Candidates Fullstack, Ukraine

Full-Stack

$2000 / mo

≈ $24000 / year

Fullstack · 3 years of experience · B2 - Upper Intermediate · Published today

Ukraine, Kyiv · Office or remote

Працюю Full-Stack Engineer з фокусом на React, React Native, Next.js, Node.js та TypeScript. Маю досвід розробки production web і mobile applications, realtime систем, streaming functionality та backend integrations.

Працював над mobile applications із voice/video calling, offline-first архітектурою, synchronization flows, Electron desktop adaptation та scalable backend services. Також займався REST API integrations, CI/CD workflows, performance optimization, debugging production issues та release management.

Зараз найбільше цікавить розвиток у напрямку fullstack architecture, realtime systems та scalable product development.

Highlights

— Розробка production mobile та web applications на React / React Native / Node.js
— Досвід роботи з realtime systems, WebRTC, streaming та WebSockets
— Побудова REST APIs, integrations та backend services
— Робота з CI/CD, Docker, EAS Build, release workflows
— Performance optimization та debugging production issues
— Досвід offline-first architecture та cross-platform development
— Участь у technical discussions та architecture decisions

Skills

TypeScript 3y React.js 3y React Native 3y Next.js 3y Expo React Native 3y Node.js 3y Fastify 3y Express.js 3y Nest.js 3y E2E Automation Testing 3y + 16 more

Unit Testing 3y Electron.js 3y AI/ML 3y Git 3y SASS / SCSS 3y Material UI 3y AWS 3y Firebase 3y Prometheus 3y Preact 3y Claude Code Codex Cursor Google Antigravity Microsoft Copilot Gemini

Domains

Domain experience: SaaS, Mobile

See public profile 9

Full-Stack Developer (Node/Next)

$2600 / mo

≈ $31200 / year

In passive search

Fullstack · 4 years of experience · B1 - Intermediate · Published today

Ukraine · Only remote

Full-Stack Developer for the last 2 years, 4 years in development overall. Currently building an internal
platform that automates daily operations for teams running advertising on Facebook and TikTok - pulling analytics
together so the team can see what works and adapt in real time, coordinating tasks across teams, and calculating
each buyer's earnings.
Started on frontend, grew into full-stack, and from there into product-side work - now launching features from
idea to production. Brief team-lead stint on a side projec

Highlights

Full-Stack Developer Global Trendline Aug 2024 -Present 1 yr 10 mos
- Worked on an in-app advertising campaign creation flow for TikTok and Facebook, replacing native platform
flows with a streamlined version that reduces steps and speeds up campaign launch
- Developed and shipped a user activity tracking system - aggregating platform activity into actionable insights
for analytics and management
- Built a roles and permissions system across the platform - supporting both group-based access and individual
overrides
- Developed a task management system for the account management team - replaced the previous manual
workflow with structured tasks, statuses, and lifecycle states
- Built the payroll subsystem -calculates per-buyer earnings by team-specific tiered payout rules
- Built Stripe integration for subscriptions and token-based billing, including payment flows and usage tracking
- Designed and built a financial model and token system for users, including usage calculations and pricing
structure
- Other shipped features: MCP server exposing analytics and ad-management tools to LLM clients, Telegram-bot
notifications, and improved security via 2-step authentication
Frontend Developer CompassWay Fintech Solutions Feb 2024 -Aug 2024 6 mos
- React developer on a credit product application
- Worked on the security side - secure storage of user documents and identity data within the platform.
- Built complex multi-step form validation flows used in the credit application
- Developed user-facing interfaces and forms across the product
- Refactored legacy code, and contributed to ongoing UI improvements on the admin side.
Frontend Developer NikCode Aug 2023 -Feb 2024 6 mos
- Next.js developer on a fintech admin panel built from scratch
- Worked on the initial layout, structural components, and reusable parts of the interface.
- The panel handled meeting scheduling and integrations with code repositories for tracking and monitoring
team progress.
Frontend Developer Freelance Jun 2022 -Aug 2023 1 yr 3 mos
- Various Next.js / React projects.
- Non commercial projects
- Internship

Skills

Fullstack 2y Front end 4y PostgreSQL 3y Claude Code 1y Microsoft Copilot 1.5y

See public profile 0

Senior Full-Stack Developer (Node.js, React)

$3500 / mo

≈ $42000 / year

Fullstack · More than 10 years of experience · B1 - Intermediate · Published today

Ukraine, Kyiv · Only remote

Senior Full-Stack Developer with 15+ years of commercial experience delivering high-load, scalable web, Web3, gaming, and enterprise solutions. Expert in JavaScript/TypeScript ecosystem with a strong focus on React, Next.js, and Node.js. Proven ability to architect and deliver complex systems end-to-end, from design to production, with a focus on performance, scalability, and reliability.

Deep front-end expertise: React, Next.js, React Native, Redux, MobX, Reflux, Semantic UI, HTML5, Sass, LESS, Styled Components, Ant Design, Blueprint, Bootstrap. Strong experience building high-performance UI, optimizing rendering, SEO, and cross-browser compatibility.

Solid back-end engineering: Node.js, Express, PHP, .NET. Experience designing scalable APIs, real-time systems, and high-load services. Strong database expertise: MongoDB, PostgreSQL, MySQL, MSSQL, Redis.

Blockchain/Web3: commercial experience with smart contracts and decentralized applications. Strong expertise in Web3.js, Ethers.js, Solidity, The Graph. Built production crypto platforms, including trading systems, NFT applications, and betting solutions.

Product and domain experience: fintech, crypto, gaming (6+ years), SaaS, CMS, enterprise platforms, CRM systems, browser games, and mobile applications.

Architecture & delivery: system design, scalable architecture, performance optimization, production deployment, code quality, and maintainability.

Leadership: Team Lead experience, mentoring engineers, code reviews, setting engineering standards, driving technical decisions, working in Agile teams with cross-functional stakeholders.

Tech stack: JavaScript, TypeScript, React, Next.js, React Native, Redux, MobX, Reflux, Node.js, Express, MongoDB, PostgreSQL, MySQL, MSSQL, Redis, Web3.js, Ethers.js, Solidity, The Graph, Webpack, Sass, LESS, Styled Components, React Query, Ant Design, Blueprint, Bootstrap.

Highlights

Experience in creating high-load projects
Experience in building projects from scratch
Experience in managing a development team

Skills

JavaScript 10+y React.js 10+y Redux 8y HTML5 10y CSS 10+y TypeScript 10y HTML 10+y Node.js 8y Webpack 10y REST API 10y + 11 more

Bootstrap JavaScript (ES6+) React Native 5y Web Development 10+y MongoDB 5y MobX 3y MySQL 4y Express.js 6y Nest.js 2y Vue.js 1y Claude Code 0.5y

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developer

$400 / mo

≈ $4800 / year

Fullstack · 6 months · B1 - Intermediate · Published today

Ukraine, Kyiv · Office or remote

•Enterprise Application Development: Developed, tested, and maintained enterprise-grade desktop applications using JavaScript.
•Full-Stack E-commerce Projects: Created several real-world e-commerce websites utilizing .NET, React.js, and Node.js.
•Frontend Execution: Collaborated in a team environment following SCRUM methodologies to deliver responsive UI tasks using HTML, CSS, and React.
•Automation & Web Scraping: Developed specialized tools to parse websites, extract data for analysis, and automate data entry back to target platforms.

Highlights

•Client Satisfaction: Achieved 100% client satisfaction through on-time project completion and high-quality code delivery.
•E-commerce Architecture: Built a fully responsive e-commerce platform featuring advanced product filtering, sorting, and a shopping cart system powered by the React ecosystem.
•File Management System: Developed a Node.js application for efficient server-side file compression utilizing Sequelize ORM and custom middleware.
•Media Automation: Engineered a YouTube Downloader tool to streamline media acquisition.
•Social Integration: Successfully implemented Facebook API integrations for social network connectivity.
•Advanced Problem Solving: Applied SOLID principles and design patterns like Decorator and Factory Method to solve complex software architecture challenges.

Skills

JavaScript 1.5y React.js 1.5y TypeScript 0.5y Git Node.js 1y PostgreSQL 1.5y HTML5 2.5y CSS 2.5y Express.js 1y REST API 2y + 8 more

HTML 2y SASS 2.5y Webpack 1y OOP 1.5y Bootstrap 1.5y Json 2.5y Sequelize ORM 1y React Query 0.5y

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Full Stack Software Engineer (React, Node js)

$2000 / mo

≈ $24000 / year

Fullstack · 3 years of experience · B2 - Upper Intermediate · Published today

Ukraine · Only remote

Contributed to the development of a large-scale API documentation platform by delivering features that improved the experience for enterprise customers and strengthened the platform’s overall reliability and usability. Focused on understanding product and business requirements and translating them into practical solutions that supported both user needs and business objectives.

Worked on initiatives aimed at improving platform stability, reducing operational risks, and increasing confidence in product releases. These improvements helped ensure a more reliable experience for enterprise clients and reduced friction in internal development and delivery processes.

Played a key role in enhancing system security and reliability of external integrations by designing solutions that ensured safe and consistent communication with third-party services. This contributed to stronger data integrity and more stable integration workflows across the platform ecosystem.

Contributed to product evolution in areas related to AI-driven functionality and documentation workflows, supporting the company’s efforts to improve automation and scalability of knowledge-based systems.

Regularly collaborated with cross-functional teams, including product, support, and engineering, to analyze requirements, resolve production issues, and ensure smooth delivery of features. This work improved response times for customer issues and strengthened alignment between technical execution and business priorities.

Skills

React.js 4y Next.js 3y Nest.js 3y Node.js 4y HTML 4y CSS 4y RabbitMQ 2y Playwright 2y REST API 3y GraphQL 3y + 9 more

React Query 3y Redux Toolkit 4y Material UI 4y Express.js 3y OAuth2 / JWT 3y Cursor 1y Claude Code 0.5y Codex 0.5y Gemini 1y

See public profile 1

AI / Automation Engineer

$1800 / mo

≈ $21600 / year

Fullstack, Node.js · 3 years of experience · B1 - Intermediate · Published today

Ukraine, Drogobich · Only remote

AI Automation Engineer with 3+ years of experience in, business process automation, AI-powered solutions, and software development.

Over the past two years, I have been designing and implementing automation systems that help teams eliminate repetitive tasks, streamline business operations and improve productivity.

I have commercial experience working with multiple business departments, including Warehouse and Customer Support, Marketing, Legal, HR, SDR and Business Development, transforming business requirements into scalable technical solutions.

My expertise includes workflow orchestration, system integrations, AI-assisted development and business process optimization using n8n, Windmill and modern AI tools.

I actively use Claude Code and LLM APIs in daily development and have hands-on experience building AI-powered solutions using RAG, vector databases and MCP integrations.

Besides automation, I have a TypeScript full-stack background using Node.js, NestJS, React and Next.js.

I enjoy working at the intersection of software engineering, AI and business operations, building systems that deliver measurable impact for organizations.

Skills

JavaScript 4y TypeScript 3y Nest.js 2y Next.js 2y React.js 2y Node.js 2y PostgreSQL 3y Docker 3y GitHub Actions 2y Unit Testing 2y + 12 more

REST API 3y Back end 3y Front end 2y Fullstack 2y AWS 1y GCP (Google Cloud Platform) 0.5y Tailwind 2y CI/CD 2y n8n 2y Windmill 0.5y Claude Code 1y Gemini 2y

Domains

Domain experience: E-commerce / Marketplace

Doesn’t consider: Adult, Gambling, Blockchain / Crypto

See public profile 1

Back-end/full-stack engineer (Node.js)

$3000 / mo

≈ $36000 / year

Node.js, Fullstack · 3.5 years of experience · B1 - Intermediate · Published today

Ukraine, Lviv · Office or remote

I am a full-stack developer focused on backend development, eager to work on innovative projects. My experience includes building dynamic single-page applications, multi-tenant architecture from scratch, writing end-to-end tests, solving complex CAPTCHA challenges, and creating intelligent systems using NLP and AI.
Built a backend from scratch for a learning app.

Technology Stack:
- Programming Languages: JavaScript, TypeScript
- Frameworks and Libraries: Node.js, NestJs, React, React-Native (Express.js, Node-Red)
- Testing: Playwright, Puppeteer, Cucumber, Postman
- Databases: MySQL, PostgreSQL, MongoDB, vectorDB
- Other Technologies: NLP, AI, Telegram bot development, Strapi

Highlights

Designed the architecture and built the backend for the training application from scratch.
Created an architecture for processing books in the project (I used batch and background processing)

Looking for

Mentor, professional growth

Skills

MongoDB 4y PostgreSQL 4y Node.js 5y Nest.js 2.5y HTML 5y CSS 5y JavaScript 4y TypeScript 3.5y React Native 1y React.js 2y + 24 more

Redux 2y Mongoose 2y Jest 2y Playwright 1.5y Puppeteer 1.5y Cucumber 1y Git 5y BDD Postman в процесі вивчення 1.5y Sequelize 1y Telegram Bot API 0.5y API Integration CRM MySQL 2y Next.js 0.5y Webpack 3y React Query 0.5y PHP 0.5y CI/CD 2y REST API 3.5y Microservices 2y Claude Code 2y Gemini 1.5y Microsoft Copilot 2y

Domains

Domain experience: Education, Fintech, Mobile, SaaS

Doesn’t consider: Adult, Gambling

See public profile 1

Full-Stack Developer

$4500 / mo

≈ $54000 / year

Fullstack · 7 years of experience · C1 - Advanced · Published today

Ukraine, Lviv · Office or remote

HI,
I am Full-Stack Developer with 7+ years of experience building scalable web applications for EdTech and fintech/crypto
products. Strong in JavaScript/TypeScript with React, Vue, Node.js, and .NET, focused on clean architecture and
end-to-end feature delivery. Experienced in micro-frontends (Single-SPA), API integration, and backend
collaboration for data flow improvements. Reduced code conflicts by 50% through architectural standardization and
improved reliability by increasing test coverage from 25% to 100%, reducing defects by 30%. Acted as technical
owner in distributed teams, delivering real-time dashboards and scalable full-stack features

Highlights

- Architected a Single-SPA micro-frontend platform across 5 applications, enabling independent
deployment per team and reducing cross-team integration time by 50%.

- Standardized and automated E2E test scenarios across the CI/CD pipeline, cutting production
defects by 30%.

- Contributed to backend development in .NET — designed API contracts, introduced typed DTOs,
and refined request parameters to support efficient data handling across frontend consumers.

- Raised shared component test coverage from 25% to 100%, establishing reliability standards
adopted across the platform.

- Building Gather — a real-time social coordination app (Next.js, Node.js, PostgreSQL, Prisma)
designed to help people organize spontaneous in-person meetups.

Looking for

I am seeking a role where I can contribute my expertise while continuing to grow professionally. My ideal environment would include:

• Project & Technical:
- Well-structured development processes with clear architecture vision
- Focus on code quality and modern development practices
- Opportunity to work with current technologies and implement best practices
- Balance between maintaining existing solutions and implementing new features

• Team & Culture:
- Collaborative team environment with knowledge sharing
- Clear communication channels and transparent decision-making process
- Regular technical discussions and code reviews
- Support for professional growth and learning opportunities

• Work Environment:
- Flexible working arrangements (remote/hybrid options)
- Balanced workload with realistic deadlines
- Modern development tools and resources
- Regular feedback and clear performance metrics

I value organizations that prioritize both technical excellence and employee development, where I can make meaningful contributions while continuing to enhance my skills and knowledge.

Skills

TypeScript 7y JavaScript 7y React.js 5y Vue.js 5y Svelte.js 4.5y Node.js 2.5y HTML5 6y CSS 6y SASS 6y REST API 5y + 7 more

Nuxt.js 5y SvelteKit 4.5y Microsoft Azure DevOps 4y Next.js 2y Claude Code 1y Cursor 1.5y Codex 1y

Domains

Domain experience: SaaS, Education, Fintech

See public profile 1

Full Stack Web Developer

$3000 / mo

≈ $36000 / year

Fullstack · More than 10 years of experience · A2 - Elementary · Published today

Ukraine, Ivano-Frankivsk · Only remote

03/2025 – present
Freelance, Full Stack Web Developer
Development and maintenance of websites, database work, creation and integration of APIs, development and maintenance of a data parser, optimization and modernization of legacy code to newer PHP versions.
Stack: PHP, Laravel, Yii, Phalcon, F3 (Fat-Free), RR + Spiral, JS, Vue.js, React, jQuery, MySQL, PostgreSQL, MongoDB, ScyllaDB, Redis, WebSocket, Node.js, Amazon: EC2, S3, SES

02/2025 – 03/2025
Ncase, Full Stack Web Developer
Development of a commercial platform: structure, functionality, integration of the client side with business logic.
Stack: PHP, Laravel, JS, Vue.js, MySQL

06/2024 – 02/2025
Freelance, Full Stack Web Developer
Support and further development of a PHP project, migration from jQuery to Vue.js, ORM integration.
Stack: PHP, Laravel, JS, Vue.js, jQuery, MySQL, MongoDB, Redis, WebSocket

10/2020 – 06/2024
YamSoft, Full Stack Web Developer
Development of projects of various complexity, with a primary focus on creating and maintaining APIs for mobile applications and websites.
Stack: PHP, Laravel, JS, Vue.js, jQuery, MySQL, MongoDB, Memcached, Firebase

02/2019 – 10/2020
Freelance, Full Stack Web Developer
Small and medium-sized projects: catalogs, personal websites, surveys, chats.
Stack: PHP, Slim Framework, JS, Vue.js, jQuery, MySQL, MongoDB, ElasticSearch, Memcached

05/2018 – 02/2019
Ukiepro, Full Stack Web Developer
Development of a sports statistics service for teams and players. Team-based development.
Stack: PHP, Yii2, MySQL, Amazon: S3

09/2012 – 05/2018
Freelance, Web Developer
Development and maintenance of more than 10 commercial projects, including catalogs and service platforms.
Stack: PHP, JS, jQuery, MySQL, MongoDB, Redis, ElasticSearch, Sphinx, CouchDB, Memcached

09/2011 – 09/2012
Ukiepro, Full Stack Web Developer
Commercial projects for the US market, microlearning systems.
Stack: PHP, Kohana, CodeIgniter, JS, jQuery, MySQL, eBay API

11/2010 – 08/2011
Kraser, Full Stack Web Developer
Commercial projects for the Ukrainian market: e-commerce websites, corporate websites, system support and maintenance.
Stack: PHP, Yii, MySQL, Memcache

Highlights

- Developed and maintained backend systems for web and mobile projects.
- Created and integrated APIs between services and frontend applications.
- Worked with legacy projects: code refactoring, PHP version upgrades, and gradual migration to modern frameworks.
- Developed and maintained data parsers: data collection, processing, storage, and integration into existing systems.
- Designed database structures and performed migrations between different databases (SQL and NoSQL) based on project requirements.
- Used Redis for caching, queues, and real-time tasks.
- Implemented WebSocket functionality (chats, notifications).
- Integrated Node.js for asynchronous tasks and data processing.
- Worked with frontend codebases: maintaining existing code, replacing plain JavaScript or libraries (jQuery, Backbone, etc.) with Vue.js or React, and integrating frontend with APIs.
- Participated in the full development lifecycle: from requirements discussion to production support.
- Worked both independently and as part of teams of various sizes.
- Deployed and maintained projects on AWS (EC2, S3, SES).

Skills

PHP 10+y Laravel 6y Yii Phalcon MySQL JavaScript Vue.js 8y MongoDB React.js HTML/CSS + 4 more

SASS / SCSS Docker Git AJAX

See public profile 1

Senior Full Stack Developer (Angular/Node.js)

$5000 / mo

≈ $60000 / year

Fullstack, Fullstack · 7 years of experience · C1 - Advanced · Published today

Ukraine, Kyiv · Office or remote

Fullstack JavaScript Developer with focus on building internal business systems and product applications. Worked with complex UI logic, data processing and automation features. Improved performance and refactored architecture in existing systems, maintaining code quality and scalability. Mentored developers and participated in technical interviews

Looking for

Looking for a role focused on developing and scaling complex internal or product systems with real business logic and rich interfaces. Prefer work involving system design, architecture decisions and performance optimization. Interested in collaboration with strong engineering teams and ownership of technical solutions

Skills

Nest.js 2y Angular 7y Node.js 7y Express.js 5y JavaScript 7y TypeScript 7y PostgreSQL 2y MongoDB 5y TypeORM 1.5y Microservices 3y + 10 more

WebSockets 3y REST API 7y GraphQL 3y JWT 3y Docker 1y Puppeteer 2.5y OOP 7y React.js 0.5y Vue 3 0.5y Claude Code 0.5y

Domains

Domain experience: Energy / Utilities, E-commerce / Marketplace, Advertising / Marketing

See public profile 4

Candidates 2811

Full-Stack

Full-Stack Developer (Node/Next)

Senior Full-Stack Developer (Node.js, React)

developer

Full Stack Software Engineer (React, Node js)

AI / Automation Engineer

Back-end/full-stack engineer (Node.js)

Full-Stack Developer

Full Stack Web Developer

Senior Full Stack Developer (Angular/Node.js)

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