Анатолій

Anatolii Mikhailyuk
Backend Developer (NestJS / TypeScript / AWS)
[відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація») Location: Kyiv, Ukraine
[відкрити контакти](див. вище в блоці «контактна інформація»)

Summary Work Experience
Backend Developer with 5+ years ENIXAN Jan, 2022 - Jul, 2025
of experience in designing and Backend Developer (NestJS / TypeScript / AWS)
building scalable backend services ENIXAN® is a group of game development companies and a mobile pub‐
using NestJS, TypeScript, and lisher for web and mobile platforms.
AWS. Strong focus on performance, Developed scalable backend services for mobile games using NestJS
infrastructure optimization, and real- and WebSockets (leaderboards, clans, social features).
time data processing via Used Redis Pub/Sub to scale WebSocket communication across multiple
WebSockets. Skilled in MongoDB, instances.
MySQL, Redis, BullMQ, and Implemented in-app purchases validation with focus on security and fraud
DevOps practices. Experienced in detection.
working with both monolithic and Built and maintained custom admin panels (NestJS + React), managed
microservice-like architectures, dynamic game configuration via Directus.
implementing event-based Worked on CI/CD pipelines with GitLab for automated testing and
communication and asynchronous deployment.
task handling via queues. Handled Dockerization of legacy services and migration of game servers
to containerized environments.
Education
Managed cloud infrastructure on AWS (EC2, ECS, ElastiCache, SES,
East Ukrainian National ACM) and Hetzner dedicated; optimized CI/CD with GitLab.
University named after V. Dahl Implemented backup strategies and monitored systems via Grafana.
Specialist Degree in Engineering, Reduced infrastructure costs by 30% via optimization.
Computer Science Worked with MongoDB (including shard/key design, index optimization)
Sept, 2004 - Jul, 2009
and MySQL (basic tuning, indexing, query profiling).
Technical Skills Actively used queues (Redis + BullMQ) for async jobs and batch data
TypeScript, NestJS, Node.js, JavaScript,
processing.
AWS, MongoDB, MySQL, WebSockets, Maintained legacy PHP/Yii backend code.
Redis, Linux, Docker, Docker Compose, Designed automation tools using AI (translation, spell-check, profanity
CI/CD, Nginx, Prometheus, Grafana, Loki, filter for game content).
PHP, SOLID, Git, GitLab, Microservices,
ENIXAN Sept, 2020 - Jan, 2022
React, Redux, Vue.js, Directus
Backend PHP/NodeJS Developer
Soft Skills Developed HTTP backend services (PHP) and a WebSocket(Node.js).
Collaboration, Problem-solving, Participated in migration of legacy Flash-based games to JavaScript.
Communication, Time management, Supported existing game projects, including maintenance of backend
Result-oriented
systems and database logic
Languages Participating in the project Homestead
Ukrainian, English ENIXAN Jul, 2017 - Sept, 2020
Flash(AS3) Game Developer
Developed and supported game UI and backend API (PHP REST).
Built a cross-platform game launcher with Electron after Flash was
deprecated.
Integrated social APIs (Facebook and other) including payment flows.
Participated in the development and support of games including Iron
Rage, Golden Frontier, and other company projects.