I'm a full-stack engineer obsessed with building scalable systems, intelligent applications, and products that actually work. Over the past 6 years, I've gone deep on TypeScript, React, Node.js, and Python — shipping everything from high-performance e-commerce platforms to autonomous AI agent orchestration systems.

My sweet spot? Owning systems end-to-end — from designing rock-solid database schemas and backend flows to crafting delightful UIs. I think in terms of data integrity, performance, and long-term maintainability, not just feature delivery.

Languages: JavaScript · TypeScript · Python · Solidity · CSS

Frontend: React · React Native · Next.js · Tailwind · Radix UI · shadcn/ui

Backend: Node.js · Express · FastAPI · PostgreSQL · MongoDB · Redis

Web3 & Smart Contracts: Solidity · Hardhat · Ethers.js · Chainlink

DevOps & Infrastructure: Docker · CI/CD · Git workflows

APIs & Data: REST · GraphQL · tRPC · WebSockets · SQL/NoSQL

Testing & Quality: Jest · RTL · Pytest · Deterministic testing

AI/ML: LangGraph · LangChain · Generative AI · ML Pipelines · Agentic Orchestration

Built a production-grade e-commerce platform handling real payments, international commerce, and ML-driven recommendations. Owned everything from Next.js 15 + React 19 frontends to MongoDB schemas, Stripe/PayPal integrations, and realtime interaction tracking. Added agentic AI for smart order management.

Tech: Next.js, TypeScript, MongoDB, Stripe/PayPal, NextAuth, Real-time tracking

Designed and shipped a multi-agent AI orchestration system that plans, codes, tests, and reviews software autonomously. The system enforces the "Builder-as-Architect" philosophy — design first, then atomic execution via specialized agents with bounded autonomy. Zero hallucinations. Zero infinite loops.

Tech: LangGraph, LangChain, Python, Pydantic, FastAPI, LangSmith tracing, PostgreSQL, Docker

Built a premium expense tracking app with absolute privacy — your data never leaves your device. Features include a built-in UPI QR scanner that automatically extracts payee details, biometric app lock, encrypted local storage, and buttery-smooth animations. Shipped for Android via EAS.

Tech: React Native, Expo, TypeScript, Zustand, React Native MMKV, Reanimated, NativeWind

Correctness over Speed – I'll spend the extra time eliminating data race conditions, enforcing transactional safety, and designing APIs that don't lie.

Systems Thinking – Backend performance bottlenecks? Frontend bundle bloat? Crypto gas optimization? I think across the entire stack.

Building Intelligent Agents – Static apps are boring. I'm fascinated by autonomous workflows, self-correcting systems, and agentic AI that actually plan and execute tasks reliably.

Shipping with Confidence – I believe in strong typing, comprehensive testing, clean architecture, and observability from day one.

✨ Eliminated data race conditions in a high-traffic monolith backend by pushing transactional safety down to atomic database operations.

✨ Designed deterministic, testable AI workflows using LangGraph state machines that avoid the classic "hallucination cascade" trap.

✨ Built privacy-first mobile apps with React Native that deliver seamless experiences across web and mobile — no cloud, no tracking.

✨ Shipped production dapps leveraging Solidity smart contracts, Chainlink automation, and Web3 tooling for secure on-chain logic.

✨ ML-driven recommendation pipelines that analyze user interactions and improve accuracy without overfitting.

• Agentic AI & LangGraph – How do we design multi-agent systems that don't hallucinate? How do we enforce bounded autonomy?
• Distributed Data Systems – Trade-offs in consistency, scalability, and latency. Hadoop. Solr. Large-scale analytics.
• TypeScript Everywhere – Strong typing as a productivity multiplier, not overhead.
• Developer Experience – APIs that are boring in the best way. Clear contracts. Minimal surprises.

If you're working on:

• High-scale backend systems that need to stay correct under load
• Intelligent workflows or agentic AI orchestration
• Full-stack features from database to delightful UI
• Crypto or Web3 products
• Something that's never been done before

...I'm interested. Reach out.

GitHub: @sandeep97reddy
Vibe: Building systems that scale. Shipping with confidence. Always learning.