Skills:

• Programming Languages: JavaScript, Typescript (minor Go, Python knowledge)

• Node.js: NestJS, Fastify, Express.js, Koa

• Databases: PostgreSQL, MongoDB, Redis (Firebase, Elasticsearch, DynamoDB, Supabase)

• ORMs: TypeORM, Sequelize, Mongoose, Prisma

• CI/CD: GitLab CI/CD, GitHub Actions, Container registry (minor Jenkins experience)

• Orchestration: Coolify, Dokploy, Docker Swarm, Kubernetes

• Containerization: Docker, Podman

• Cloud Services: DO, AWS, Azure (minor GCP experience)

• Monitoring: Sentry, New Relic

• Web Servers: VPS, Traefik, Nginx, Caddy

• Frontend: React, WebExtensions (minor Next.js, Vue knowledge)

• Other: RabbitMQ, Jest, WebSocket, SSE, OAuth, JWT, Linux, Swagger, Postman, Telegram Bot Api, payment gateways

Projects:

• Web3 Trading Platform: took part in designing scalable architecture, built a robust authentication system, and used AWS Lambda for dynamic scaling during peak traffic (Tech stack: NestJS, AWS, ElasticSearch, Redis, PostgreSQL, Sentry, RabbitMQ, OAuth)

• Multifunctional Economic CRM: created a microservices platform for finances, advertising, and stats, added Telegram/Jira features, and optimized database queries for efficiency (Tech stack: NestJS, RabbitMQ, PostgreSQL, Firebase, Nx)

• AI Chat Platform: developed a multi-assistant platform, designed and implemented a scalable system to support seamless user interactions across various assistant categories (Tech stack: OpenAI API, PostgreSQL, MongoDB, SSE, NestJS)

• Community monetization platform: transition the project from Express.js to NestJS for improved architecture and scalability. Complete rewrite of database queries to significantly improve performance, reducing wait times by up to 4 times. New features implementation (Tech stack: Express.js, NestJS, WebSocket, Redis, Stripe, Passport.js, PostgreSQL)

• Digital items trading app: led the project from inception, taking full responsibility for its vision, architecture, and overall development. Built core features like client account management, payment processing, subscriptions, and authentication. Developed a browser extension, multiple websites, backend services, and Telegram bots. Implemented CI/CD pipelines to streamline development (Tech stack: Express.js, NestJS, Docker Swarm, Redis, WebExtensions API, Dokploy, MongoDB, PostgreSQL, React)

• Analytics Platform: developed a YouTube performance analytics platform and a content management tool to streamline social media workflows and automate post scheduling (Tech stack: Express.js, React-Admin, Supabase, Google APIs)

• Parsing System: built a marketplace data parsing system with captcha solving and autobuy features, enhanced by a Chrome extension and Telegram bots. (Tech stack: Node.js, Selenium, Express.js, MongoDB, Passport.js, Grammy, Tailwind)

• Browser Extensions: delivered several browser extensions, contributing to a portfolio of successful client projects

• Fostered long-term client collaborations by consistently delivering impactful and efficient solutions.