I am a Tech Lead and Full-Stack Engineer with 12+ years of experience building production-grade web and mobile products. I lead cross-functional teams, design scalable architecture, and ship AI-first features powered by LLMs.
- Lead engineering teams from discovery to production delivery.
- Build full-stack products using
.NET,Node.js,React, andReact Native. - Design AI-powered workflows with
OpenAI,RAG,LangChain, andpgvector. - Deploy cloud-native systems on
AWSandAzure. - Mentor developers and drive code quality through architecture reviews.
C# TypeScript JavaScript Python ASP.NET Core Web API Node.js NestJS React Angular React Native Electron
OpenAI GPT-4 Embeddings LangChain RAG Pipelines Prompt Engineering AWS Bedrock
PostgreSQL SQL Server MySQL MongoDB Redis
AWS (EC2, S3, Lambda, RDS, SQS, SES, CloudWatch) Azure Functions Firebase Git Postman Jira Azure DevOps
Stack: React Native ASP.NET Core Web API OpenAI GPT-4 PostgreSQL
Built a personalized AI assistant inside for rewards platform using GPT-4 + RAG to serve dynamic offer recommendations.
Stack: Node.js NestJS React OpenAI pgvector AWS S3
Delivered an end-to-end platform for document upload, OCR, semantic search, and natural-language Q&A.
Stack: React Node.js OpenAI GPT-4 Firebase Twilio
Built a multi-channel support bot with escalation logic, memory, and sentiment handling; reduced support ticket load by ~40%.
Stack: Angular .NET Core Web API MongoDB AWS
Built trading analytics workflows for recording, reviewing, and improving day-trading performance.
- Freelance Consultant — Full-Stack & Architecture (Mar 2019 - Present)
- Lead Developer — If Else Cloud Ltd (Mar 2018 - Mar 2019)
- Digital Specialist / .NET Developer — Adolpha, Krtya, Idea to Working, Techdeed (2014 - 2018)
- Prefer simple architecture that can scale cleanly.
- Design APIs and data models for long-term maintainability.
- Ship fast, but keep observability and reliability first-class.
- Use AI where it creates measurable product impact, not hype.
- Build teams that own outcomes, not just tickets.
- AI copilots and domain-specific assistants
- LLM integration with enterprise workflows
- Scalable backend systems and performance optimization
- Mentoring and engineering leadership
- Email:
khatri.karankhatri.karan@gmail.com - LinkedIn:
https://www.linkedin.com/in/karan12990
Open to senior engineering leadership, principal engineer, and AI product engineering roles.