Hi, I'm Abhishek — I build the invisible infrastructure that keeps apps fast, reliable, and scalable. Based in Delhi, India.
A backend engineer who loves building systems that scale, observing them run, and fixing what breaks.
I'm a Software Engineer at Cognam Technologies specializing in Java, Spring Boot, and distributed systems. I've optimized search by 70%, reduced storage by 60%, and built event-driven pipelines handling 5,000+ notifications per second. Beyond code, I mentor junior developers and volunteer with Robin Hood Army for food and education drives.
Hands-on experience building and shipping enterprise-grade backend systems.
Projects ranging from production systems to learning experiments — all backend first.
Scalable notification delivery system for Email, SMS and Push. Asynchronous event-driven architecture handling massive throughput with full observability.
Video conferencing platform for virtual therapy and mental health. Secure therapist-patient sessions with appointment booking and payment integration.
Spring Boot backend for a remotely operated ocean probe. Navigation rules in the domain layer, YAML-driven config, stateful REST API with in-memory position tracking.
Backend fitness application built to master microservices fundamentals — exploring service decomposition, inter-service communication and Spring Boot patterns.
Tools and technologies I use to build systems that actually work in production.
Academic foundation that shaped how I think about computing and problem-solving.
I'm open to new opportunities, collaborations, or just a good backend architecture conversation. Drop a message and I'll reply within 24 hours.