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build-with-deepak/README.md

Hi, I'm Deepak Kumar Jha 👋

Technical Lead · Senior Full-Stack Engineer

Node.js · Express.js · NestJS · Angular · React · AWS · GCP · Generative AI / LLM Integration · Microservices

📍 New Delhi NCR, India · Open to full-time roles in Delhi NCR and Dubai/UAE · Immediate joiner


🚀 About Me

60 million users. Sub-100ms latency. Zero-downtime deployments. That's the bar I build to.

I'm a Technical Lead and Senior Full-Stack Engineer building cloud-native backends, enterprise SaaS platforms, and AI-powered systems for companies across India, the UAE, the US, and Europe.

🛠️ What I Do

I design and ship production-grade systems using Node.js, Express.js, NestJS, AWS, and GCP — from system design and microservices architecture through to CI/CD, observability, and live deployment.

My current focus: building Generative AI products — RAG pipelines, LLM-integrated backends, agentic AI workflows, and multi-model routing systems — using OpenAI, Gemini, Claude, and local inference via Ollama.

🏆 Who I've Built For

Company Impact
SmartSitting (NYC) Technical Lead — scaled from zero to a full AI-native platform; 3x growth in weekly candidate applications via Gemini + RAG-powered features
Indegene Led 12–14 engineers migrating a pharma-tech SaaS monolith to microservices; cut API response times from 10–40s to 5–7s
HT Media / LiveHindustan.com Architected backend for 60M+ monthly users; cut API latency from 600ms to sub-100ms via CDN + Redis + Elasticsearch redesign
Deutsche Telekom / Radisys Led interface engineering for DT Access 4.0, managing 8–10 engineers within a 300-person global carrier-grade programme
Publicis Sapient Fortune 500 digital transformation for Bed Bath & Beyond and The Children's Place on React + Node.js + PostgreSQL stacks

⚙️ Core Stack

Backend: Node.js · Express.js · NestJS · TypeScript · PostgreSQL · MongoDB · Redis Cloud: AWS · GCP · Docker · Kubernetes · GitHub Actions · Cloud Run GenAI: RAG Pipelines · LLM APIs (OpenAI, Gemini, Claude) · Vector Embeddings · Agentic AI · MCP · Prompt Engineering · Local LLM (Ollama) Architecture: Microservices · System Design · Event-Driven · API Design

💬 Let's Talk

I'm open to full-time Technical Lead and Senior Full-Stack Engineer roles in Delhi NCR and Dubai/UAE, and available to join within 15 days. Degree MOFA-attested.

📩 DM me here or connect at linkedin.com/in/build-with-deepak


🛠️ Production-Grade Tech Stack

Domain Stack
Backend Node.js, Express.js, NestJS, TypeScript
Frontend React.js, Angular (v2–v17), TypeScript
AI / LLM Gemini, Claude, OpenAI, RAG Pipelines, Ollama (Llama 3, Mistral), MCP
Cloud (AWS) EC2, Lambda, S3, ECS, RDS, CloudFront
Cloud (GCP) Cloud Run, Cloud Functions
Databases PostgreSQL, MongoDB, MySQL, Redis, Elasticsearch
DevOps Docker, Kubernetes, Terraform, GitHub Actions, GitLab CI
Architecture Microservices, Event-Driven, CQRS, DDD, Multi-Tenant SaaS

🏗️ Work Experience

Role Company Period
Technical Lead SmartSitting — Childcare Placement Marketplace, New York (Remote) Dec 2025 – Present
Solution Architect Indegene Limited Feb 2025 – Dec 2025
Technical Analyst Toppan Merrill LLC Apr 2024 – Feb 2025
Tech Lead / Solution Engineer Radisys — Deutsche Telekom Partner Oct 2021 – Apr 2024
Associate Architect / Tech Lead HT Media Ltd. (Hindustan Times) Nov 2018 – Sep 2021
Senior Associate – Full Stack Publicis Sapient (SapientRazorfish) Jun 2017 – Nov 2018
Senior Software Developer NTT DATA Global Delivery Services Jan 2016 – Jun 2017
JavaScript Developer Avalon Information Systems Mar 2015 – Jan 2016
Full-Stack Developer (Contract) Independent Consultant Feb 2013 – Mar 2015

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    Technical Lead · Senior Full-Stack Engineer | Node.js · Express.js · NestJS · Angular · React · AWS · GCP | New Delhi NCR, India · Open to Dubai/UAE · Immediate joiner | build-with-deepak.com

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    AI-powered quiz generator (Next.js 15 + Supabase + OpenAI) with real-time updates, a curated-question fallback, and progress tracking.

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    Cost-optimized LLM request router (NestJS + Angular) that classifies each prompt's complexity, sensitivity and latency needs to route it to the cheapest adequate model — local Ollama inference or c…

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    Model Context Protocol (MCP) agent demo (NestJS + Angular) with a live tool-call timeline — Postgres, weather API and calculator tools, SQL-injection guardrails, and visible error recovery when a t…

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    Self-hosted, privacy-first RAG pipeline (NestJS + Angular + Qdrant + Ollama) — upload a PDF, get cited answers, with nothing sent to a third-party model API. Built for regulated data: banking, heal…

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