Java · Spring Boot · Microservices · PostgreSQL
Backend developer from Bangalore — building production-grade systems from scratch.

Spring Boot · GitHub App · Google Gemini AI · PostgreSQL · Docker · Multi-Tenant SaaS

A production-ready GitHub App that intercepts PR webhook events, sends diffs to Gemini AI, and posts inline review comments directly on pull request lines.

• Multi-tenant SaaS with JWT auth, RBAC roles, and per-tenant plan enforcement (FREE: 50 reviews/month · PRO: unlimited)
• Async review pipeline using Spring thread-pool to keep webhook acknowledgement under GitHub's 10s timeout
• HMAC-SHA256 webhook signature verification · 5 normalized PostgreSQL tables · Swagger UI on all 12 endpoints
• Containerized with Docker Compose · deployed to Railway

Node.js · Express · PostgreSQL · Vercel

REST API supporting 3 subscription tiers with per-tenant request quotas enforced at the API gateway layer.

• Normalized PostgreSQL schema with compound indexing and versioned SQL migrations
• Background worker for async AI calls cut p95 latency from ~4s to under 2s
• Rate limiting via express-rate-limit before service logic · deployed to Vercel with env-based config

React · Solidity · Thirdweb · Hedera Testnet · Web3

A decentralized crowdfunding platform built on the Hedera blockchain — users can create campaigns, set funding goals, and accept contributions transparently on-chain.

• Smart contracts written in Solidity and deployed to Hedera testnet via Thirdweb
• All campaign data and transactions stored immutably on-chain — no centralized backend
• React frontend with campaign creation, browsing, and contribution flows

Backend Developer Intern — Nija Venture Impacts Pvt. Ltd. (Jan 2026 – Apr 2026)

• Shipped 12+ production REST API endpoints with JWT auth and a 3-tier RBAC layer (Admin / Editor / Viewer) for a live CMS
• Cut average query latency ~40% on a 10,000+ document MongoDB collection via compound indexing and schema denormalization
• Built granular permission middleware enforcing resource-level access control across 5 entity types

• B.E. Electronics & Communication Engineering — Bangalore Institute of Technology (Expected May 2026) · CGPA: 8.05/10
• Juniper Networks Certified Associate – Cloud (JNCIA-Cloud) (Aug 2025)

Open to fresher backend roles at product companies. Let's connect!
avinash797976@gmail.com