MahinderSingh
Senior Full-Stack & AI Engineer — production LLM systems (RAG, AI agents, evals), TypeScript/Next.js, and Python. Forward-deployed style: I ship with customers, end to end.
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AI Apps Shipped to Production
Enterprise Clients Served
Avg. Performance Improvement
Years of Senior-Level Experience
Why Teams Hire Me
I ship fast, scale systems, and need zero babysitting
AI in 2-4 Weeks
Production-ready LLM features. Not months.
Built for Scale
Microservices & DevOps for 100+ clients.
Zero Handholding
Problem in, solution out. I own it end-to-end.
Tech Stack
What I ship with daily
React & Next.js
5+ years
AI & LLMs
GPT-4 • Claude • Agents
TypeScript
Type-safe code
Node.js
Express • APIs
Python Backend
APIs & ML pipelines
Cloud & DevOps
Databases
Async & Message Queues
Event-driven architecture
Testing
Engineering Work
Systems I've designed and shipped — the work behind the keywords.
Enterprise System Architecture
Led system architecture design for Sustainext's enterprise platform. Designed microservices architecture with Node.js and Python services, implemented event-driven communication using Kafka, built API gateway with rate l…
AI/LLM Integration Platform
Architected and developed a comprehensive AI integration platform for enterprise clients. Implemented RAG (Retrieval Augmented Generation) pipelines using LangChain, deployed vector databases with Pinecone and Weaviate, …
AI Workflow Automation Engine
Designed and built an enterprise workflow automation engine leveraging AI agents for intelligent process automation. Features include custom agent framework built on LangChain, visual workflow builder with drag-and-drop …
Real-Time Data Processing Platform
Architected a real-time data processing platform handling millions of events per day. Implemented stream processing with Apache Kafka and Flink, designed time-series data storage with TimescaleDB, built ML prediction pip…
Professional Journey
Solutions Architect
Sustainext
Own the technical vision for a platform serving 100+ enterprise clients. Ship AI features, design fault-tolerant microservices, and mentor engineering teams.
Senior Software Developer
Sustainext
73% faster dashboards. 60% better system performance. Led architecture decisions that scaled the platform 10x without breaking.
Software Developer
Valenta / ACMO
Shipped production apps for enterprise clients across India & Australia. Built reusable React systems still running today.
What Colleagues & Clients Say
"Mahinder architected our entire sustainability platform from the ground up. His ability to design scalable microservices, integrate AI for data analysis, and lead the frontend team resulted in a system serving 100+ enterprise clients."
Rajesh Mehta
CTO at Sustainext
"When we needed someone to redesign our legacy monolith into microservices, Mahinder delivered. He implemented event-driven architecture, set up proper CI/CD pipelines, and integrated LLM-powered analytics that transformed our platform."
Priya Sharma
Engineering Director at DataWorks
"Mahinder built our AI workflow automation platform end-to-end - from system architecture to n8n integrations to OpenAI-powered features. His full-stack expertise and understanding of AI systems was exactly what we needed."
Michael Chen
Founder at AutomateFlow
Let's Build Something Together
Full-time • Contract • Consulting