Upstaff Developer Profile Directory

All vetted software engineers you need to build AI, Web3, and data Products.

  • Dedicated Full-time commitment for long-term or Time& Material for shorter or ongoing support
  • Europe, Israel, LatAm, United States, Asia geography coverage
  • Remote and hybrid engagement
  • Trial period, no termination fees or hidden costs for transparent and risk-free onboarding.
Linux 3yr.
PHP 1yr.
Python 1yr.
Expertise in C/C++ 1yr.
Docker 1yr.
JavaScript
Beautiful Soup
CSS
HTML
FastAPI
Lodash
React
PostgreSQL
SQL
SQLAlchemy
SQLite
CMake
FDD
...

Software Engineer skilled in PHP and Python for back-end development and web scraping, with experience in C++, Linux, Docker, and Git. History of developing APIs and data parsers, with expertise in server management and CMS module implementation. Holds a Software Engineering Associate Degree with focus on core computer science principles. Contributions include a C++ Tic-Tac-Toe project, showcasing proficiency in OOP and game development. Adept in multiple database systems and modern web technologies, with a strong foundation in SDLC and code refactoring.

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Seniority Junior (1-2 years)
Location Ukraine
JavaScript 8yr.
TypeScript 8yr.
SQL 8yr.
PHP 2yr.
Ruby 2yr.
Ext JS
NestJS
React
AWS DynamoDB
AWS ElasticSearch
MongoDB
MySQL
PostgreSQL
Redis
AWS API Gateway
AWS AppSync
AWS Codebuild
AWS CodePipeline
AWS Cognito
AWS EC2
AWS Lambda
AWS S3
AWS SES
AWS SNS
AWS SQS
Atlassian Confluence
Jira
Stripe
CD DevOps pipelines
Jenkins
BitBucket
ClickUp
Docker
Jest
Mocha
Smart Contract
Web3
WebSockets
Angular 2
CodeCommit
...

Full Stack Web Developer with 8 years of experience specializing in web technologies and scalable microservices architectures. Expertise in RESTful APIs, GraphQL, front-end and back-end frameworks, and cloud infrastructures, particularly with AWS services. Profound knowledge of programming languages including JavaScript, TypeScript, PHP, Ruby, and SQL. Proven track record in handling low to medium complexity projects throughout the full software development lifecycle. Technical skills encompass working with diverse databases, implementing CI/CD with AWS tools and Jenkins, containerization with Docker, and blockchain technologies like Web3 and smart contracts. Holds a Master's Degree in Applied Mathematics and Informatics, reflecting a solid engineering background.

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Seniority Senior (5-10 years)
Location Lviv, Ukraine
Go
Node.js
PHP
AI
C
Java
JavaScript
Python
.NET
React
AWS DynamoDB
MySQL
Redis
SqlServer
AWS Cloudformation
AWS Kinesis
AWS Lambda
AWS S3
AWS SQS
Firehose Kinesis
GitHub Copilot
...

Accomplished Software Architect and Hands-on Engineering Manager with a strong history of building, leading, and mentoring cross-functional teams in designing, developing, and deploying high-scalability, secure software solutions leveraging cloud platforms, microservices architectures, CI/CD pipelines, and performance optimization strategies. Experienced in both startup environments and well-established organizations, with expertise in architecting reliable distributed systems, implementing best practices, and driving innovation while delivering quality software.

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Seniority Expert (10+ years)
Location United States
Scala 5yr.
Python
Java
AWS
AI
Akka
Apache Spark
Apache Flink
Scala SBT
Scala Tapir
Scalatest
Hibernate
Spring
Spring Boot
React
Cassandra
Clickhouse
MongoDB
MySQL
Oracle Database
PostGIS
PostgreSQL
Redis
RocksDB
Slick database query
SQL
Azure
GCP
Amazon RDS
AWS S3
AWS SQS
GCE
Agile
microservices
REST
Scrum
Apache ActiveMQ
Kafka
Apache Maven
JUnit
Apache Tomcat
Docker
Kubernetes
Facebook Auth
GitLab CI
Gradle
Helm
Jenkins
Grafana
Prometheus
Splunk
Release Management
Data pipeline design
...

- 12 years of experience in backend development, including leadership roles in cross-functional teams; - Expertise in Scala, Python, and Java (with knowledge of functional programming principles); - Experience in system architecture improvements, leading teams, and developing scalable solutions; - Expertise in PostgreSQL, Oracle DB, MongoDB, and SQL; - Cloud environments such as AWS including performance and scalability optimization; - Docker and Kubernetes for container orchestration; - Apache Kafka for building event-driven architectures; - Led AI-driven projects in areas such as resume parsing, payroll automation, and learning management;

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Seniority Expert (10+ years)
Location Malaga, Spain
CI/CD
Mulesoft
Salesforce
B2C Commerce Cloud
JavaScript
Async Apex
Salesforce Lightning Component
CSS3
HTML5
jQuery
Azure
API
Flows
Front-End Web Development
...

We have an exceptional full-stack developer with over 10 years of specialized Salesforce experience, particularly strong in B2C Commerce solutions. This candidate has successfully delivered enterprise e-commerce platforms for clients across multiple industries, handling both complex back-end architecture and user-facing front-end development.Key Qualifications for Your Project Salesforce Expertise: Extensive experience across Service Cloud, Sales Cloud, Financial Services Cloud, Communications Cloud, and Marketing Cloud, enabling comprehensive platform integration. B2C Commerce Specialization: Proven track record in building custom integration solutions, including SFTP server connections, third-party service frameworks, LINK integrations, and payment processor cartridges for Adyen and Rakuten. Leadership Background: Brings valuable management experience from the power generation industry and e-commerce business ownership, providing both technical depth and business perspective. Team Collaboration: Known for maintaining calm under pressure, inspiring team members, and delivering results in both small agile teams and large enterprise environments. This developer combines deep technical expertise with strong communication skills and a collaborative approach, making them an ideal fit for complex Salesforce B2C Commerce implementations.

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Seniority Expert (10+ years)
JavaScript
TypeScript
Python
SQL
C/C++/C#
Temporal
OpenAI
leveldb
MySQL
PostgreSQL
Redis
API
Docker
Ffmpeg
Git
IPFS (InterPlanetary File System)
Linux
Postman
Prometheus
WebSockets
InterPlanetary File System
Vast
Wasabi
...

The engineer is a proficient Full-Stack Developer and R&D Engineer with a core focus on cutting-edge technologies encompassing JavaScript, TypeScript, Python, SQL, and C++. They have demonstrated expertise in frameworks and technologies like NestJS, Node.js, React.js, Next.js, Blockchain, and Cosmos SDK, coupled with strong database skills in PostgreSQL, MySQL, Redis, and LevelDB. With extensive hands-on experience in DevOps & tooling such as Docker, Git, Linux, Prometheus, and Grafana, the engineer has successfully designed and developed high-availability full-stack applications. Their professional experience includes leading feature development to shorten time-to-market and significantly improving system performance and stability through strategic optimizations. The engineer's deep understanding of RESTful APIs, microservices architecture, and workflow orchestration underscores a commitment to technical excellence in software development practices. Notable achievements include architecting critical blockchain integrations and real-time data streaming functionalities for varied user-intensive platforms. Holding a B.Tech in Computer Science from Medicaps University with a notable academic record further anchors their theoretical understanding and practical application of software engineering principles, securing the foundation for continued professional growth and contribution to technology innovation.

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Seniority Junior (1-2 years)
PHP 15yr.
Laravel 10yr.
Symfony
PostgreSQL
Spryker
JavaScript
CSS
HTML
Git
Github Actions
GitLab CI
Jira
Kafka
...

Senior PHP Back-end Developer with a strong background in computer science and extensive expertise in the Laravel and Symfony frameworks, boasting over 15 years in the industry and mastery in full-stack technologies. Proficient in database management with MySQL and PostgreSQL, and skilled in the use of design patterns, SOLID principles, and OOP to enhance software architecture and code quality. Demonstrates advanced knowledge in implementing and optimizing REST APIs, Kafka message brokering, and pioneering large-scale data operations. Experienced in fostering agile and TDD methodologies to drive continuous integration and delivery, underscoring technical leadership through mentorship and development of innovative web applications.

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Seniority Expert (10+ years)
React Native
React
JavaScript
TypeScript
HTML/CSS Preprocessors
C/C++/C#
Crashlytics
CSS
Tailwind CSS
Formik
React Navigation
Redux
Redux-Saga
Svelte
Cloud Firestore
Vercel
Google Maps API
GraphQL
RESTful API
SVG
...

Accomplished Senior React Native Developer with a solid 7-year track record in mobile application development, underpinned by a bachelor's degree in Computer Science and Engineering. Expert command of React Native, JavaScript, and TypeScript, complemented by proficiency in leveraging ancillary technologies such as Redux, Firebase, and RESTful services. Demonstrated prowess in modern software engineering practices, including unit testing, code reviews, SDLC, and agile methodologies. Adept at fostering junior developers' growth while navigating complex project ecosystems and enhancing app performance and user experience, distinguishing themselves as a potent candidate for technology-driven roles.

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Seniority Senior (5-10 years)
Location Tashkent, Uzbekistan
JavaScript
React
TypeScript
Node.js
Redux
Hugging Face
Bootstrap 4
CSS
CSS3
HTML
HTML5
SASS
Tailwind CSS
Express
Ext JS
Redux-toolkit
TestCafe
MongoDB
PostgreSQL
AWS
API
RESTful API
Chai
CI/CD
Cypress
Jest
Git
Git submodules
Research Skills
STLC
...

A senior software engineer with over 6 years of full-stack experience specializing in React, TypeScript, and Node.js. This engineer has a proven track record of enhancing user engagement and retention through innovative UI design and application development. Their technical proficiency is demonstrated by significant contributions to a SaaS startup, including a 20% customer retention increase, and internal tooling that improved staff participation and satisfaction. Holding a Bachelor's in Computer Science and pursuing an Executive MBA with an AI specialization, they combine strong educational foundations with practical expertise in JavaScript frameworks, API integrations, and developing scalable, performance-optimized features. Strategic projects like the AI-powered skill assessment app illustrate their ability to leverage cutting-edge technologies to deliver impactful solutions.

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Seniority Senior (5-10 years)
Location Lagos, Nigeria
JavaScript
TypeScript
Express
WebRTC
GCP
Dash
Node.js
React
React Native
AWS
Azure
GCP BigQuery
Docker
HLS
Angular 2
Oracle VM
RabitMQ
...

Experienced Software Engineer with over 14 years of commercial development experience. Strong expertise in object-oriented programming, full-stack development, and cloud architecture. Proven leadership in managing both small and large engineering teams. Committed to delivering high-quality, scalable, and efficient software solutions across diverse platforms.

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Seniority Expert (10+ years)
Location Lviv, Ukraine
.NET 12yr.
.NET Core 6yr.
Angular
PSQL
SQL
...
Seniority Senior (5-10 years)
Location Ho Chi Minh City, Vietnam
Python
OpenAI
RAG
Azure ML
AI
Amazon Machine learning services
AWS ML (Amazon Machine learning services)
AWS SageMaker
AWS SageMaker (Amazon SageMaker)
Azure AI Vision
Azure OpenAI
FCN
GenAI
GPT
LangChain
LSTM
Nvidia DeepStream SDK
Nvidia Holoscan SDK
ONYX
OpenCV
Pinecone
PyTorch
TensorFlow
ViT
VITS
Whisper
YOLO NAS
C#
C++
Akka Streams
Chrome Extensions
Gstreamer
Express
Node.js
React
Flask
Redux
Redux-Saga
Salesforce
Spring
Spring Security
Business Intelligence (BI) Tools
Databricks
ML
ChromaDB
Cosmos DB
ORM
Redis
AWS
Nvidia AGX
Nvidia IGX
AWS EC2
AWS Lambda
AWS S3
Azure Blob Storage
Azure Functions
Microsoft Azure API
Atlassian Trello
Jira
Celery
Kafka
RabbitMQ
CI/CD
Jenkins
Docker
Kubernetes
JWT
RESTful API
Nvidia
Calypso
Payanote
...

- Senior AI/ML engineer with hands-on experience in GenAI platforms, LLM orchestration, and RAG pipelines; - Skilled in Python and C# for backend services, chatbot architecture, and AI integration pipelines; - Built and deployed RAG systems using Azure OpenAI, AI Search, and LangChain; - Developed Whisper-based transcription pipelines with speaker diarization for business meeting summarization; - Integrated OpenAI models and multimodal embeddings into workflow automation tools like Jira and Trello; - Experience in distributed processing with Celery, RabbitMQ, and Redis for asynchronous task execution; - Deployed scalable AI services in Azure and AWS environments, using Kubernetes, Helm, and Azure DevOps; - Built real-time event processing and notification systems using Kafka and Apache Camel; -Designed APIs and backend services for customer support chatbots, voice platforms, and CRM integration; - Applied prompt engineering, testing (xUnit, pytest), and CI/CD automation across multiple AI initiatives.

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Seniority Senior (5-10 years)
Location Kyiv, Ukraine
Angular
React
MongoDB
AWS
TypeScript
JavaScript
AngularJS
Backbone.js
Express
NestJS
Node.js
Angular Material UI
Bootstrap
Electron
LoopBack
Polymer
React Native
Flutter
Ionic
MySQL
AWS Amplify
AWS S3
GraphQL
...

- Experienced full-stack developer with 13 years of experience in software development - 6+ years in top-level and lead positions. - Proficient in organizing work, delegating tasks, and leading by example to accomplish team goals. - Adept in problem-solving, managing project progress, and communicating progress to stakeholders. -Skilled in coaching and motivating team members to improve their skills and reach their full potential. -Well-versed in Angular, Angular.js, Angular Material, React, Bootstrap, Node.js, Express, Nest.js, Loopback, MySQL, MongoDB, GraphQL, AWS, AWS S3, AWS Amplify, Electron, Ionic Framework, Flutter, and React Native.

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Seniority Senior (5-10 years)
Location Ukraine
.NET
React
Azure
C
C#
C++
Java
PHP
Python
Rust
TypeScript
VBA
Angular
jQuery
ASP.NET
ASP.NET MVC Pattern
Entity Framework
.NET Framework
nuget
WPF
CSS
HTML
MySQL
PostgreSQL
SQL
AWS
GCP
Azure DevOps
Azure MSSQL
Hyper-V
Google Cloud AI
Agile
MVC
OOP
Scrum
SOAP
Android
API
Web API
Azure DevOps Server (ex TFS Team Foundation Server)
BitBucket
Git
GitHub
GitLab
SVN
CI-CD Pipeline
DevOps
Octopus Deploy
SonarQube
TeamCity
Zero downtime deployment
Docker
Kubernetes
Terraform
Excel
iOS
Linux
Windows
PowerShell
Project Management
QA
Xamarin
EPPlus
Sitecore
XlWings
...

- Full-Stack .NET Engineer with 16 years of experience developing innovative products and leading teams and companies in the IT sector. - Has 6+ years of experience working with payment systems integrating MasterCard, Visa, Payoneer, and PayPal into the user's programs. - Has 4 years of experience with Sitecore in different domains like Hospitality, Tourism, and Automotive. - Expertise in system architecture, analytics, optimization, DevOps - Proficient in C# and .NET framework, with extensive experience in ASP.NET Core, Blazor, and Electron.NET. - Strong background in implementing DevOps practices, including continuous integration and continuous deployment (CI/CD), version control using Git, and automation with tools like Jenkins and Azure DevOps. - Led and managed teams in various roles such as Team Lead, Architect, and DevOps. Demonstrated leadership skills in defining goals, assigning tasks, and ensuring project success.

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Seniority Expert (10+ years)
Location Spain
Node.js
React
AWS
GCP
CoPilot
OpenAI
JavaScript
TypeScript
CSS3
HTML5
Material UI
ShadCN
Tailwind CSS
Expo
React Native
Redux
Redux-toolkit
SWR
Vite
Zustand
Express
NestJS
Next.js
AWS DynamoDB
Firebase
FireStore
MongoDB
MySQL
PostgreSQL
Redis
SQL
SQLite
Supabase
Azure
Crossmint
DigitalOcean
Heroku
Vercel
AWS API Gateway
AWS Cognito
AWS Lambda
AWS S3
AWS SNS
Serverless Framework
Android
Headless CMS
Sanity CMS
Api Gateway
Google Auth
GraphQL
JWT
OAuth
RESTful API
Stripe
Apple Auth
CRUD
microservices
REST
SSR
Docker
Git
GitHub
iOS
Jest
Sanity Testing
WebSockets
RainbowKit
...

- 5+ years in web and mobile development (Node.js, NestJS, Next.js, React); - AWS and GCP clouds, including Serverless Framework for serverless app deployment; - PostgreSQL, MongoDB, Docker, and microservice-based architecture; - Delivered real-time features using WebSockets for game logic and session state, REST and GraphQL APIs with Express.js and NestJS; - Experience with billing, auth, and dashboard modules for SaaS, fitness, and e-commerce platforms. Integrated Stripe and Google/Auth for billing and authentication; - Applied CI/CD, unit testing, and agile workflows across all projects

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Seniority Senior (5-10 years)
Location Ukraine
JavaScript 5yr.
Node.js 5yr.
React 5yr.
TypeScript
NestJS
MongoDB
PostgreSQL
AWS
CI/CD
Docker
GraphQL
REST
serverless
...

Vladyslav S. is a Senior JavaScript Developer with 6+ years of experience specializing in React.js, React Native, and Node.js. Experienced with AWS services (Lambda, ECS, RDS, DynamoDB), Firebase, Terraform, and CI/CD pipelines (GitHub Actions, Docker). Proficient in REST APIs, state management (Redux, MobX), and modern frontend frameworks like Next.js and Angular. Strong team collaborator with clean code practices and a focus on scalable architecture.

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Seniority Senior (5-10 years)
Location Ukraine
Quadient Inspire
...

I am a Quadient developer looking for job in Netherlands. I have 9 years of relevant exp and immediate joiner

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Seniority Senior (5-10 years)
Location Voorburg, Netherlands
.NET
React
Angular
C#
JavaScript
TypeScript
ADO.NET
ASP.NET
ASP.NET Core Framework
ASP WebForms
Entity Framework
.NET Core
.NET Framework
WPF
jQuery
Node.js
Vue.js
Bootstrap
CSS
HTML5
NgRx
Vuetify
AWS Redshift
Cassandra
Microsoft SQL Server
MySQL
AWS
Azure
AWS EB (Amazon Elastic Beanstalk)
AWS EC2
Azure DevOps
Azure Gateway
GRPC
Kafka
Kubernetes
microservices architecture
MVC
Octopus Deploy
OpenTelemetry
PayPal API
Stripe
EF Core
Protobuf
Razor Pages
RX.js
ScyllaDB
...

- Full-stack web developer with more than 9 years of commercial experience. - Has worked on a wide range of projects, including financial remittance systems, medical appointment websites, and payment systems for electronic document exchange services. - Has experience working with a range of technologies including ASP.NET Core, .NET Core, EF Core, TypeScript, Node.js, Microservices, Kafka, Azure, AWS, Angular, React, Vue.js, and WPF. - Strong bug-fixing skills and experience with DevOps responsibilities. - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Lviv, Ukraine
PHP 5yr.
Node.js 5yr.
MySQL 5yr.
JavaScript 5yr.
PostgreSQL
Python
TypeScript
Ant Design
API
Code Review
Git
microservices architecture
Data Migration
Optimism
...

Software Engineer with 5+ years of backend development expertise, focusing on API construction, microservices management, and database performance optimization. Proficient in PHP, Node.js, NestJS, JavaScript, TypeScript, MySQL, and PostgreSQL. Holds a Bachelor degree in Science and has worked on enhancing Shopify web applications and designing scalable backend infrastructures. Known for optimizing MySQL queries to increase performance and improve server stability under high load conditions, resulting in more efficient and maintainable systems.

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Seniority Middle (3-5 years)
Location Surat, India
JavaScript 5yr.
React 5yr.
Node.js 5yr.
Python 5yr.
TypeScript 3yr.
Amazon Machine learning services
AWS ML (Amazon Machine learning services)
TensorFlow
AWS EC2
AWS Elastic Kubernetes Service (EKS)
AWS Lambda
AWS S3
Google Maps API
GraphQL
AWS Elastic Kubernetes Service
RDS
...

Lead Full Stack Developer with 5+ years of experience specializing in developing scalable web applications and architecting cloud-native solutions. Extensive experience with a wide range of technologies like JavaScript (ES6+), TypeScript, Python, React.js, Node.js, AWS, and DevOps tools including Docker and Kubernetes. Proven track record in leading teams, improving system performance, and integrating advanced security measures. Holds a strong background in Computer Science with a high GPA and certifications in AWS and Google Cloud. Recognized for contributions to the tech community and excellence in optimizing real-time systems.

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Seniority Middle (3-5 years)
Location Islamabad, Pakistan
JavaScript 6yr.
React 6yr.
Go
Node.js
React Native
CSS 6yr.
HTML 6yr.
Git 6yr.
Github Actions 6yr.
RESTful API 6yr.
Bootstrap 4
Material UI
Socket.io
Tailwind CSS
Crashlytics
Express
mui
MongoDB
PostgreSQL
Vercel
CircleCI
Cypress
Dapp
MetaMask
NFT
GraphQL
GRPC
microservices
...

A seasoned Full Stack Developer brings over six years of experience, specialized in JavaScript, Golang, and React Native, with profound knowledge of modern frameworks like NextJS and NestJS. Proven track record in leading projects from inception to launch, showcased through success in diverse domains such as Legal Tech, AgriTech, and Health. Demonstrates expertise in writing efficient, optimized code, backed by the ability to guide design efforts and manage installations for on-time product rollouts. Familiar with CI-CD pipelines, evident from setting up CircleCI, and skilled in complex technology ecosystems, including Microservices, Kubernetes, Docker, and AWS. Adept at full lifecycle software development practices, integrating various technologies with a focus on robust, scalable web and server solutions.

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Seniority Senior (5-10 years)
JavaScript
TypeScript
React
Angular
Express
NestJS
Node.js
Cordova
Ionic
CSS
HTML
SASS
SCSS
Mongoose
React Native
Redux
Redux-Saga
Redux-toolkit
RxJs
MongoDB
AWS
AWS Cognito
AWS Lambda
AWS S3
AWS SAM
Api Gateway
Azure DevOps Server (ex TFS Team Foundation Server)
Cypress
Jest
Git
serverless
WebStorm
...

- 8+ years of experience in software development with a focus on JavaScript, TypeScript, and full-stack engineering; - Built complex web applications using React.js, Angular, and React Native across edtech, healthtech, e-commerce, and banking projects; - Developed cross-platform interfaces, including AI-powered chatbots with Whisper and Heygen, and real-time messaging platforms; - Worked with Redux Toolkit, RxJS, Nest.js, and Express for scalable state management and backend logic; - Delivered serverless APIs using AWS Lambda, API Gateway, Cognito, and integrated MongoDB via Mongoose; - Experienced in performance optimization, refactoring, bug fixing, and CI/CD using the Serverless Framework; - Built and maintained responsive UIs with accessibility, mobile support, and data visualization features; - Participated in team-based delivery with cross-functional collaboration and code quality improvements.

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Seniority Senior (5-10 years)
Location Krakow, Poland
.NET
C
C#
C++
JavaScript
TypeScript
ADO.NET
ASP.NET MVC Pattern
ASP.NET WebForms
Entity Framework
Mono
.NET Core
.Net WCF
Ajax
Bootstrap
CSS
DHTML
DOM
HTML
jQuery
XML
Angular
AngularJS
Express
Node.js
ATL
Cordova
Ionic
MFC
NHibernate
Microsoft SQL Server
MongoDB
MySQL
Redis
AWS
AWS RDS (Amazon Relational Database Service)
AWS S3
Azure DevOps
Azure VM
Active Directory
STL
Visual Studio
Windows
Windows API
Winforms
Xamarin
AJAX Control Toolkit
COM
DirectShow
ES2
Fluent Validation
GDI
GDI+
IBM PC compatible
LINQ to SQL
OM
ypeScript
...

- Full-stack software developer with 15 years of experience - Expert in C#, asp.net, asp.net MVC, .net core, native JS, Jquery, Angular 1 and 2+ generation, and other technologies in the web development stack. - I have experience in C\C++, WinApi, COM, MFC and other technology stacks and I can work with the intersection of these technologies - My experience includes team and technical management, mentoring, and project management for new teams - Industries: Logistics and transportation, business intelligence, insurance and reinsurance, healthcare, government, information technology and services, professional services, computer software. - Upper-intermediate English

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Seniority Senior (5-10 years)
Location Budva, Montenegro
HTML
CSS
JavaScript
Node.js
MongoDB
Bootstrap 4
Express
Mongoose
Git
Github Actions
Microsoft Visual Studio Code
RESTful API
...

Software engineer with practical experience in full-stack web development, encompassing HTML, CSS, JavaScript, Node.js, and MongoDB. Proven track record with internships at CodeCraft Solutions and Nestsoft Technologies, demonstrating strong initiative, self-motivation, and real-world project management. Robust educational foundation with a Bachelor's in Computer Applications plus a specialization in Cyber Security. Developed a Master Study Portal project, showcasing skills in front-end and back-end development, RESTful API integration, and database management using Mongoose. Competent in version control with Git, and proficient with modern development tools such as GitHub and VS Code. Technical skill set further includes Bootstrap, Express.js, and REST API development.

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Seniority Intern
Location Romania
Elixir Phoenix 5yr.
PostgreSQL 5yr.
Ruby on Rails 2yr.
Neo4j 2yr.
React
MySQL 2yr.
Go
Rust
LLM
Angular
Apex DataLoader
Fastly
GCP
AWS S3
Azure Blockchain
Ansible
Cryptography
ETH (Ethereum blockchain)
GraphQL
SOLID
XCUITEST
jsQR
Oban
...

An adept Senior Software Engineer with a strong background in Elixir/Phoenix, robust API development, and systems scalability. Engineered the 'Wukong API Proxy' to streamline deployment timelines at Mindvalley, resulting in significant reduction of developer wait times. Skillfully managed Robu Sdn Bhd’s software team, developing its B2B2C platform and ensuring efficient cloud-based deployments. At Fave, excelled in site reliability while transitioning infrastructure from AWS to GCP and enhanced web app performances via Elixir optimizations. With a Bachelor's in IT from Universiti Teknologi Petronas, the candidate demonstrates a solid grasp of software development. Emphasizes AI-assisted workflows, mastering languages like Ruby on Rails, Elm/React, and Rust, and diversifies with a foundational understanding of cryptography and blockchain technologies.

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Seniority Senior (5-10 years)
Location Kuala Lumpur, Malaysia
PHP 11yr.
Symfony 11yr.
PostgreSQL
MongoDB
AWS
API
...

Expert with PHP, Symfony, Relational and No-SQL databases. Hands on AWS, Gitlab Ci/CD

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Seniority Expert (10+ years)
MS SQL Server Management Studio
Unreal Engine
Linea
Azure VM
PHP
Express
Node.js
React
Java SE
Business Intelligence (BI) Tools
MongoDB
MySQL
Agile
Clean Architecture
FDD
MERN stack (MongoDB, Express, React, Node)
Tools
...

Seasoned Head of Engineering with 8+ years of experience in driving technical strategy and leading multidisciplinary development teams. Expertise in AI, blockchain, and full-stack custom software solutions including MERN stack, PHP, and MySQL. Proven track record at Macromodule Technologies, shaping engineering culture with agile principles and maintaining focus on delivering business-aligned, future-ready software products. Holds a Bachelor of Science in Computer Science and has previously elevated backend systems at Dtech Systems and spearheaded full-stack projects at ArhamSoft. Known for integrating emerging technologies and establishing engineering KPIs that foster continuous improvement and technical excellence.

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Seniority Expert (10+ years)
Java 21yr.
Spring 21yr.
databases 21yr.
Keycloak 3yr.
Blockchain 2yr.
1C 21yr.
React 9yr.
Spring Boot
Struts 2
Redis
Snowflake
AWS
AWS Lambda
BSC
NFT marketplace
FDD
Observer
Scrum
UI/UX
Dotnet core
IOT
OOAD
Oracle Fusion Middleware
OSB-SOA
POC
Unreal Engine
...

Seasoned software engineer with over 21 years of industry experience, specializing in Java enterprise architectures and full-stack development. Known for executing robust back-end systems using frameworks like Spring, with prowess in front-end technologies like React. Demonstrated expertise in adapting and implementing SOA, REST, and design patterns, which enhance software design and problem-solving effectiveness. Strong history of engaging in complex projects, including NFT marketplaces and web analytics systems using diverse technologies (AWS, SOLR, Lambda). Proven record of delivering end-to-end solutions from architecting secure authentication infrastructures to crafting real-time mobile apps for contact tracing. Educated in Electrical, Electronics, and Communications Engineering, leveraging a deep understanding of the software development lifecycle and agile methodologies to lead multidisciplinary projects successfully.

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$30/hr
$5000/month
React
Vue.js
Angular
Next.js
Nuxt
JavaScript
Express
GatsbyJS
ASP.NET
Django
Fabric
Laravel
NgRx
Redux
Vuex
Firebase
AWS
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Organized, collaborative and highly skilled full stack & blockchain developer with 8+ years of professional experience in dynamic and deadline-driven work environments. Self-motivated and self-taught professional who always trends to challenge difficult problems no one dares to try. The following skills can cover your project? - Blockchain (Solidity, Web3.js, Ethers.js) - JS frontend frameworks (React, Vue, Angular, Next, Nuxt, Gatsby) - Backend skills (Laravel, Express, Django, .NET) - Other (GraphQL, Shopify, AWS, Firebase, Google APIs, Typescript) If so, your project is already 99.99% done. The only thing left is to hire me and wait for the perfect result drinking coffee ~_~

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Seniority Senior (5-10 years)
Location Toronto, Canada
React 4yr.
Redux 4yr.
RESTful API 4yr.
TypeScript 4yr.
Vue.js 2yr.
JavaScript 4yr.
Bootstrap 4yr.
Firebase 4yr.
Axios 4yr.
Docker 4yr.
Git 4yr.
Postman 4yr.
Ant Design 3yr.
Material UI 3yr.
Styled components 3yr.
Formik 3yr.
i18next 3yr.
React-hook-form 3yr.
Tailwind CSS 2yr.
Mobx 2yr.
Redux-Saga 2yr.
Redux Thunk 2yr.
Redux-toolkit 2yr.
Zustand 2yr.
NestJS 2yr.
Node.js 2yr.
MongoDB 2yr.
Jest 2yr.
React-testing-library 2yr.
React Native 1yr.
Next.js 1yr.
AWS 1yr.
Azure DevOps 1yr.
...

- Versatile Frontend Developer with 4 years of experience in React, React Native, and Vue.js. - Strong track record of working on various projects and delivering high-quality web and mobile applications. - Proficient in JavaScript/TypeScript, React, Redux, Redux Toolkit, Axios, and Vue. - Experienced in mentoring and teaching, with extensive teaching experience. - Skilled in Agile methodologies, Git, REST APIs, and MongoDB. - Familiar with Docker, AWS, Firebase, and Azure Devops. - Proficient in frontend development frameworks and libraries such as Material-UI, Antd, Tailwind, and Bootstrap.

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Seniority Middle (3-5 years)
Location Warsaw, Poland
Spryker
PHP
Go
Symfony
AWS ElasticSearch
MongoDB
Redis
GCP
Agile
DDD
TDD
Docker
Kubernetes
Jira
Akeneo
Aumio
Git Scrum
Make.com
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Seniority Senior (5-10 years)
Location Bosnia and Herzegovina
Python 5yr.
JavaScript 5yr.
Java 2yr.
TypeScript
SQL
Express 5yr.
CSS 5yr.
HTML 5yr.
Redux-Saga 5yr.
MongoDB 5yr.
PostgreSQL 5yr.
CD DevOps pipelines 5yr.
Git 5yr.
Angular 2yr.
Spring Boot 2yr.
MySQL 2yr.
Jenkins 2yr.
Stripe 2yr.
PHP 1yr.
Laravel 1yr.
seo 1yr.
LangChain
OpenAI
PyTorch
Ext JS
Bootstrap 4
Tailwind CSS
Crashlytics
Django REST framework
FastAPI
Flask
NLTK
Azure
GCP
JWT
Github Actions
Kubernetes
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A highly proficient Full-Stack Developer with over 7 years of experience, specializing in AI and NLP applications alongside web development. Adept at optimizing large language models, designing intelligent systems, and developing full-scale software solutions. The engineer's technical skill set encompasses Python, JavaScript, TypeScript, Java, C++, and SQL, with mastery in AI & NLP tools such as Hugging Face and TensorFlow. Their proficiency extends to full-stack development with a focus on MERN stack and Vue.js, demonstrated by a history of delivering high-performance, responsive e-commerce platforms, and proprietary CMS interfaces. With a Bachelor's degree in Computer Science and a strong background in DevOps practices, cloud platforms, and deployment technologies, the candidate has a proven track record of enhancing backend performance and streamlining deployment pipelines, positioning them as an asset for technically demanding roles.

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Seniority Senior (5-10 years)
Location Lviv, Ukraine
PHP 6yr.
MySQL 5yr.
Laravel 4yr.
React 2yr.
GatsbyJS
Tailwind CSS
Azure Data Factory
Redis
Agile
Refactoring
API
RabbitMQ
Optimism
Teamwork
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Software engineer with extensive experience in full-stack development, focusing on back-end technologies. Expertise in PHP, Laravel, MySQL, Redis, and Vue.js, with a background in computer engineering. Proficient in solving workflow issues through system design, exemplified by creating a generator tool that enhanced efficiency by a significant margin. Skilled in optimizing database queries and implementing TDD, familiar with Docker and Stripe integrations. Proven track record of improving team performance with task automation and has contributed to open source projects. Holds a strong commitment to continuous learning and problem-solving in high-traffic environments.

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Seniority Middle (3-5 years)
Location Yerevan, Armenia
Solidity
PHP 13yr.
Node.js 3yr.
C
C#
C++
Java
JavaScript
Kotlin
Android APIs
CSS
HTML
jQuery
EJS
Mocha.js
Express
NestJS
Vue.js
Jhipster
Spring
Smarty
Yii
MySQL
AWS
Android
API
Apache Maven
DeFi
ETH (Ethereum blockchain)
EVM
Geth
Hardhat
NFT
Truffle
Web3
Git
MVC
WebSockets
Unreal Engine
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- Software engineer with 10+ years of experience, specializing in Web and Blockchain technologies; - Expertise in Solidity for designing and deploying smart contracts; - Experienced in using Hardhat and Truffle for smart contract development and testing; - Deep abilities in Ethereum ecosystems and Solidity-based architectures; - Skilled in Ether.js and Web3.js for building dApps; - Proficient in designing complex systems, including yield farming and DeFi protocols; - Strong background in full-stack development; - Skilled in Node.js, Express.js, PHP, Java, and Kotlin for backend development; - Experienced in front-end development with Vue.js and EJS JavaScript frameworks; - Proven experience leading projects from concept to deployment across the entire SDLC; - Skilled in mentoring remote teams and collaborating effectively across functions; - Experienced in solution architecture, designing scalable systems, and ensuring smooth integration across platforms.

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Seniority Senior (5-10 years)
Location Bulgaria
Java
Keycloak
Kotlin
Apache Spark
GWT
Hibernate
Spring
Spring Boot
React
Java Server Pages (JSP)
JDBC
JMS
MyBatis
XML
XSLT
Oracle Database
PostgreSQL
SQL
Sybase
AWS
DevOps
Jenkins
Docker
Kubernetes
Terraform
J2EE
microservices architecture
TDD
Spock
Apache Calcite
ASE
IQ
JBPM5
Jenkins Pipeline DSL
...

- 15 years in the software development industry as a Java Engineer - 6+ years of experience with Keycloak, utilizing Keycloak for permission and role/group-based authorization with decentralized user access management. - Adept at integrating Keycloak with external user sources such as LDAP and databases, and implementing custom sync mappers for groups. - Proficient in designing and implementing architectural solutions of web-based applications. - Team leading, organization of development process experience. - Experience with Java, and JS (SpringBoot, ReactJs). - Experience with different DB engines, and SQL performance optimization. - Web app security. Authentication & Authorization. - DevOps (Docker, K8s, Jenkins) - AWS Cloud - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Krakow, Poland
SDLC 3yr.
Node.js 3yr.
JavaScript 3yr.
SQL 3yr.
NoSQL 3yr.
CSS3 3yr.
HTML5 2yr.
Unix 2yr.
Neural Networks
Ant Design
Git
Linux
Windows
Office 365
Technical Documentation
STLC
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Versatile software engineer with a Bachelor's degree in Computer Engineering and Technology eager for defense from United Methodist University in Mozambique. Showing 3 years of real-world experience with expertise in software development and technical support. Proficient in contemporary web and mobile development, this engineer has successfully built and maintained applications using Node.js, JavaScript, and optimized SQL and NoSQL databases. Technical acumen extends to mobile app creation using React Native and Ionic, as well as comprehensive data analysis utilizing Power BI. Recognized for contributing to collaborative product design and exhibiting strong problem-solving skills. Skilled in an array of programming languages and tools including Python, JavaScript, C++, Git, and more; this candidate stands out for their dynamic approach and adaptability to new technologies, ready to bring value through strong software development practices.

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Seniority Junior (1-2 years)
Location Maputo, Mozambique
Python 3yr.
FastAPI
Generative AI
SQL
MongoDB
Hugging Face
LangChain
LlamaIndex
Flask
relational databases
Data Structures
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Software engineer with a strong foundation in computer engineering and practical experience in developing scalable applications. Showcases expertise in Python, Flask, FastAPI, and an array of frameworks including Docker and Celery. Proven track record in optimizing data retrieval and processing, exemplified by a 50% performance increase and reduced RAM consumption at Crest Data. Innovatively implemented AI solutions, such as the Netskope AI plugin with Amazon Bedrock, and contributed to machine learning projects during an internship. Holds a solid educational background with a Bachelor's degree in Computer Engineering, boasting a high CGPA of 8.6. The engineer's work through hackathons and personal projects, geared towards automating compliance and transforming flight booking datasets using LLMs, further distinguish their profile as both skilled and innovative in the field of software engineering.

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Seniority Middle (3-5 years)
Location India
Java
Python
React
Node.js
AWS
JavaScript
TypeScript
Angular
D3.js
Express
jQuery
Bootstrap 4
Chart.js
HTML/CSS Preprocessors
Spring Boot
Apache Airflow
Power BI
Tableau
AWS DynamoDB
MongoDB
MySQL
PostgreSQL
Redis
SQL
SQLite
Sybase
GCP
Atlassian Confluence
Jira
Figma
Git
Github Actions
Jenkins
JUnit
Mockito
Postman
Kafka
RESTful API
Swagger
Terraform
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Software engineer with over 5 years of full-stack development experience in healthcare, aviation, and analytics domains. In-depth knowledge of cloud-native technologies, microservices, and scalable architectures, backed by a Master of Science in Information Systems. Demonstrated ability to integrate AI models and deliver high-impact automation workflows. Proficient in Java, Python, React, and Node.js, complemented by strong experience with AWS, GCP, Docker, Kubernetes, and CI/CD implementations. Remarkable accomplishment includes the development of AI-powered microservices that increased system accuracy, and the execution of end-to-end CI/CD workflows for enterprise-grade applications.

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Seniority Middle (3-5 years)
Location Hopkins, United States
HTML
CSS
JavaScript
PHP
Bootstrap 3
React
WooCommerce
Prototyping
UI/UX Design
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A dynamic Full Stack Developer and Video Editor with over 2 years of experience in web development and video editing. Expertise in creating responsive websites and fine-tuning video content utilizing an array of technologies including HTML, CSS, JavaScript, PHP, and Python. Proven ability to manage e-commerce projects like 360cartmall.com, showcasing capabilities in UI/UX and back-end development. Agile in developing solutions with modern frameworks and tools such as React, Visual Studio, and XAMPP. Holds a Bachelor’s in Software Engineering, underpinning a solid technical foundation. Adept at translating complex requirements into user-centric designs and functionalities, reflecting a strong background in SDLC and software development best practices.

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Seniority Middle (3-5 years)
Java
C/C++/C#
Python
JavaScript
SQL
...

A proactive software engineer with a specialty in backend development and competitive programming. Proficient in Java, C++, Python, JavaScript, SQL, and skilled in using backend technologies such as Node.js, FastAPI, Flask, and Django, with basic knowledge in Spring Boot. Extensive practice with databases like PostgreSQL, MySQL, and MongoDB and tools such as Docker, Git, and Postman. Exhibits a strong foundation in computer science education with B.Tech majoring in AI and Data Science. Demonstrates experience in RESTful API design, MVC architecture, and unit testing, having applied these in practical projects like SheRide cab app and Dijkstra & A* Pathfinding Visualizer. Acknowledged for technical prowess by ranking Top 10 in the Smart India Hackathon 2024 and reaching the finals in SUSTAIN-A-THON 2024. Holds a solid grasp of software engineering principles, evidence by hands-on project experience and achievements in the field.

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Seniority Intern
Location Faridabad, India
NestJS
React Native
React
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Experienced full-stack developer with a strong background in scalable architecture design, cloud infrastructure, and modern web and mobile technologies. Proficient in building distributed systems using React Native, React, Node.js, and NestJS. Skilled in managing containerized deployments, service orchestration, and performance optimization across microservice-based environments. Solid understanding of CI/CD pipelines, monitoring, and cloud platforms like DigitalOcean.

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Seniority Senior (5-10 years)
Node.js
PostgreSQL
AWS
Angular
React
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Seniority Senior (5-10 years)
Location Skopje, The Former Yugoslav Republic of Macedonia
FDD 4yr.
React
Python
Node.js
TypeScript
Ajax
ckeditor
CSS
Tailwind CSS
Express
FastAPI
React Native
Redux-Saga
Celonis
MongoDB
AWS EC2
CI/CD
GitLab CI
Jenkins
Docker
RESTful API
MERN stack (MongoDB, Express, React, Node)
SweetAlert2
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Full-Stack Web Developer with over four years of experience, specializing in the MERN Stack and Python Django. Proven expertise in building scalable, secure web applications and teaching full-stack development principles. Experienced in both frontend and backend development, as well as cross-platform application development. Technical skills include MongoDB, Express, React, Node.js, MySQL, and AWS services. Proficient in SDLC, REST API design, and software development best practices, driving efficiency and performance improvements in web applications. Strong background in delivering in-depth training programs for aspiring software developers, contributing to their career success.

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Seniority Middle (3-5 years)
Location Pune, India
Power BI
Microsoft Dynamics
HTML 10yr.
HTML5 10yr.
CSS 9yr.
JavaScript 3yr.
Azure Data Factory 3yr.
Microsoft SQL Server 3yr.
SQL 3yr.
Azure 3yr.
Azure Logic Apps 3yr.
Python 2yr.
C# 1yr.
MS Power Automate
CMS
SharePoint
Office 365
Power Apps
Visual Studio
Dynamics CRM
Ribbon
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- IT experience starting in 2012; middle frontend developer since 2015. - Experience with the full lifecycle of designing, developing, installing, configuring, and maintaining applications on SharePoint 2016/2019, 2019 Online, Office 365, Power apps, Dynamics CRM, Power BI - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Ukraine
SharePoint
C# 10yr.
JavaScript 10yr.
CAML 10yr.
CSS 10yr.
HTML 10yr.
jQuery 10yr.
Visual Studio 10yr.
Web Services 10yr.
Microsoft SQL Server 7yr.
Bootstrap 5yr.
Vue.js 4yr.
TypeScript 3yr.
Metro UI 3yr.
AngularJS 3yr.
React 3yr.
Fluent UI 2yr.
Ajax
ASP.NET
.NET
SPFx
Office 365
PowerShell
RESTful API
CSOM
JSLink
JSOM
...

- IT experience starting in 2011. - Professional experience with the full lifecycle of designing, developing, installing, configuring, and maintaining applications on SharePoint 2007/2010/2013/2016/Online, Office 365,Power Platform (Power Apps, Power Automate), Nintex. - Upper Intermediate English

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Seniority Senior (5-10 years)
Location Ukraine
Ruby on Rails
Architecture and Design Patterns
STLC
PMP
React
VBA
Salesforce Lightning Component
MS SQL Server Management Studio
Cloud Functions
SDLC
CI/CD
Code testing practices
Datadog
Leadership
Mentor Aptitude
UI/UX
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Senior Software Engineer with extensive expertise in Ruby on Rails, React, and Node.js, specializing in scalable web applications and fostering technical leadership. Details include tech lead roles, impactful feature launches, and revenue growth through strategic experiments. Demonstrated strengths in CI/CD, monitoring with tools like Datadog, and coding best practices. Holds a PMP credential and a track record in both individual contribution and team mentorship. Educational background features a Master in Systems and Computing Engineering.

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Seniority Expert (10+ years)
JavaScript 5yr.
Swift 5yr.
FDD 5yr.
Node.js
React
Objective-C
ASP.NET MVC Pattern
.NET
Backbone.js
Meteor
Ethers.js
p5.js
Web3.js
FireStore
MongoDB
GCP
Agile
Algolia
CI/CD
Docker
Hardhat
Fastlane
Github Actions
Ubuntu
WebRTC
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Software engineer with 9+ years of experience, excelling in full stack development with expertise in JavaScript, Swift, and iOS development. Proven track record of leading successful projects, including winning multiple hackathons and developing robust blockchain-based solutions. Demonstrates strong technical leadership, having managed diverse engineering teams and fostering agile best practices. Well-versed in various technologies like Node.js, React.js, Firebase services, Ethers.js, Web3.js, and AWS, with a solid foundation in computer science from Universidad Nacional del Nordeste. The engineer's proficiency in building scalable systems for music streaming, live video monitoring, and blockchain integration positions them as a valuable asset to any team seeking deep technical expertise and innovative solutions.

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Seniority Senior (5-10 years)
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