Микита

MYKYTA KOZACHENKO

Full-Stack Developer
Contacts
Email: [open contact info](look above in the "contact info" section)
GitHub: github.com/zaynixx
Telegram: @zaynix
Profile
Full-stack engineer experienced in backend architecture, distributed systems, microservices, high-load APIs, authentication, and frontend development. Skilled in building scalable platforms and modern cloud-native tools.
Skills
Node.js, NestJS • React, Next.js
PostgreSQL, MongoDB • Prisma, TypeORM
Redis, RabbitMQ • WebSockets, Realtime
Docker, Nginx, Linux • GitHub Actions, CI/CD
Microservices Architecture • System Design
OAuth2, JWT, Security • Cloud, VPS, DevOps
Work Experience
Full-Stack Developer — Allonwin (Freelance), 2025 — Present
- Full-stack development using Node.js, TypeScript, React
- Built REST and GraphQL APIs
- Implemented tournaments, payment workflows, WebSocket services
- Worked with PostgreSQL, MongoDB, Prisma
- Mentored junior developers

Full-Stack Developer — NovaTech Solutions, 2024 — 2025
- Led development of high-load microservices using Node.js, Redis, Docker
- Implemented payment integrations (Stripe, crypto, balance systems)
- Architected scalable backend for 200,000+ monthly active users
- Migrated monolith to microservices
- Developed internal admin panel using React
- Reduced API latency by 40%

Backend Developer — UG Team, 2022 — 2024
- Developed backend logic for multiplayer game systems
- Managed servers, databases, load balancing
- Optimized performance and resolved issues
- Maintained production deployments

Backend Developer — DataArt, 2021 — 2022
- Developed backend microservices with Node.js & TypeScript
- Designed APIs and authentication modules
- Implemented Redis and RabbitMQ pipelines
- Created CI/CD pipelines with GitHub Actions
- Improved system reliability and uptime

Education
Cybersecurity Specialist — Skillbox, 2023–2024
Full Secondary Education, 2013–2023