AI Engineering & LLM Applications
LLM integrations, RAG and document AI, semantic search, AI matching systems, and real-time voice applications.
Available for select engagements
AI Product Engineer & Senior Backend Engineer
I build production backend systems and applied AI products that hold up at scale.
4+ years of experience architecting and building microservices, cloud infrastructure, and AI-powered product workflows — from system design and implementation to deployment, scalability, reliability, and cost optimization.
4+ yrs
Production engineering experience
AWS Solutions Architecture
Cloud architecture & infrastructure
AI / LLM
Applied product systems
Jigar Prajapati
AI Product & Senior Backend Engineer
200K+
Users served by production systems I've built
What I Build
Backend Development, AWS Cloud Architecture & AI Engineering — End to End.
I design and build scalable backend systems, AWS cloud infrastructure, and AI-powered products from architecture and implementation through deployment, reliability, and production operations.
Backend Development & API Engineering
Scalable REST APIs and microservices using Node.js, TypeScript, Python, and FastAPI — built for performance, reliability, and maintainability.
AWS Cloud Architecture & Infrastructure
Architecting AWS environments across serverless, containerized, and server-based workloads, choosing the right infrastructure for scalability, reliability, security, and cost efficiency.
Selected Work
Selected AI, Backend, Cloud & Platform Engineering Projects.
A selection of production systems I've designed and built across AI, backend engineering, cloud infrastructure, and platform development.
Crayon.jobs
AI-powered CV parsing, semantic candidate-job matching, and real-time AI interviews built for a scalable recruitment platform.
200K+
Users served on the platform
Node.js
Python
AWS
PostgreSQL
Microservice
OpenAI
My Contribution
Backend Architecture • AI Engineering • Cloud Infrastructure
The Bridge
A private AI reflection platform for better thinking, combining daily guided reflection, 144-second conversations, and curated reading recommendations.
Python
FastAPI
AWS
DynamoDB
Claude
My Contribution
Backend Architecture • AI Engineering • AWS