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.
All
All
Web Application
Data and Analytics
Operations and Cloud
Mobile Application
Digital Platforms
Blockchain
Design and Creative
Quality Engineering and Testing
Delivery Management and Analytics
Desktop Software
Writing and Translation
Marketing and SEO
Scripting and Automation
Embedded Systems
Low-Code
GameDev
Industrial Engineering
Node.js 5yr.
React 3yr.
Solidity
NFT
• 15+ years of commercial software development experience
• Solid knowledge of Solidity, C++, JavaScript, TypeScript;
• Deep understanding of blockchain architecture and smart contract logic;
• Cosmos, Tron, Avalanche, Binance Smart Chain, Ethereum dApps;
• Strong skills in developing NFT smart contracts. Support and payload verification;
• NFT Marketplaces (ERC - 721/1155), Crypto Payment Solutions & DeFi Cross Chain Bridges - ERC-20 Tokens, ICO, DEX, Staking, Swapping;
• Highly qualified knowledge of Stripe payment system integration to blockchain data;
• 10+ years experience working with Python;
• 5 years experience working with Node.js;
• Strong abilities with Express;
• Experience working with Docker, and Kubernetes (K8s);
• 3+ years of development experience with React.js.
• No scheduled vacations within the next 3 months;
Senior
Ukraine
React 6yr.
React Native 2yr.
- 9 years of proven professional expertise in the IT industry;
- Advanced experience in Web Development using JavaScript 7+ years;
- Solid experience in software development using ReactJS and React Native (6+ years); 3 Years with Node.js
- Good experience in Web development using PHP;
- Beginner experience in Web Development using Ruby on Rails;
- Beginner experience in Web Development using Java;
- Upper-Intermediate English
Senior
Ukraine
Tableau 7yr.
- 7 years of commercial experience with Tableau
- 8 years of experience as a BI Consultant, providing data visualization expertise in Tableau, Power BI, Python, SQL
- Created visually compelling and interactive Tableau dashboards for clients in the real estate domain in the US
- Upper-Intermediate English
Senior
Pakistan
AEM
- 14 years of AEM experience in design, development, integration, and delivery of small to large-scale enterprise-level applications.
- An experienced solution architect with a keen interest in business domains, hands-on in technology-based solutions, and a strong focus on delivering measurable value.
- Industry Experience: Vast industry experience covering aviation, telecommunications, media, finance, retail, mutual funds, and services sectors.
- Technical skills: Best-in-class analytical and problem-solving skills with a track record of on-time and within-budget delivery.
- Soft skills: Ability to build strong personal and professional relationships using excellent interpersonal skills.
- E-commerce and AEM Expertise
- Certificated Adobe Experience Architect, Components Developer, ManagerAreas of expertise include:
- Digital transformations including Content Management Systems (CMS) like Adobe Experience Manager (AEM/CQ5).
- Application/Software development right from inception to implementation
- Implementation strategies, planning, and execution
- Agile methodologies such as continuous integration and continuous delivery, features/domain-driven development, extreme programming
- Worked with esteemed customers like ANZ Bank, Old Mutual Group (South Africa), Ford, Farmers Insurance, Aegon Insurance, LaQuinta, Cummins, and AT&T in consulting roles
- Fluent English
Senior
Melbourne, Australia
$55/hr
$8000/month
$8000/month
Python
Django
Flask
- 5 years of experience in the IT industry as a Python Engineer
- Proficient in using technologies such as Django DRF, Flask, Pandas, BeautifulSoup, SQLAlchemy, Asyncio, Flask + Marshmallow, Apscheduler, Jinja, Quip API, Docker, Nginx, Amazon MWS API, Amazon SP-API, Google API, and Telegram API;
- Strong in refactoring, bug-fixing, and working with Python, JavaScript, Django, Django Rest Framework;
- Skilled in developing faceted search and matching algorithms using ElasticSearch;
- Experienced in PDF generation and importing from various formats;
- Developed web applications, API interfaces, and automated scripts for data transformation;
- Previous experience includes working as a Python developer focused on data scraping for Amazon, eBay, and Walmart products in dropshipping projects;
- Also worked as a C# developer on various projects, specializing in web development, scraping, and parsing data;
- Upper-Intermediate English;
- Available ASAP
Senior
United States
$100/hr
$8500/month
$8500/month
Python
C
C++
* 25 years in Israel high-tech (Video, Streaming) , 5 years with Cloud Gaming (Electronic Arts)
* Scalable Video Streaming among LEO satellites (research project of Ben Gurion University)
* Cloud Gaming: encoding, decoding, low latency streaming (e.g. RTP/SRT), error resilience etc.
* Video Codecs: Subcontracting with Visionular on improving coding efficiency of its own HEVC
encoder.
* Subcontracting with DSP-IP - military projects
* Video optimization and hevc codec development (Beamr Imaging)
* Python Programming: development automated testing systems (CI), proofs of concept, computer vision with packages cv2 and cvlib.
* Artificial Intelligence: genetics/evolutionary optimization of video codec parameters, facial expressions detection with CNN.
* 360/VR: subcontracting with Texel (texel.live) - tiled streaming Computer Vision: OpenCV (including python cv2).
* NVIDIA/AMD products: evaluation and modification hw encoders: Tesla T4, A40) of NVIDIA and Navi21 of AMD.
* and several technical papers and several technical papers
Expert
Haifa, Israel
System Architecture
JavaScript
Rust
Go
Java
* Accomplished Solution Architect, Technical manager with 13+ years of progressive experience in architecture design and a comprehensive understanding of project management and software development.
* Orchestrating process implementations, ensuring tasks are completed within strict deadlines and budget, and delivering tangible business benefits.
* Operational expertise includes Strategic Planning, Process Optimization, Change Management, Risk Management, Compliance and Governance, Requirement Analysis, Delivery Management, Process Improvement, Client Engagement and Retention, Business Analysis, A/B analysis, Product strategy developing, Report generating, and Compiling result reports.
* Leadership and Management: Team building, Stakeholder Management, and Conflict Resolution.
Architect/Team-lead
Kyiv, Ukraine
JavaScript 5yr.
Web3.js
React
WebRTC
- 5+ years of experience as a Front-end JavaScript Developer;
- 5+ years of experience in React.js;
- Proficient in Solana Blockchain operations, including managing deposits, executing transfers, creating Phantom wallets, and handling contract call interactions;
- Strong abilities working with Web3;
- Deep experience in Next.js technology;
- Experience with WebRTC, Soket.io;
- Good knowledge of Tailwind CSS, Bootstrap, and Chakra UI;
- Experience working with Redux, and Docker;
- Familiar with Node.js;
- Proficiency in testing frameworks like Jest and Cypress;
- E-commerce, web, and mobile applications, including learning platforms, chatbots, dApps, and cryptocurrency wallet extensions.
Senior
Castel San Giovanni, Italy
JavaScript 4yr.
Vue.js 2yr.
- 3 years of commercial experience, early projects since 2017. (Vue.Js, JavaScript, Chrome extensions)
- Has good knowledge of JavaScript, working with arrays, working with elements, sorting and data algorithms. Good understanding of HTML and CSS.
- Familiar with methodologies, principles, paradigms, and patterns in software development.
- Vuex for state management and Styled Components for styling.
- Rest APIs (Google, NovaPoshta) and Git for version control.
- Tailwind, Figma, and Webpack for UI
- Experienced in using Google Firebase, Cloud Firestore and Authentication.
Junior
Dnipro, Ukraine
Delphi 20yr.
React
Node.js
- Software Engineer with over two decades of experience, specializing in system design, and system integration (System Design, Technical Leadership, System Integration, Scalability, Security, Communication, Documentation);
- Strong abilities with React.js for building, interactive web applications;
- Experienced in Java, Spring Boot, and creating microservices;
- Skilled in Node.js for backend development;
- More than 20+ years of experience with Delphi, Deep knowledge with different versions of Delphi to 10.2;
- Experience with various localisations and Delphi UIs;
- Expert in various programming languages including C++, JavaScript, and Python;
- Experienced in database management with Oracle, MySQL, and PostgreSQL among others (Data Modeling Database Management, Normalization and Denormalization, Data Integrity, Data Warehousing, ETL, SQL and Query Optimization, Database Design, Stored Routines and Packages, Data Backup and Recovery, Data Migration, Web Scraping);
- Experience in technical leadership in various domains such as enterprise software, finance, and healthcare.
Expert
Ukraine
Node.js 10yr.
• 15+ years JavaScript programming
• Over 10 years in Node.JS programming
• Familiar with React.js
• Experience building highly scalable distributed web applications and browser extensions
• Extensive experience with REST services
• Strong communication and cooperation skills
• Solid experience as a Backend developer
• Fluent in English, written and spoken
• long Term experience in remote work with USA and Europien companies
• Self-directed person, with proven ability to manage goals and deadlines effectively
Expert
Belarus
Objective-C 10yr.
iOS 10yr.
C++ 10yr.
Swift 5yr.
- Served as a Senior Software Developer in the Two German Automotive Navigation Projects, focusing on System Team operations as well as Map and Routing domains.
- VPN and Network Filtering Development: Extensive experience developing VPN solutions, including cross-platform engines for KeepSolid’s VPN Lite, and expertise in low-level network filtering, proxies, and handling internet traffic.
- iOS Development Expertise: Over 10 years of hands-on experience with iOS development, including business apps and secure communication tools, with proficiency in Swift and Objective-C.
- C++ Proficiency: Strong background in C++ for developing core network functionalities, optimizing performance, and building cross-platform applications.
- Enterprise Application Development: Skilled in developing enterprise-level applications, including parental-style internet filters and device policy management tools.
- Agile Methodologies: Proven track record of working in Agile Scrum environments, delivering high-quality software with fast iteration and strong collaboration.
- Leadership and Team Collaboration: Experience as a Tech Lead, mentoring teams, and coordinating with stakeholders to resolve issues and implement new features.
- Available to start ASAP
Expert
Odesa, Ukraine
Tableau 4yr.
SQL 4yr.
Power BI 4yr.
Spotfire 1yr.
Python
- 5 years of commercial experience with PowerBI and Tableau
- 4 years of commercial experience with SQL
- Prepared a comprehensive analysis of the US real estate market with Spotfire
- Assessed data quality from sources that contained tens of thousands of customer and transaction data, by using SQL in Azure SQL Database
- Employed data-driven techniques to develop RFM analysis, and create interactive dashboards for customer trend visualization and high-value business proposals
- Upper-Intermediate English
Middle
Marseille, France
SAP
- Experienced SAP Engineer with a diverse background in SAP development, data management, application support, and auditing;
- Strong expertise in ABAP programming, including report development and debugging;
- Demonstrated experience in system customization, gap analysis, and addressing business requirements;
- 6+ years of experience in SAP (PM, MM, WM), customizing, LSMW tools, VBA code, and ABAP;
- 4+ years of relevant experience in SAPUI5, Fiori, BTP, S/HANA, CDS, ODATA;
- Familiar with SAP FI, CO, and SD;
- 9 years of experience as an auditor;
- Upper-Intermediate English.
Senior
Lviv, Ukraine
SAP
MM
SD (Stable Diffusion)
- 12+ years of experience in the implementation and support of MM/SD functionalities;
- MM consultant to 3 SAP R/3 implementations, SD consultant to 2 SAP R/3 implementations;
- Integration specialist with external systems: 3PL - WMS, Web Application, with client accounting systems;
- Full life cycle Implementation Projects: 5 and additional integration projects;
- Primary Module: MM - Material management;
- Secondary Module: SD - Sale and Distribution, LE - Logistic Execution;
- Technical skills: ABAP, Data Dictionary, Search Objects, ABAP Query, BAPI, BADI, RFC, Smart Forms, LSMW, Batch Input, Standard IDOC (for integration with external systems), VBS Script, VBA, API in VBA, MS, Access, SQL
- Industry exposure: Chemicals, Retail, Electronics Consume;
- Training: Class Instructor on MM/SD Modules, Preparation of training scenario/documentation.
- Advanced English
- German proficiency level – B2 written and B1 spoken
Senior
Lviv, Ukraine
Data Analysis 4yr.
AWS ML (Amazon Machine learning services) 4yr.
Neural Networks
Data Mining
Business Analysis
- Data Scientist with 4+ years of experience specializing in delivering insights and solutions using analytics, machine learning, and data science across diverse industries.
- Profound technical expertise with Python, utilizing libraries such as pandas, numpy, TensorFlow, and Keras, and deploying solutions with tools like Docker and FastAPI.
- Successfully led data science projects focusing on market analytics, computer vision, and content moderation, demonstrating a strong background in ETL pipelines, predictive modeling, and deploying RESTful services.
- Holds a Master's in Computer Science, augmented with certifications from Google Cloud and DataCamp, and is proficient in implementing ML methodologies, including NLP, CV, and time series analysis.
- Experienced in RDBMS such as MySQL and PostgreSQL, cloud platforms like AWS and GCP, and has practical knowledge of software development life cycles and agile methodologies.
- Fluent in English and Ukrainian, embodying strong multidisciplinary team leadership, evident in the management of complex projects and innovative solution development.
Middle
Ternopil, Ukraine
XML 10yr.
XSLT 10yr.
- 11+ years of experience in IT
- 10+ years of experience with XSLT/XML
- Writing, testing and maintaining XSLT code that applies mapping on XML and output JATS XML & HTML
- Familiar with many processing engines like Saxon (Java) - libxslt (C) - Python’s package
- Upper-intermediate English
- Available ASAP
Senior
Cairo, Egypt
Kubernetes
AWS
DevOps
Python
- 24 years of professional expertise in the IT industry;
- 2+ years of work experience with Kubernetes;
- 6+ years of experience with Docker;
- Solid skills in working with AWS Cloud Platform;
- Experience with blockchain projects on Ethereum and Polkadot;
- Deep knowledge of building and supporting monitoring and alerting systems using Grafana and Prometheus;
- Good understanding of work with Terraform.
- Skilled in designing, building, and improvement of the IT infrastructure;
- Experienced in the implementation of solutions on Microsoft\ Apple \ and Unix platforms
- Deep understanding of building virtual and cloud environments;
- Experience in building corporate backup systems;
Senior
Cherkasy, Ukraine
Python
TypeScript
Architecture and Design Patterns
Software Engineer with expertise in competitive programming, solving 1000+ problems on LeetCode/Codeforce, and demonstrated experience in architecting full-stack applications. Proficient in backend development with Python and Node.js, also skilled in mobile app development using Flutter. Track record includes developing high-performance RESTful APIs that handle 50K+ daily requests and implementing scalable FastAPI backends. Bachelor of Science in progress with a focus on software architecture, AI/ML systems from Adama Science and Technology University. Achievements include ranking 8th in ETCPC National Finals among 200+ teams and excelling in core programming languages and software development methodologies.
Senior
Adama, Ethiopia
TypeScript
React
Node.js
JavaScript
PostgreSQL
- Senior Software Engineer with 7 years of experience building back-end and full-stack web applications. Worked on fintech, healthcare, and SaaS products;
- TypeScript and JavaScript. Experience with Node (Express, Koa, Fastify), React and Vue.js (including Vue 3), Nuxt, and Storybook; PostgreSQL schema design, and analytics-oriented querying.
- Operated containerized infrastructure with CI/CD;
- System design and implementation from the ground up with ownership from architecture to backend, frontend, and infrastructure; Authentication and role-based access control with stateless, security-first implementation details.
- Experience with multi-tenant platforms that require strict data isolation and have to meet GDPR and Swiss data protection requirements;
- Implemented and worked on highly regulated financial software and platforms, including MiCAR-compliant stablecoin platforms, blockchain integrations, as well as banking and SMTP integrations;
Senior
Switzerland
JavaScript 5yr.
TypeScript 5yr.
Python 5yr.
SQL 5yr.
HTML5 5yr.
Full-Stack Engineer with 5 years of experience building end-to-end web applications, distributed systems, and modern frontend experiences. Deep expertise in TypeScript, Next.js, Node.js, PostgreSQL, and cloud-native architectures.
Known for shipping high-quality features fast, owning projects from concept to production, and collaborating effectively in remote, async teams. Comfortable with modern tooling, AI-assisted development workflows, and architecting reliable, scalable solutions used by thousands of users.
Senior
TypeScript 5yr.
JavaScript 5yr.
Node.js 5yr.
React 5yr.
Next.js
Software Engineer with 4 years experience, including FAANG tenure, excels in Web3, blockchain, and frontend technologies. Spearheaded development of high-traffic React and Next.js applications, enhancing performance metrics by 35%. Pioneered end-to-end decentralized solutions encompassing DeFi and NFT domains with strong proficiency in EVM, Solidity, and full-stack Web3 practices. Recognized for applying FAANG engineering standards to startup ecosystems, ensuring scalable and maintainable code. Holds a Bachelor's in Computer Science from Lviv Polytechnic National University, demonstrating a robust foundation in technical academia and a commitment to rigorous engineering methods.
Senior
Chervonohrad, Ukraine
Django REST framework 3yr.
UML 3yr.
VBA 3yr.
SAP Automation Training
Software engineer with hands-on experience in Python, Django, HTML, and CSS, adept at full-stack web development. Proven track record with a recent internship at CODECRAFT INFOTECH where practical application of E-commerce web application development was achieved. Robust educational foundation highlighted by an intern instructor role in Python and Django at Ahub Technologies Ltd. Certified in Information Technology with solid understanding of computer hardware and software from Tenim Press Business Center. Skilled in Excel, CorelDraw, and E-commerce applications, with a focus on training and skill development at Ahub Plateau. Looking to apply strong problem-solving skills and technical expertise in Python Developer and Graphic Designer roles.
Intern
Jos, Nigeria
React 4yr.
Ext JS 2yr.
TypeScript
React Router
Tailwind CSS
Accomplished software engineer with a demonstrated history of working in the information technology and services industry. Skilled in building scalable React applications, with a strong emphasis on front-end development and user experience. An effective leader with experience as a Senior React Developer and Front-end Lead, focusing on defining problems, clarifying specifications, and taking full ownership of projects. Successfully transitioned from earlier sales and operations roles to full-stack development, showcasing versatility and a continuous learning mindset. Education includes a Bachelor of Science in Information Technology with high accolades. Technically proficient in React, TypeScript, Next.js, and modern development tools, with a solid foundation in software development practices.
Senior
Mecca, Saudi Arabia
Swift 6yr.
UIKit 6yr.
RxSwift
Combine framework
Crashlytics
Senior iOS Developer with over six years of experience in developing high-performance mobile applications. Expertise in designing scalable architectures such as VIPER, MVVM, and Redux and in optimizing app performance through in-depth profiling and code refactoring. Proven track record of improving messaging app stability by 20%, reducing memory usage by 30%, and enhancing fin-tech app user interfaces with custom UI components and animations. Delivered an innovative Bluetooth mobile app, enhancing building time by 25% and memory usage by 15%. Proficient in Swift, UIKit, RxSwift, Combine, Firebase, and Mapbox, with the ability to collaborate seamlessly with cross-functional teams. Possesses an advanced level in English and a strong grasp of various development frameworks and tools.
Senior
Python 5yr.
Django REST framework 5yr.
SQL 5yr.
Celery 4yr.
FastAPI
Software engineer with 5 years of experience, excelling in Python/Django backend development and cloud-ready API creation. Proven track record includes architecting a One-Time Setup wizard for Adagrad AI that slashed deployment time by 95%, and designing a SaaS automation platform at Ascent Wellness & Pharma that saved $4,000 monthly and cut manual workflows by 70%. Skilled in advanced databases and cloud operations, with effective system design showcased by the development of a real-time analytics platform that won 3rd place in Maruti Suzuki’s innovation challenge. Holds a Bachelor's degree in Engineering and is proficient in Python, SQL, Django, FastAPI, and a suite of tools and technologies pivotal to modern software development, including Docker, RabbitMQ, and PostgreSQL. Recognized for innovation with awards such as Employee of the Quarter at Adagrad AI.
Middle
Mumbai, India
Facebook Auth 3yr.
Dart 3yr.
A seasoned software engineer with 3 years in mobile development, specializing in Flutter and possessing a strong foundation in Java full stack technologies. Spearheaded development of sophisticated mobile applications including fintech and social media platforms, notably integrating third-party services like Plaid and implementing real-time tracking systems. In addition to solid UI/UX design skills, boasts proficiency with Spring MVC, Hibernate, and MySQL, complemented by full-stack Java development training. Holds a Bachelor's degree in Computer Science and has contributed to open-source projects, showcasing practical expertise in a variety of technical environments. A proven track record of architecting robust applications and optimizing performance through advanced programming techniques and methodologies.
Senior
Sirhind, India
Unreal Engine
OOP
Clean Architecture
Python
Docker
Expert Data Engineer with 6+ years of professional experience, specializing in DataOps and DevOps, with a master's degree in Industrial Analytics from Uppsala University. Proficient in building scalable data pipelines using a variety of technologies including Snowflake, AWS, Lambda, PySpark, and Kafka, evidenced by success in event-driven pipeline creation and real-time data ingestion projects. Skilled in automating deployment using Ansible and GitHub Actions, and in data transformation with a focus on automation and efficiency. Accomplished in data analysis and visualization, utilizing tools such as Power BI, DAX, and Power Query. Possesses strong programming skills with extensive use of Python, and experience in database support with expertise in SQL. Demonstrated ability to develop IoT solutions, engage in network engineering, and apply advanced Linux administration techniques.
Senior
Stockholm, Sweden
Flask
Python
Django REST framework
Software engineer leveraging robust academic foundation in Computer Science with hands-on experience in Flask, Python, and Django to build scalable web applications. Proven track record in deploying high-traffic websites leveraging advanced Django framework. Strong comprehension of software development life cycle principles, ready to contribute to cutting-edge technology projects.
Intern
Abbottabad, Pakistan
React Native
Next.js
React
Redux-Saga
With over 12 years in the software industry, this Senior Full Stack Technical Lead excels in leading teams and architecting a wide range of applications using technologies like ReactJS, NextJS, React Native, Flutter, and NodeJS. This includes proficiency in Redux-Saga and Redux-toolkit for state management, as well as utilizing MaterialUI for UI development. Versed in both front-end and back-end coding languages, methodologies, and databases, they consistently deliver complex projects, such as a BBL Bank web application and managing a city center web portal in Saudi Arabia. Their engineering prowess is backed by a Diploma in Software Engineering and a B.Sc., reinforcing their strong theoretical foundation. Methodically familiar with SDLC and agile practices, they are adept at project management using JIRA and have experience in AWS environments. Additionally, their technical toolkit encompasses CI/CD pipelines with Jenkins and CircleCI, and version control expertise with Github and Gitlab.
Architect/Team-lead
Ahmedabad, India
Rust
Azure Blockchain
Smart Contract
SOLID
Web3
Accomplished Full Stack Blockchain Developer with over 9 years of experience in the industry, specializing in the integration of Web3, Rust, Solidity, and other technologies to create innovative blockchain solutions and decentralized applications (DApps). Expertise in front-end and back-end development evidenced by projects like BIMA and Bitcross, with skills in JavaScript, React JS, Node.js, and database management. Adept in building robust smart contracts on various blockchains such as EVM, Solana, and Arch Network, having contributed to key projects including Bitflow, Nimbus, and Trustbet. A solid computer science foundation from Rajiv Gandhi Technical University bolsters a career marked by technical proficiency and readiness for team collaboration as well as independent work. Proven track record of leveraging full-stack development capabilities and deep blockchain knowledge to meet and exceed project requirements.
Senior
Ahmadabad, India
Terraform
Linux
PowerShell
Monitoring systems
• 13 years managing IT infrastructures across Windows and Linux environments.
• Automation (Ansible, Terraform), Сloud administration (Azure, AWS, GCP), and security hardening with OPNsense, PFsense, and Sophos.
• SaaS administration and automation (Microsoft 365, Entra ID/Azure AD, SharePoint, Power Automate), including Identity and access management services with SSO.
• Ability to design and maintain scalable systems, implement SIEM solutions, and optimize performance while reducing operational costs.
Senior
Kyiv, Ukraine