Vadym Kopachev
Vadym Kopachev

Full Stack Developer

Open to offers · Member since 10 Sep 2026
Message
Location
Ukraine
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Senior

About

Professional summary

I am a full-stack developer with more than six years of commercial experience building and delivering web and cross-platform products. I have worked in multinational startup teams in both remote and on-site environments.

I specialize in React and its ecosystem, TypeScript, JavaScript, Node.js, Express, NestJS, and backend development with SQL and NoSQL databases. I build maintainable applications from initial requirements through production deployment.

I work closely with product owners to clarify business needs, suggest product and technical improvements, and implement features end to end. I am comfortable owning the full project lifecycle independently as well as collaborating in cross-functional teams.

I have experience improving frontend architecture by decomposing large React components, creating reusable UI components from Figma designs, integrating REST APIs and webhooks, and developing real-time functionality. I also optimize database queries, configure CI/CD pipelines, and containerize applications with Docker.

I have mentored junior developers, performed code reviews, and contributed to technical planning, estimation, and grooming. My experience includes Golang, Flutter, SaaS development, DDoS protection, automated trading strategies, and face-recognition photo gallery features.

I am passionate about AI and machine learning capabilities and stay current with new developments in these areas. I enjoy building performant, user-focused solutions and delivering them reliably to production.

Skills

39 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Application Utilities

Collaboration

Data Stores

Design

Libraries

Experience

Career history

Full Stack Developer VOOPTY

Designed and delivered product features from concept through production in collaboration with product owners. Contributed product improvement ideas, participated in estimation, grooming, and technical planning sessions.

Improved UI flows and developer experience by decomposing large React components into reusable and maintainable units. Integrated REST APIs and webhooks for CRM workflows and sales funnel automation.

Optimized MongoDB queries for improved performance. Replaced Webpack with Rspack, reducing local project startup time by approximately ten times.

Full Stack Developer JOYN CHAT

Developed flexible, reusable user interface components based on Figma designs. Implemented message reactions and real-time interaction features for the chat product.

Collaborated with a cross-functional team on feature delivery and bug fixing. Rewrote part of the Golang backend in NestJS and TypeScript.

Full Stack Developer Software Planet Group

Frequently worked as the sole engineer, owning projects across the full lifecycle from requirements gathering through deployment. Mentored junior developers and conducted code reviews.

Defended infrastructure against DDoS attacks, debugged complex issues in multithreaded Golang applications, containerized applications with Docker Compose, and configured CI/CD pipelines.

Developed trading indicators and automated strategies for trading platforms. Built a SaaS photo gallery with face recognition, including an algorithm to group people by faces.

Full Stack Software Engineer Intern Interlink LLC

Completed a junior full-stack software engineering internship.

Education

Learning history

Cherkasy State Business College

Junior, Information and Computer Science

Kyiv National University of Technologies and Design

Bachelor, Information and Computer Science

ISMA, Informacijas Sistemu Menedžmenta Augstskola

Master, Information and Computer Science

This professional hasn’t added portfolio projects yet.

This professional hasn’t listed any services yet.

People also viewed

All talent ›
Jobs Talent AI Tools Salaries
Menu