Senior Full Stack Developer

Location: Remote
Type: Full-time

About the Role:

We are an early stage startup looking for a strong Senior Full Stack Developer to build and evolve a Telegram Mini App and its backend services. This role is for an experienced individual contributor who is comfortable owning features end-to-end — from frontend in Telegram WebView to backend, infrastructure, and automated deployment.

Responsibilities:

• Design and implement backend services and core application logic
• Build responsive, high-performance user interfaces for Telegram WebView
• Develop Telegram Mini Apps using Telegram WebApp API
• Implement secure validation of Telegram initData
• Design and evolve scalable, reliable system architectures
• Develop real-time and event-driven features
• Design and optimize data models and storage layers
• Integrate with third-party services, payments, and external APIs
• Implement and maintain automated build, test, and deployment pipelines
• Work with a monorepo codebase (frontend + backend)
• Participate in technical design reviews and architectural decisions

Required Skills & Experience:

• 5+ years of professional full stack development experience
• Strong experience with JavaScript / TypeScript
• Frontend experience with React, including SPA architecture
• Experience building applications for Telegram Mini Apps / WebView
• Familiarity with Telegram WebApp API
• Backend experience with Node.js and structured backend frameworks (preferably NestJS)
• Strong experience with relational databases, especially PostgreSQL
• Experience using Prisma or similar ORM
• Understanding of security practices, including request validation and signature verification
• Experience with real-time or event-driven systems
• Solid understanding of CI/CD pipelines (preferably GitHub Actions)
• Experience working with Docker and containerized deployments
• Ability to work independently and take ownership of complex features

Additional skills and experience would be a plus:

• Experience with Redis (caching, sessions, rate limiting)
• Experience with monorepo setups (pnpm / yarn workspaces)
• Experience with Vite, TanStack Query, React Router
• Experience configuring Nginx as reverse proxy
• Experience integrating payments in Telegram Mini Apps
• Startup background