BACKEND/FULLSTACK ENGINEER
Sarthak
Full Stack Engineer building scalable web apps. Proficient in integrating LLMs and AI agents into modern web architectures.
Skills
What I work with.
NestJS 
ExpressJS 
Apollo 
Fastify 
Apache 
nginx 
PostgreSQL 
MongoDB 
MySQL 
D1 
Redis 
OpenTelemetry 
Prometheus 
Grafana 
k6 
Sanity 
Strapi 
Vendure 
gRPC 
GraphQL 
GROQ 
NextJS 
Astro 
ReactJS-Core 
VueJS 
Supabase 
Firebase 
Docker/Kubernetes 
CI/CD 
Linux scripting 
AWS 
GCP Selected Work
Projects
GoChat
Multi-channel chat aggregator service that listens for incoming messages from external platforms (WhatsApp Business, Telegram, Instagram, etc.) and provides a unified API for managing conversations.
CRM based on nestjs
Multi-tenant CRM platform built with NestJS, PostgreSQL, and microservice architecture. Manages leads, deals, contacts, companies, activities, and tasks with organization-scoped data isolation and granular RBAC.
Writing
From the Blog
What Jaeger Taught Me That Postman Never Could
I opened a Jaeger trace expecting to see 104ms distributed across spans. The child spans added up to 14ms. Somewhere in between, 90ms had vanished. Postman had never shown me anything like this.
February 8, 2026My first day with k6 load testing
k6, Day One: The Good, the Bad, and the Ugly
February 7, 2026Here's what GoChat is
Multi-channel chat aggregator service that listens for incoming messages from external platforms (WhatsApp Business, Telegram, Instagram, etc.) and provides a unified API for managing conversations.
January 18, 2026Contact