Skills.

Languages, frameworks, and infrastructure Subhadip Saha ships production systems with.

Frontend

Pixel-perfect, performant UIs built with modern React paradigms — server components, streaming, and motion-driven experiences that retain users.

  • React
  • Next.js
  • TypeScript
  • JavaScript
  • Tailwind CSS
  • Framer Motion
  • GSAP

Backend

Scalable API design across REST and event-driven architectures — from lightweight HTTP handlers to real-time bidirectional communication at the edge.

  • Node.js
  • Next.js (API Routes / Route Handlers)
  • Flask
  • Python
  • WebSocket

Databases & Caching

Multi-model data strategy — relational integrity with PostgreSQL, document flexibility with MongoDB, sub-millisecond caching with Redis, full-text search with Elasticsearch, and BaaS with Supabase and Firebase.

  • PostgreSQL
  • MongoDB
  • Redis
  • BullMQ
  • Elasticsearch
  • Supabase
  • Firebase
  • Prisma
  • Sequelize

Messaging & Streaming

Event-driven, decoupled architectures that scale horizontally — high-throughput Kafka pipelines and Redis-backed job queues for reliable async workloads.

  • Kafka
  • BullMQ
  • WebSocket

AI / LLM

End-to-end AI product engineering — RAG pipelines, agentic workflows, streaming UIs, and LLM orchestration using both frontier APIs and open-source tooling.

  • OpenAI API
  • Anthropic Claude API
  • LangChain
  • AI SDK
  • RAG pipelines
  • Vector search
  • Streaming UIs

DevOps & Cloud

Infrastructure as code, container orchestration, and zero-downtime deployments — from local Docker compose to global edge networks and automated CI/CD pipelines.

  • AWS
  • Docker
  • Nginx
  • Terraform
  • Cloudflare
  • Vercel
  • GitHub Actions
  • Ubuntu / Linux

Testing & Tooling

Confidence through coverage — end-to-end browser automation, API contract testing, and strict linting pipelines that catch regressions before they ship.

  • Playwright
  • Postman
  • Biome
  • ESLint

Game & 3D

Interactive experiences beyond the browser — real-time game logic in Unity and production-ready 3D assets in Blender.

  • Unity
  • Blender

Design

Design-to-code fluency — prototyping, component libraries, and handoff workflows that eliminate back-and-forth.

  • Figma