Discover Top Developer Profiles

Our directory at Upstaff.com showcases a talented group of developers, each bringing a wealth of expertise to the table.

  • With profiles highlighting skills in IT development, AI, design, sales, marketing, admin, and customer support, our developers stand out for their rigorous vetting and diverse technical proficiencies. Ranging from seasoned experts with over a decade of experience to skilled mid-level professionals, they excel in languages like JavaScript, Python, and React, tackling complex projects with precision.
  • Hailing from various regions, including Europe, LatAm, Israel, and the United States, our developers offer a global perspective, ensuring adaptability and high-quality work across industries.

Each profile reflects a commitment to excellence, validated through thorough technical assessments and communication evaluations, making them reliable partners for any project.

PHP 5yr.
JavaScript 5yr.
TypeScript 1yr.
Solidity
Laravel 5yr.
Bootstrap 4 4yr.
Nginx 4yr.
Flask-restful 4yr.
Ajax 3yr.
jQuery 3yr.
GitLab CI 3yr.
Tailwind CSS 1yr.
Web3.js 1yr.
MariaDB 1yr.
BitBucket 1yr.
Github Actions 1yr.
Phantom 1yr.
SASS
React
Vue.js
PHPUnit
Vanilla JS
MySQL
Redis
AWS EC2
AWS S3
AWS SES (Amazon Simple Email Service)
Git
GitLab
Brownie
Hardhat
OpenZeppelin
Docker
Docker Compose
GRPC
Selenium
RESTful API
SOLID
Git Lab
Protobuf
...

-Software Engineer with 5 years of professional experience, working across eCommerce & retail, Marketplace, Healthcare, Entertainment, Education, and Blockchain, Game domains. -Proficiency in PHP, JavaScript, TypeScript, React - Knowledge of Vanilla JS, Native PHP, PHP-Selenium - Experience working with Web3 marketplaces, nodes, on-chain, and off-chain transactions - Knowledge of Web3, understanding of Abi, Smart Contracts; Tampermonkey, Greasyfork - Knowledge Css3, Bootstrap 4; RPC; GitHub; MySQL - Has a successful track record of developing applications from scratch and optimizing existing systems, evidenced by projects such as a Learning Platform, Event Manager, and a Website for a Coin Game - Computer Science and Software Engineering Foundation

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Seniority Middle (3-5 years)
Location Poland
Python
NumPy
Django
FastAPI
Flask
Pandas
pytest
React
AWS DynamoDB
MongoDB
MySQL
PostgreSQL
SQLAlchemy
AWS
GCP
AWS API Gateway
AWS Boto3
AWS CLI (Amazon Command Line Interface)
AWS CloudWatch
AWS Lambda
AWS S3
GCP Storage
Atlassian Trello
Jira
GraphQL
OAuth
RESTful API
Swagger
Celery
RabbitMQ
CI/CD
kubectl
Docker
Kubernetes
Terraform
Git
Kanban
Scrum
Linux
macOS
Windows
Cloud Storage
Elastic
NGNIX
...

- Software Engineer with more than 5 years of commercial experience in software development - Interested in cloud computing, software architecture design, and efficient algorithms - Deep knowledge of Web development technologies - Excellent knowledge of common software engineering practices, like OO principles, modern design patterns, test-driven development, continuous integration, and continuous deployment - Extensive experience in building architecture and database optimization - Extensive experience in mentoring specialists, making code review - Quick learner, team player, goal-oriented and responsible. - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Poland
JavaScript
TypeScript
Angular
Express
NestJS
Node.js
Vue.js
Angular Material UI
LoopBack
AWS ElasticSearch
MongoDB
PostgreSQL
Redis
AWS
GCP
Algolia
CI/CD
Jenkins
Docker
Kubernetes
GitHub
GitLab
GraphQL
RESTful API
GRPC
WebSockets
Kafka
RabbitMQ
...

- Software Engineer with 5+ years of commercial experience building software from scratch; - Good knowledge of main clean code principles like DRY, SOLID, YAGNI, KISS; - Have experience building software solutions from the ground up: from discussion with clients or businesses to understand the problem, field of study and problem research, to deployment and post production support. - Upper-Intermediate English. - Available ASAP.

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Seniority Senior (5-10 years)
Location Ukraine
Project Management
Marketing 2yr.
Content Creation 2yr.
Discord Management 2yr.
Social Media Management 2yr.
TikTok Management 1yr.
3D Animation 1yr.
UI/UX Design 1yr.
3D Modelling
UI/UX
Unity
Web3
Copywriting
Game Design
Illustration and icons
Immersive Experience Design (AR/VR/MR/Metaverse)
Interior Design
Mobile Game Development
Product Design
Publication and Typographic Design
Scrum Leadership
Service Management
...

- Position: Project Manager (PM) with Knowledge of French - Educational Background: Master's degree from IAE Lyon, with specialization in international business development, strategic management, and marketing. - Project Management Experience: Managed engineering vehicle projects and marketing initiatives at renowned companies such as Daimler AG, Renault Group, and PSA Group. - Strategic Insights: Coordinated strategic projects focused on customer satisfaction across markets and headquarters. - Market Analysis Expertise: Conducted an in-depth study of the German automotive insurance market. - Technical Proficiency: Analyzed vehicle development projects and processes, ensuring alignment with organizational objectives. - Native French - Fluent English

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Seniority Middle (3-5 years)
Location Lyon, France
Solidity
Haskell
SalesForce Workflow
Qlik Sense
SQL
Blockchain
Git
Jira
My Requests65
...

- Highly Professional Software Engineer with 7+ years of expertise in QlikView and over 2 years of hands-on experience in the blockchain industry. - Proficient in Solidity and DAML Smart Contracts, he possesses a strong command of blockchain technologies. - With developed analytical and problem-solving skills, Oleg excels in identifying efficient software solutions to complex challenges. - He consistently meets project requirements and delivers results within deadlines. - Upper-intermediate English.

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Seniority Senior (5-10 years)
Location Ukraine
Rust 3yr.
TypeScript 2yr.
Solidity 2yr.
Docker Compose 4yr.
Python 3yr.
AWS SQS 3yr.
Github Actions 3yr.
JavaScript 2yr.
AWS DynamoDB 2yr.
Tokio 2yr.
Terraform 2yr.
GitLab CI 2yr.
SOLID 2yr.
Actix Web 1yr.
Express 1yr.
Node.js 1yr.
CouchDB 1yr.
MongoDB 1yr.
Hyperledger 1yr.
Helm 1yr.
Jenkins 1yr.
Kafka 1yr.
Ethers.js
Web3.js
Anchor
EIP
ERC-1155
ERC-20
ERC-721
Ganache CLI
Hardhat
IPFS (InterPlanetary File System)
Web3
API
Slither
Solhint
SPL
Waffle
...

Blockchain Developer and Software Engineer with over 5 years of hands-on experience. Skilled in multiple key programming languages including Rust, Solidity, Python, JavaScript, and TypeScript, and proficient in English with a B2 level. Holds a comprehensive education in Computer Science and Software Engineering. Technical expertise is demonstrated in diverse blockchain environments like Ethereum, Polygon, and Solana, including advanced skills in smart contracts development, security optimizations, and integration of various blockchain technologies. Proven track record in backend development with frameworks such as Django and Node.js, cloud services like AWS, and proficiency in DevOps tools such as Docker, Kubernetes, and Terraform. Successfully improved deployment speeds by 40% through Helm charts and bolstered smart contract security to mitigate 95% of exploit vectors. Combines a passion for programming with effective leadership and project management abilities which contributes to technological advancements and project success.

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Seniority Senior (5-10 years)
Location Georgia
Ruby
Node.js
Go
PHP
Java
Python
OpenAI
LESS
SASS
Azure
Atlassian Trello
Kubernetes
WebSockets
...
Seniority Expert (10+ years)
Location New York City, United States
JavaScript 3yr.
TypeScript 3yr.
Rust 3yr.
Solidity 3yr.
Solana
CSS 3yr.
HTML 3yr.
C 2yr.
Lodash 2yr.
Axios 2yr.
Nlog 1yr.
Webpack 1yr.
MySQL 1yr.
Chai 1yr.
Foundry 1yr.
Substrate 1yr.
Mocha 1yr.
Postman 1yr.
JWT.Net 1yr.
Waffle 1yr.
Material UI
SASS
Styled components
Entity Framework
React Router
Kibana
Atlassian Confluence
GitLab CI
BitBucket
Yul
Docker
Google Maps API
Swagger
Web API
Logstash
Chakra UI
NAudio
sfsm
...

Software engineer with a comprehensive background in full-stack and blockchain development. Proficient in languages like Rust, Solidity, TypeScript, C#, and C++, with 3 years in JavaScript and Solidity. Strong focus on blockchain ecosystems, having utilized Solidity, Ink!, and Substrate across various innovative projects, including a SPL-token creation using Solana and a cybersecurity platform for Earth satellites leveraging blockchain tech. Experienced in both front-end and back-end paradigms, employing .NET 7, ASP.NET, and React, and tools like Docker and Swagger for deployment and API management. Responsible for leading the development of complex web3 applications, such as a staking platform and a branded shoe online store, showcasing a strong understanding of SDLC, including testing with tools like Hardhat and Foundry. The engineer's project roles demonstrate an ability to handle full-stack responsibilities and a proven track record in delivering robust, scalable applications in diverse domains such as game development, e-commerce, and NFTs.

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Seniority Middle (3-5 years)
Location Georgia
Marketing strategies
Atlassian Confluence
FDD
Hack
Google Analytics
Google Spreadsheets
Ahrefs
Amplitude
Jira API
Mentor Aptitude
SwiftPM
Brand24
Hotjar
Sales strategies
Similarweb
Voluum
...

- Expert in creating and leading tech-driven blockchain and fintech solutions with robust marketing and strategic prowess; - Oversaw development and strategic planning as CEO of a self-developed platform; - Expertise in managing sizeable teams, particularly with a team of 8, driving product growth and optimizing marketing budgets; - Deep skills led initiatives in various acquisition, retention, and branding strategies, with experience across multiple international markets; - Deep understanding of HTML5, CSS, and growth-hacking techniques, underscoring a commitment to technical and user-experience excellence; - Experience in consulting web3 projects that raised investment rounds through token sales: 1. Web3 gaming platform raised $400k in 2 rounds (pre-sale, sale through launchpads). 2. Dex exchange ~$100k in one round of sale. - Created company from idea to full function product(2022-2023); - Company growth from 20k to 1 million USD FTD/month; - Max 1 month ROI=1361% (12/2017); - Optimized marketing budget in 2 times as effective (05/2019).

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Seniority Senior (5-10 years)
Location Thailand
Data Scraping
NFT marketplace
Marketing research
Marketing strategies
Web3
VBScript
Apartment (Ruby)
NativeJS
Business Analysis
Celonis
Data Analysis
Data visualization
Google Analytics
Power BI
Data Lake
MongoDB Compass
MS SQL Server Management Studio
DigitalOcean
Microsoft Azure API
Advertising
seo
Active Directory
Atlassian Confluence
Jira
Collections API
YouTube API
FDD
MVC
Smart Contract
QA Automation
Quadient Automation
Research Skills
Business development
Customer Service
Digital Marketing
Marketing Automation
Planning and Coordination
PPC
Relational
SAP Price Integration
SMM
Social Media Marketing
Team Leadership
...

- With over 12 years of growth marketing experience and 4+ years of specializing in web3 companies, brings hands-on expertise across diverse crypto verticals including exchanges, online casinos, crypto products, b2b solutions, and P2E gaming. - Data-driven marketing strategies have delivered proven results for blockchain startups and web3 companies targeting key geographies like the USA, Europe, China, Philippines, former Soviet Union countries, the UK, Australia, Canada, the specializing Middle East, and Scandinavia. - As a strategic marketing leader, exceling at capturing attention, building trust, and accelerating revenue across these global markets. - Analytical approach couples creative thinking with rigorous optimization across acquisition channels, empowering brands to scale strategically. - Collaboration with multiple blockchain projects double their business, increase revenue by millions, and rapidly grow users in target regions through my nuanced understanding of local cultures and buyer mindsets.

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Seniority Expert (10+ years)
Location France
Solidity 6yr.
Python 3yr.
ETH (Ethereum blockchain) 3yr.
DAO 3yr.
Azure Blockchain 6yr.
ERC-20 6yr.
Git 6yr.
AWS API Gateway 5yr.
AWS CloudWatch 5yr.
AWS S3 5yr.
Smart Contract 5yr.
Wallets (Integration & Transaction Signing) 5yr.
Alembic 4yr.
SQLAlchemy 4yr.
EIP 4yr.
ERC-721 4yr.
Ganache CLI 4yr.
IPFS (InterPlanetary File System) 4yr.
OpenZeppelin 4yr.
Uniswap 4yr.
Slither 4yr.
Solhint 4yr.
JavaScript 3yr.
ES6 3yr.
Mongoose 3yr.
Node.js 3yr.
Typeorm 3yr.
AWS ECR 3yr.
Hardhat 3yr.
Embedded C++ 3yr.
Pydantic 2yr.
Web3.js 2yr.
FastAPI 2yr.
Avalanche 2yr.
Polygon 2yr.
BitBucket 2yr.
Helm 2yr.
Kubernetes 2yr.
windows rds 2yr.
Express 1yr.
NestJS 1yr.
Flask 1yr.
AWS DynamoDB 1yr.
MongoDB 1yr.
PostgreSQL 1yr.
Azure 1yr.
RESTful API 1yr.
Celery 1yr.
Kafka 1yr.
Jest 1yr.
Waffle 1yr.
SSV.Network
...

- Experienced Blockchain Developer / Software Engineer with 6 years of experience in crypto financial and DeFi domains. - Proficient in programming languages such as Solidity, Python, and JavaScript. - Strong expertise in blockchain technologies including Uniswap, Ethereum, Polygon, SSV.Network, and wallet integrations. - Skilled in backend development using frameworks like FastAPI, Flask, and Node.js. - Familiar with message brokers like Kafka and cloud platforms like AWS and Azure. - Proficient in DevOps tools like Docker, Kubernetes, and Helm. - Experienced in working with databases like PostgreSQL, MongoDB, and DynamoDB. - Strong knowledge of source control systems like Git, Bitbucket, and GitHub. - Demonstrated ability to design REST API schemas and architect DAO systems. - Proven track record in blockchain development, smart contract optimization, and security audits. - Experienced in setting up and configuring network parameters and implementing identity and access controls. - Proficient in setting up CI/CD pipelines and conducting code reviews. - Skilled in implementing and managing smart contracts compliant with relevant laws and regulations. - Experienced in optimizing storage and computation within smart contracts to minimize transaction costs. - Strong knowledge of SDLC, software development practices, and software engineering principles. - Excellent communication and team collaboration skills. - Computer Science and Software Engineering education background. - Proven ability to find common language with the team and lead on various projects.

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Seniority Senior (5-10 years)
Location Georgia
TypeScript 5yr.
React 5yr.
Redux 3yr.
Solidity 2yr.
DAO
Ethers.js 2yr.
Hardhat 2yr.
OpenZeppelin 2yr.
BitBucket
Git
Github Actions
GitLab CI
Microsoft Visual Studio Code
WebStorm
...

- Software engineer with 5+ years of experience in computer science and software engineering. - Proficient in JavaScript, TypeScript, and Solidity programming languages. - Extensive experience in frontend development using React, Redux, Zustand, and other related libraries. - Deep knowledge of blockchain technologies, including Hardhat, ethers.js, and OpenZeppelin. - Skilled in project management, with experience in developing decentralized applications and smart contracts. - Familiar with software development methodologies such as Scrum and Kanban. - Strong problem-solving and team-working skills, always ready to learn new technologies and take on new challenges.

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Seniority Senior (5-10 years)
Location Georgia
Smart Contract 5yr.
React 2yr.
DAO
Solidity
Azure Blockchain 5yr.
Crashlytics 2yr.
AWS 2yr.
3D Modelling 2yr.
SOLID 2yr.
JavaScript
Rust
TypeScript
NestJS
Next.js
Node.js
Redux
Firebase
Blockchain
Polygon
Solana
Web3
Online crypto payments 3D modelling
...

Strong software engineer with 5 years of experience in blockchain development; - Proficient in TypeScript, JavaScript, Web3, and various blockchain technologies such as Rust/Solana, and Polygon/Solidity; - Skilled in smart contract development, DAO implementation, and blockchain integration with web applications; - Experienced in building decentralized applications (dApps) and NFT marketplaces; - Knowledgeable in implementing online crypto payments and blockchain-based gaming systems; - Familiar with AWS, Firebase, and other cloud services for scalable and secure application development; - Achievements include implementing tokenized player trading, decentralized tournaments, and interactive NFT marketplaces; - Strong problem-solving and troubleshooting skills with a solid understanding of browser and web concepts.

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Seniority Senior (5-10 years)
Location Germany
Java 5yr.
Solidity 3yr.
ETH (Ethereum blockchain) 3yr.
TypeScript 2yr.
Node.js 1yr.
Docker 5yr.
Docker Compose 5yr.
JUnit 5yr.
Mockito 5yr.
Spring Core 4yr.
Spring Data 4yr.
Spring 4yr.
Spring Boot 4yr.
MongoDB 4yr.
PostgreSQL 4yr.
AWS Security Groups 4yr.
Lombok 3yr.
MapStruct 3yr.
Hibernate 3yr.
Flyway 3yr.
Liquibase 3yr.
AWS EC2 3yr.
EOS 3yr.
ERC-1155 3yr.
ERC-20 3yr.
ERC-721 3yr.
Hardhat 3yr.
OpenZeppelin 3yr.
Polygon 3yr.
BitBucket 3yr.
Git 3yr.
Swagger 3yr.
Proxies 3yr.
Slither 3yr.
Solhint 3yr.
Ethers.js 2yr.
Web3.js 2yr.
Alchemy 2yr.
MetaMask 2yr.
Sushiswap 2yr.
Wallets (Integration & Transaction Signing) 2yr.
EJB 1yr.
Java EE 1yr.
Java Servlets 1yr.
JDBC 1yr.
JMS 1yr.
JSF 1yr.
JSTL 1yr.
Primefaces 1yr.
JSP Liferay 1yr.
...

- Software Engineer with 5 years of experience in building web applications and expertise in blockchain, DeFi, NFT, and tokenization domains. - Proficient in programming languages such as Solidity, Node.js, Python, and Java. - Experienced in back-end development using technologies like Spring, Hibernate, and JDBC. - Skilled in working with blockchain technologies including Ethereum, ERC721, ERC1155, and EIP712. - Familiar with CI/CD tools like Jenkins and containerization platforms like Kubernetes and Docker. - Strong knowledge of database management systems like PostgreSQL, MySQL, and MongoDB. - Well-versed in agile methodologies like Scrum and Kanban, with a solution-oriented approach to project objectives.

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Seniority Senior (5-10 years)
Location Poland
Python 4yr.
ETH (Ethereum blockchain) 3yr.
Rust 2yr.
DAO 2yr.
EIP 5yr.
ERC-20 5yr.
OpenZeppelin 4yr.
Smart Contract 4yr.
Uniswap 4yr.
Web3 4yr.
Hard Hat 4yr.
Waffle 4yr.
IPFS (InterPlanetary File System) 3yr.
Actix Web 2yr.
MongoDB 2yr.
Tokio 2yr.
Truffle 2yr.
Diesel 2yr.
Slither 2yr.
Solhint 2yr.
...

- Blockchain developer / Software Engineer with 5 years of experience in the field. - Proficient in programming languages such as Solidity, Rust, and Python. - Extensive knowledge and experience in blockchain technologies including Ethereum, Optimism, Waffle, Truffle, and Ganache. - Skilled in backend development using frameworks like Django, Django Rest Framework, and FastAPI. - Experienced in working with databases like PostgreSQL and MongoDB. - Proficient in cloud services and DevOps tools such as AWS, Docker, and Docker Compose. - Strong expertise in version control systems like Git and collaboration platforms like Bitbucket and GitHub.

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Seniority Senior (5-10 years)
Location Georgia
Node.js
PHP
Go
JavaScript
ES6
Mongoose
Express
NestJS
AWS DynamoDB
Clickhouse
MongoDB
MySQL
PostgreSQL
Redis
GCP
AWS Cloudformation
AWS Cognito
AWS EC2
AWS Lambda
AWS RDS (Amazon Relational Database Service)
AWS S3
AWS SAM
AWS SQS
AWS VPC
Atlassian Confluence
Jira
Clean Architecture
FDD
Kanban
Scrum
SOLID
TDD
Docker
Terraform
Git
GraphQL
Jest
RabbitMQ
Web3
WebSockets
Building Cloud-based solutions
...

- More than 8 years of professional experience in backend development. - Proficiency at application architecture principles (including SOLID / DDD / DRY / KISS). - Understanding and efficient usage of design patterns. - Extensive experience in designing and implementing Cloud-based solutions across various delivery methods (SaaS, PaaS, IaaS), enhancing scalability, flexibility, and cost-efficiency. - Project/ tasks estimation (concept-based, milestone, roadmap, detailed). Agile / Scrum / Kanban (both team management & development). - Test-driven development (real unit- & acceptance- tests usage everyday). - High load optimization (both game backend and enterprise system solutions).

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Seniority Architect/Team-lead
Product Manager
Delivery Management
PHP
Business Analysis
Google Analytics
Power BI
Tableau
SQL
Banking
retail
Amplitude
CAC
Data Models
Functional Design
Hypotheses validation
LTV
Marketing Manager
Marketing research
MVP
Product Roadmaps
Project Management
API
API testing
Postman
CEX
DeFi
GameFi
Launchpad
NFT
Staking
Wallets (Integration & Transaction Signing)
Office 365
UI/UX
UX
Documentation
...

- Strong abilities working as Head of Projects Managers in a large technological company with several products; - Product manager with experience in NFT, GameFi, and FinTECH projects. - Nearly 11 years in IT domain positions like - Business Analyst, Project Manager, Product Manager, Marketing Manager, and PHP coder; - Strong skills working as a Delivery Manager; - In-depth knowledge of creating roadmaps and launching MVPs of blockchain projects; - Deep Experience with DeFi projects and Centralized Exchanges; - Good knowledge of creating and launching versions of launchpad, staking, and mobile crypto wallet for blockchain projects; - Experience in building teams and managing different types of projects to the market launch; - Work experience in creating the optimal product structure of the project; - Good skills in creating complete project documentation; - Experience in creating and launching a project brand; - Upper-Intermediate English; - Available: ASAP.

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Seniority Senior (5-10 years)
Location Turkey
PHP
Laravel
...

Alexander P. is a PHP developer with experience in building and supporting websites using PHP based frameworks. He has a Master's Degree in Information control systems and technologies. Some of his key technical skills include PHP, MySQL, REST, Laravel, WordPress, JavaScript, jQuery, AJAX, Vue.js, Git, XML, HTML, CSS, CI/CD, Docker, Google APIs, and Facebook API. He has worked on projects such as an online marketplace for booking event spaces, a CRM system for managing claims and vehicle repairs, and an iOS/Android application for meeting. Alexander has a strong background in software engineering and computer science education, with several years of experience in the field. He is proficient in various programming languages, technologies, and tools, and has experience with different methodologies, principles, and patterns in software development. Alexander's technical expertise and domain knowledge make him a standout candidate for software engineering positions.

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Seniority Middle (3-5 years)
Location Kharkiv, Ukraine
Angular
JavaScript
TypeScript
Bootstrap
CSS
HTML
SASS
Ionic
NPM
Redux
RxJs
Webpack
Firebase
MongoDB
MySQL
Agile
Scrum
Atlassian Trello
Jira
Docker
Figma
RWD(Responsive Web Design)
Git
JWT
RESTful API
macOS
Windows
...

- Self-motivated and result-driven front-end developer with 5+ years of experience - Skilled in Angular and JavaScript, with extensive experience in their development and ecosystem - Strong ability to write clean code, debug performance issues, and implement features based on client and user needs - Possesses good logical thinking and a high level of responsibility - Excellent attention to detail and ability to work well in a team - Proficient in various programming languages and technologies such as JavaScript, TypeScript, HTML, CSS, SASS, Angular 2+, npm, Webpack, Redux, Rest API, RWD, Figma, Bootstrap, rxJS, docker, ionic, firebase, and JWT - Experienced in working with databases like MongoDB and MySQL, and familiar with source controls like GIT and tracking systems like Jira and Trello. - Intermediate English - Availability starting from ASAP

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Seniority Middle (3-5 years)
Location Poland
Product Manager
Project Management
CSS
HTML
Google Analytics
Airtable
MySQL
PostgreSQL
AWS
Google Docs
Banking
Agile
Atlassian Confluence
Atlassian Trello
Jira
Miro
Notion
Bash
CLI
CEX
DeFi
Staking
Draw.io
Figma
Mindmeister
Excel
Git
Kubernetes
Postman
Zeplin
Swagger
Documentation
Utrack
...

- 9+ years of experience in IT; - Experience working with Blockchain products; - Deep knowledge and skills in development of fintech products (CeFi/DeFi); - Work experience with Development and work on UI / UX design, and web programming (HTML, CSS); - Familiar with logic controller and CNC machine programming; - Experience in project management and sales - Good skills in organizing the work process in a team using Agile methodology; - Good understanding and vision of product development and its design solution; - Upper-Intermediate English; - Available ASAP.

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Seniority Senior (5-10 years)
Location Ukraine
Scrum
DevOps
Agile
QA
Backend
...

- 10+ years overall of experience in IT - Management: Change management, Program management, Project management, Account management - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Iasi, Romania
Payment Gateways 5yr.
WordPress 5yr.
Laravel 7-9 3yr.
Unity 2yr.
Ant Design 1yr.
...

Developer

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Seniority Expert (10+ years)
Location Caracas, Venezuela
Java
JavaScript
Solidity
Apache Camel
Java EE
Java Server Pages (JSP)
JDBC
JOOQ
JPA
JSF
JSON
Ethers.js
Ext JS
React
Hibernate
Spring
HTML
XML
Microsoft SQL Server
MySQL
Oracle Database
PostgreSQL
SQL
Docker
Eclipse
IntelliJ IDEA
Radhat
Web3
Kafka
RabbitMQ
macOS
Windows
WebSockets
...

- 3+ years of experience in the IT industry as a Java Software Engineer - Upper-Intermediate English - Upper-Intermediate German - Available ASAP

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Seniority Senior (5-10 years)
Location Ukraine
ETH (Ethereum blockchain)
Binance
BSC
Tron
Java
JavaScript
Kotlin
Solidity
CSS
HTML
Nightwatch.js
Node.js
React
Remix
Appium
Applitools
Cucumber
Cypress
Gherkin
Jest
REST-Assured
Selenide
Selenium Webdriver
Selenoid
SoapUI
WebdriverIO
Axios
Bash
PowerShell
BEP-20
Binance Wallet
Coinbase wallet
DeFi
ERC-20
ERC-223
ERC-777
Etherscan
Ganache CLI
Hardhat
MetaMask
NFT
OpenZeppelin
Smart Contract
Tronbox
TronLink
Tronscan
Truffle
Docker
Bscscan
Ranorex
TRC20
Trezor
Truffle suite
...

- 10+ years of IT industry - Highly skilled software engineer with experience leading operations in software development projects. - Proficient in project management methodologies including Agile development with a focus on reducing costs and shortening process times. - Upper-intermediate English - Available ASAP

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Seniority Senior (5-10 years)
Location Lviv, Ukraine
DeFi
NFT
Creative Product
Product Marketing
Product Strategy
Program Operations
Project Management
ROI
Scrum Master
DAO
Decentralization
Metaverse
Polkadot
Web3
Figma
Keynote
UX
Slack
...

- 12+ years of experience. - Present talks, explain and give classes about web3 concepts and integrations for blockchain, NFTs, cryptocurrencies, and metaverses. - Bridged the gap between Product/Product Marketing providing data for ‘wants vs. needs’ of dev community for product development. - Executed production strategies and campaigns to more than 500 million users worldwide for all content available on Google Play store. - Led the product development for a multi-million dollar mobile Disney game planning sprints and restructuring the entire project. - Directed product development at five tech and game startup companies simultaneously while getting a Master of Science degree. - Led development of ground-breaking web projects at my own startup using custom-built systems and advanced API integrations. - Upper-intermediate English. - Available ASAP.

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Seniority Senior (5-10 years)
Location Ecuador
Product Management
C
C++
JavaScript
PHP
Python
Solidity
HTML
React
Business Intelligence (BI) Tools
SQL
AUTOSAR framework
DeFi
ETH (Ethereum blockchain)
NFT
Smart Contract
Labview
MatLab
Simulink
Wildfire Pro
CAD/CAM
CFD
Dassault Systemes Catia
DaVinci Developer
FTC
Mathworks Polyspace
SIMTG
...

Product manager with experience in blockchain development, smart contracts, oracle authenticity, and also creation, implementation, and development of NFT products. - Solid knowledge of blockchain and smart contract. - Strong NFT project management skills. - 10+ years of experience. - Fluent English. - Available ASAP.

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Seniority Senior (5-10 years)
Location Pawtucket, United States
Blockchain
C
C++
Go
JavaScript
Rust
Solidity
TypeScript
CSS
HTML5
Material UI
Tailwind CSS
Ethers.js
Web3.js
Express
Next.js
Node.js
React
MongoDB
MySQL
AWS
Azure
GCP
Atlassian Trello
Jira
CI/CD
Jenkins
Cosmos SDK
CosmWasm
Cryptography
DeFi
ETH (Ethereum blockchain)
NFT
OOPS
Polkadot
Smart Contract
Substrate
Docker
Kubernetes
Git
GraphQL
RESTful API
GRPC
Kanban
Scrum
...

- A technology professional with 5+ years of experience in the blockchain industry, I specialize in the development of secure and reliable distributed ledger applications and smart contracts. - I am highly skilled in Ethereum, Aptos, Polkadot, and other distributed ledger technologies. Additionally, I have experience building and managing blockchain networks, developing core components and custom modules, deploying and operating blockchain nodes, and creating BaaS functionality for enterprise customers. My skillset also includes working with Solidity, Golang, Rust, Move, Cosmos SDK, CosmWasm, DeFi, DEX, and Multi-Chain Metaverse. - Try to learn new things and update your knowledge. Committed to the clients and always work with 100% client satisfaction.

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Seniority Architect/Team-lead
Location Oulu, Finland
Solidity
NFT
Smart Contract
C#
JavaScript
ASP.NET
ASP.NET MVC Pattern
.NET
CSS
HTML
jQuery
XML
XSL
Ethers.js
Next.js
Node.js
React
SalesForce Workflow
Microsoft SQL Server
Alchemy
DeFi
ERC-20
ETH (Ethereum blockchain)
EVM
Ganache CLI
Hardhat
ICO
Infura
IPFS (InterPlanetary File System)
MetaMask
OpenZeppelin
Truffle
Web3
API
PowerShell
Product Management
Visual Studio
Custom Fields JavaScript
SkyNet
TFS 2013
Web Parts
...

- Developer with 18+ years of experience in large IT companies , with Bachelor’s Degree in Systems Analysis and Blockchain Engineer training. - Developer of Smart Contracts and tokens since 2017 (Solidity -EVM ) and a great enthusiast participant in the world of cryptocurrencies since 2014. - Data Science Academy Mentor in 2020. - Advanced English. - Available ASAP.

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Seniority Senior (5-10 years)
Location Brazil
Scrum
Agile
AI
VBA
Salesforce
Business Intelligence (BI) Tools
Decision Tree
ML
Data Warehouse
Acceptance Criteria
Communication Skills
Conceptualisation
Cross-functional Team Management
Design Thinking
Facilitation
Feedback Collection
Marketing research
MVP
Prioritisation
Problem Solving
Product Frameworks
Product Metrics
Product Roadmaps
Release Management
Retrospectives
Self Management
Stakeholder Management
Kanban
SDLC
User Stories
Atlassian Confluence
Jira
DeFi
Metaverse
NFT
Research Skills
UI/UX
User Interviews
Wireframes
Business Glossary
Go-Live
Kalido
Metadata Discovery
Siebel
...

Product manager with experience in NFT project. - Almost 9 years of diverse experience in tech: Product Management, Agile Project Management and Business Analysis. - Upper-intermediate English. - Available ASAP

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Seniority Senior (5-10 years)
Location Melbourne, Australia
Solidity
JavaScript
Ethers.js
Node.js
Vue.js
Chai
Hardhat
Truffle
Web3
Mocha
Unit Testing
...

- Development and security audit of smart contracts for EVM compatible blockchains. - Deep experience in the development of NFT (ERC721/1155) tokens and in the Defi industry. - Upper-intermediate English. - Available ASAP.

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Seniority Middle (3-5 years)
Location Portugal
Solidity
Go
JavaScript
Electron
Node.js
React
Android
dApps
ETH (Ethereum blockchain)
Fantom
GameFi
NFT
NFT marketplace
Smart Contract
iOS
...

- Been in Crypto space since 2017 and contributed to several DeFi and NFT projects on EVM chains. - Have deep understanding about most of the DeFi primitives including trading, staking, lending/borrowing, liquidity mining and bonding. - Intermediate English - Available ASAP

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Seniority Senior (5-10 years)
Location Singapore
Unity 5yr.
Solidity 1yr.
C# 5yr.
PHOTON MULTIPLAYER 3yr.
Android Studio 2yr.
C++ 1yr.
Java 1yr.
JavaScript 1yr.
Python 1yr.
React 1yr.
SMARTFOX SERVER 1yr.
AR 1yr.
Hardhat 1yr.
Moralis
Unreal Engine
...

- Experience working with Solidity, and Hardhat; - Good abilities in creating smart contracts for dApps; - Good skills in creating plugins to integrate web3 in unity/unreal space from scratch; - Deep understanding of JavaScript, and React; - 5 years of expertise with Unity; - Experience with 2d/3d/Ar games with unity; - Good skills working with blackened for unity applications; - Experience with Photon, SmartfoxServer, and Nodejs; - Extensive knowledge of creating plugins for unity using Python, C++, and android studio; - English: Intermedidate.

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Seniority Middle (3-5 years)
Location India
iOS
Objective-C
Swift
Linkedin
Push notifications
Firebase
Realm
Banking
Agile
Scrum
Alamofire
AVFoundation
CalendarKit
CallKit
CocoaPods
Cocoa Touch
Core Data
Core Graphics
Core Location
MapKit
SnapKit
TestFlight
UIKit
Asana
Jira
BitBucket
Git
CI/CD
Facebook API
IOS SDK
RESTful API
Twitter API
Figma
XCode
sockets
UI testing
Unit Testing
GCD
Multithreading
...

- 6+ years of experience in iOS development; - In-depth knowledge of iOS SDK; - Experience working with fintech and cryptocurrency projects; - Good knowledge of the development of different mobile projects; - Experience working with Objective-C; - Deep abilities with Swift; - Good skills working with Firebase; - Experience in UI/UX implementation; - Good skills in maintenance and testing; - Upper-Intermediate English.

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Seniority Middle (3-5 years)
Location Ukraine
Solidity
Ethers.js
Web3.js
Next.js
BEP-20
BEP-721
BNB
dApps
DeFi
ERC-1155
ERC-20
ERC-721
ETH (Ethereum blockchain)
Ganache CLI
Hardhat
NFT
OpenZeppelin
Truffle
CLI
Embark
MythX
Slither
...

- Experience working with Solidity; - Good understanding of Blockchain technology; - 3+ years of experience in Smart Contract development; - Deep skills with Hardhat, and Truffle; - Experience working with ethers.js and Web3.js; - Good knowledge of Ethereum, and BNB Chain; - Experience working on dApps, DeFi, and NFT projects; - In-depth abilities in creating and deploying ERC20, ERC721, ERC1155, BEP20, and BEP721 tokens; - Intermediate English.

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Seniority Middle (3-5 years)
Location Kazakhstan
Solidity
Blockchain
C
C++
Go
Java
JavaScript
Python
HTML
Node.js
React
Cybersecurity
DeFi
ETH (Ethereum blockchain)
Hyperledger
Metaverse
NFT
NFT marketplace
Smart Contract
Web3
Linux
Unix
Scripting
...

- 3+ years of experience in Blockchain development; - Good in writing smart contracts - writing multi-threaded codes; - Corda with Fluency in Solidity, Events, and Web3 ( Unix, Linux, scripting); - Good understanding of NFT, NFT Marketplace, and various Defi protocols - Experience in training and mentoring newbies smart contract auditors within the team; - Hands-on experience working on Ethereum and Hyperledger; - Good skills with C, C++, Java, HTML, Javascript, Golang, Node js, Python, React.js; - Knowledge of technical writing and research on Blockchain and Cybersecurity; - Intermediate English.

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Seniority Middle (3-5 years)
Location India
Solidity
Go
Java
PHP
Python
Laravel
Node.js
React
Remix
MySQL
Apache HTTP Server
Avalanche
Chai
Cross Chain Bridges
Cross-chain Swaps
Dapp
DeFi
DEX
ERC-1155
ERC-20
ERC-721
ETH (Ethereum blockchain)
Hardhat
ICO
IPFS (InterPlanetary File System)
NFT
Polygon
Staking
Web3
Mocha
...

- Blockchain Developer with 5+ yrs of experience - Motivated to learn and deploy new technologies to bring transparency, decentralization, security & equality at low cost. - Advance Daaps development: Solidity+Web3(React) - Layer 2 Scaling Solution (Polygon), Avalanche(AVAX) - NFT Marketplace(ERC - 721/1155), Crypto Payment Solutions & DeFi Cross Chain Bridges - ERC-20 Tokens, ICO, DEX, Staking, Swapping - DAO + Multi-Sigs Wallets - Available ASAP

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Seniority Senior (5-10 years)
Location India
Product Manager
NFT
...

-Coins, tokenomics, community -DeFi -Play2Earn -Metaverses -Nodes and testnets -NFT -Analysis of smart contracts, identification of scam types (Regpool, Honeypot, etc.) -Lunchpad operation and private project rounds -Successful cases in trading due to fundamental and technical analysis (spot trading) - Advanced English - Available: ASAP

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Seniority Senior (5-10 years)
Location Vienna, Austria
Ruby on Rails
Solidity
Go
JavaScript
TypeScript
CSS
HTML
Node.js
React
Sidekiq
MongoDB
MySQL
PostgreSQL
AWS
Heroku
AWS SQS
DAO
DeFi
NFT
Docker
Git
...

Acquired a bachelor's degree in Information Systems from UNIVEM in Brazil. Since 2014 work as a Web Developer and since 2021, I have been working closely with Web3 technologies. I always look to broaden my knowledge in the area and enjoy participating in new projects. - 8+ years experience in software development; - 5+ years experience with Ruby on Rails; - 3+ years experience with React / Next; - Experience working on projects related to the NFT marketplace and Web3 integration; - Good skills use Solidity for creating smart contracts (ERC-721 tokens); - Experience working with TypeScript, Go on different blockchain projects; - Worked with projects in the field of DeFi and DAO; - Intermediate English; - Available ASAP.

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Seniority Senior (5-10 years)
Location Sao Paulo, Brazil
Product Manager
JavaScript
PHP
Python
Scala
Node.js
Google Analytics
GTM
Tableau
Firebase
MongoDB
MySQL
SQL
Google BigQuery
Agile
Asana
Atlassian Trello
Basecamp
Jira
ETH (Ethereum blockchain)
Hyperledger
Solana
Excel
Visual Studio
Figma
Typeform
GNU
Linux
macOS
Unix
Windows
Hotjar
...

- 7+ Year Experience of leading teams and developing products. - Led teams of 5 to 60 people across technology, business, marketing and design. - Proficient in Design and Prototyping tools, specially Figma, Familiar with Data visualization, Agile Development, Business Analysis, Software development life cycle(SDLC), A/B Experimentation - Search Engine and AdSense Optimization, Social Media Marketing tools, Flask, Latex - Upper-Intermediate English. - Available ASAP

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Seniority Senior (5-10 years)
Location India
Solidity
Node.js 3yr.
Go
Python
Brownie
ETH (Ethereum blockchain)
Hyperledger
OpenZeppelin
...

- A dedicated and goal-oriented individual with 3+ years of experience in the field of blockchain research and development; - Developed a blockchain prototype application that helps track the expenditure of public funds; - Conducted workshops, seminars, and webinars for students and professionals on various blockchain technologies; - Developed blockchain smart contracts for a central government-funded vaccination supply chain management project using Solidity; - Available: ASAP.

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Seniority Middle (3-5 years)
Location India
React 5yr.
PHP 5yr.
Node.js 4yr.
Laravel 4yr.
Python 3yr.
TypeScript 3yr.
Angular 3yr.
Next.js 3yr.
AWS 3yr.
Azure 3yr.
Netlify 3yr.
Vue.js 2yr.
Cypress 2yr.
Jest 2yr.
Shopify 2yr.
WordPress 2yr.
Web3 2yr.
three.js 1yr.
FastAPI 1yr.
Ionic 1yr.
...

- Web Developer for 6 years in both Front-end and Back-end web development. - Good experience in Blockchain and solidity. - Upper-Intermediate English. - Available ASAP.

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Seniority Senior (5-10 years)
Location Kamloops, Canada
Vue.js
Redux
C
C#
C++
Go
JavaScript
Rust
Solidity
TypeScript
Bootstrap
LESS
SASS
Tailwind CSS
Django
Ethers.js
Web3.js
Express
GatsbyJS
Next.js
Nuxt
React
MongoDB
NoSQL
DAO
DeFi
ERC-1155
ERC-20
ERC-721
ERC-777
ETH (Ethereum blockchain)
Hardhat
MetaMask
NFT
NFT marketplace
OpenZeppelin
Solium
TestNet
Truffle
Web3
...

- Acquisition of global web development expertise for 7 years, possessing the ability to overcome pressure and stressful conditions, 3 years of architecture and design technology in a wide range of blockchain fields including Dao, Defi and NFT - Advanced English - Available ASAP

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Seniority Senior (5-10 years)
Location Brandon, Canada
Solidity
JavaScript
TypeScript
Ethers.js
Node.js
React
Chai
Hardhat
Truffle
Web3
...

- 4 years of experience in Ethereum blockchain and Solidity programming. - 2 years of experience in C , Python programming. - Highly professional blockchain developer with comprehensive accomplishments applying high-security smart contracts to ensure success and achieve goals. - Strong experience in EVM-compatible smart contracts development. Demonstrated success developing and seamlessly executing smart contracts in complex DeFi and DEX structures. - Upper-Intermediate English - Available ASAP

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Seniority Middle (3-5 years)
Location Bauru, Brazil
NFT marketplace
BSC
DeFi
NFT
...

- Helping shape the fast growing blockchain industry.- Digital Assets- Consulting- Native English

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Seniority Senior (5-10 years)
Location Ireland
React
Web3
JavaScript
PHP
TypeScript
Angular
AngularJS
jQuery
Vue.js
CSS
HTML
JSS
Material UI
SCSS
Styled components
Ethers.js
JSX
Mobx
React Hooks
React Native
React-Saga
React Testing Library
React Thunk
Recoil
Redux
RxJs
Webpack
Laravel
Yii
Firebase
MySQL
SQL
Adobe Photoshop
Sketch
Apache HTTP Server
Nginx
CLI
Docker
WordPress
Git
GraphQL
RESTful API
Jest
JMeter
Postman
...

- Senior software developer with about 7 years of experience - Web applications for crypto finance (including wallet for Ethereum using ether.js (deposit, withdrawal, staking operations) and web3.js (connect Metamask, get balance, withdraw and deposit tokens) - Maintaining web applications with Front-end jQuery, Vue.js, React.js, React Native, Angular.JS, Angular 2+ and PHP Laravel, WordPress - Hands-on experience of both working as a single developer and being a part of big Agile teams.

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Seniority Senior (5-10 years)
Location Kharkiv, Ukraine
DeFi
NFT
ETL
Data Warehousing
SQL
Banking
retail
Agile
Scrum
SOAP
Business planning
Development cycle management
Marketing strategies
Project Management
ROI
Scrum Master
CMS
Dapp
Jira
...

- IT project director and startup founder passionate about the banking, fintech, blockchain industries. - Results-driven Product Manager with forward-thinking approach centered on company success and competitive growth. - Record of success in building successful teams and managing different type of project to the market launch. - Experience on working with DeFi, NFT, dApp, Crypto related project and platform launches over highly volatile market within cross-functional teams. - Successfully launched fintech startup and also managed Scrum development team in largest Sweden Bank data warehouse unit. - 7+ years of experience in IT. - Advanced English.

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Seniority Senior (5-10 years)
Location Riga, Latvia
Node.js
JavaScript
CORS 5yr.
HTTP 5yr.
HTML 1yr.
Docker 1yr.
Kubernetes 1yr.
PHP
TypeScript
Angular
Express
NestJS
React
Bookshelf.js
RxJs
CSS
Laravel
Lumen
Yii
AWS DynamoDB
MongoDB
MySQL
PostgreSQL
Redis
Typeorm
AWS
AWS EC2
AWS Lambda
AWS RDS (Amazon Relational Database Service)
AWS S3
GRPC
DEX
microservices architecture
sendgrid
CSRF
Sendbird
...

- Back-end developer with 6+ years of commercial experience; - 4+ years of experience working with Node.js and Express.js; - Good knowledge of work with AWS, Doker; - 5+ years experience working with CORS; - Skills in working with blockchain projects; - Experience working with the DEX project in the field of DeFi; - Deep understanding of creating DB and API structure and implementing app logic; - Good collaboration with the product team to understand requirements and business specifications; - Highly motivated to do amazing products, like to learn new technologies; - Intermediate English; - Available: ASAP.

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Seniority Senior (5-10 years)
Location Ukraine
Go
AI
OpenAI
Rasa
PHP
Solidity
Temporal
Ethers.js
Express
Node.js
React
Gorilla Mux
GORM
Symfony
Yii
ML
AWS ElasticSearch
MongoDB
MySQL
PostgreSQL
Redis
SQL
AWS
Azure Key Vault
Ansible
Helm
Jenkins
BigCommerce
Magento 2
Cypress
Mocha
Docker
Kubernetes
Terraform
ETH (Ethereum blockchain)
Hardhat
OpenZeppelin
Truffle
Git
GraphQL
OAuth
Jira
Redmine
Kafka
NATS
RabbitMQ
Kanban
Scrum
Linux
BFT
Codeception
go-chi
HashLips
Jetbrains GoLand
Mockery
Mux
Sphinxsearch
...

- Developer with 11+ years of experience; - Developing web applications using PHP, JavaScript, Golang; - Experience with Blockchain and smart contracts; - Solid experience with MVC architecture-based Web Application Development; - Excellent knowledge of common software engineerings practices, like OO principles, modern design patterns, test-driven development, continuous integration, and continuous deployment; - Experience in building database architecture; - Hands-on experience with writing WEB-services (REST); - Has experience in Architectural approach discussions, design, and decision-making (feature/component level); - Estimation decision-making delivery management cross-team technical communication task; - Extensive experience in mentoring specialists, making code review; - Strong analytical skills, well knowledge of math, high level of responsibility; - Quick learner, team player, goal-oriented and responsible; - Upper-Intermediate English; - Available ASAP.

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Seniority Senior (5-10 years)
Location Ukraine