Open to opportunities

Chinmaya User

@chinmayauser

Message

Full-Stack and AI engineer building scalable products and systems.

India

Message

What I'm looking for

I seek hands-on engineering roles building scalable backend and AI systems, with ownership of architecture, product impact, and strong DevOps culture; prefer fast-moving, metric-driven teams.

I am a full‑stack and AI engineer with 6+ years of experience building scalable products, distributed systems, and AI-powered features across SaaS, EdTech, and FoodTech. I co-founded and served as the sole engineer at Growfit where I owned architecture, backend, frontend, mobile, infrastructure, and automation end-to-end, helping scale the product to $390k ARR with strong retention.

My technical strengths include Node.js, TypeScript, React/React Native, Python (Django), Golang, AWS, microservices, and RAG/LLM systems; I design event-driven, low-latency systems and implement observability and CI/CD for reliable production delivery. I have built AI-powered features such as embeddings/vector search solutions, menu planning and preference engines, and contract generation systems integrated with e-sign workflows.

I deliver 0→1 products and optimise existing systems for performance and business outcomes, with hands-on experience across backend, frontend, mobile, DevOps, and automation. I am pragmatic, metrics-focused, and driven to ship reliable, measurable solutions that impact retention and revenue.

Experience

Work history, roles, and key accomplishments

Current

Freelance Software Engineer

Current

CollabSign

Dec 2025 - Present (3 months)

Built AI-powered contract generation with Aadhaar e-sign integration and automated workflows to import/manage creator–brand collaborations from unstructured data (closed-beta).

RAG Prompt Engineering Python E Sign Integration Workflow Automation CRM

Current

Co-Founder & Full-Stack Engineer

Current

Growfit

Jun 2024 - Present (1 year 9 months)

Sole engineer who architected and built a multi-brand D2C food delivery and subscription platform, scaling to $390k ARR with 82% retention and delivering end-to-end product, infra, and automation.

React Native Python AWS PostgreSQL Microservices Docker Event Driven Architecture

Senior Software Engineer

Upraised

Mar 2021 - May 2024 (3 years 2 months)

Built an interview-prep platform including scheduling, WebRTC-based video conferencing, secure online testing with fraud detection, and a learner dashboard, improving scalability and delivery velocity.

React WebRTC AWS PostgreSQL Docker CI CD Fraud Detection Scalable Systems

Contract Software Engineer

Trading Rate Server

Oct 2022 - Nov 2022 (1 month)

Delivered a custom rate server integrating multiple tick providers with Redis Pub/Sub and WebSocket streaming to ensure real-time rates, high availability, and dynamic price logic for a broker.

WebSockets Real Time Systems Rate Caching High Availability Trading Systems

Software Engineer

LoginRadius

Sep 2018 - Feb 2021 (2 years 5 months)

Rebuilt admin console (Angular→React) for 3× performance, migrated monoliths to microservices, and implemented high-volume AWS Lambda+SQS notification and data export systems to improve throughput.

React AWS Lambda SQS Redis Microservices Performance Optimization Analytics