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Achievement: YOLOAchievement: QuickdrawAchievement: Pull Shark

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romalsh/README.md

Hi 👋, I'm Roman

TypeScript & Go Software Engineer

GitHub • Telegram

👨‍💻 About Me

Senior Backend / Fullstack Engineer with 5+ years of experience building production-grade web platforms, backend services, and enterprise applications.

🛠 Technical Skills

  • Languages: TypeScript, JavaScript, Go
  • Backend: Node.js, NestJS, Express, Gin
  • Frontend: React, Next.js, Vue.js, Nuxt.js
  • API: REST, GraphQL, gRPC, WebSocket
  • Databases: PostgreSQL, MongoDB, Redis, ClickHouse
  • Messaging: RabbitMQ, Kafka
  • DevOps: Docker, Kubernetes, CI/CD

🚀 Featured Projects

💳 Payment Service

Secure and idempotent webhook processing with HMAC verification, replay protection, Redis, MongoDB and concurrency-safe crediting.

✅ To-Do Service

NestJS/PostgreSQL backend with JWT, migrations, WebSocket events, Docker and E2E tests through Testcontainers.

♾️ Infinity List

Fullstack React/Node.js selector designed for 1,000,000 records using virtualization, cursor pagination and batched mutations.

🔗 URL Service

Fullstack asynchronous URL-processing service with concurrency control, cancellation, timeouts and job progress tracking.

Pinned Loading

  1. payment-service payment-service Public

    Secure payment webhook processing with HMAC verification, replay protection, idempotency and concurrency-safe crediting

    TypeScript

  2. todo-service todo-service Public

    Production-style NestJS API with PostgreSQL, JWT authentication, WebSocket events, Docker and Testcontainers

    TypeScript

  3. infinity-list-app infinity-list-app Public

    Fullstack selector for 1M+ records with virtualization, cursor pagination, drag-and-drop and idempotent batch operations

    TypeScript

  4. url-app url-app Public

    Fullstack platform for asynchronous URL processing with background jobs, progress tracking, cancellation and Docker

    TypeScript