Software

Engineer

Hey!

I'm Parveen Kumar, a software engineer focused on backend and distributed systems.

I'm a backend engineer drawn to the parts of a system that stay invisible when they're working — rate limiters, circuit breakers and failover logic, idempotency keys, atomic transactions. That's the concurrency and fault-tolerance layer: the stuff that has to hold when a dependency drops, a request gets retried, or load spikes. Below is a slice of what I've been building.

©2026/Creating since 2023

Parveen Kumar

Parveen Kumar

What I do

Services

Backend Systems

REST APIs
Rate Limiting
Auth

Distributed Systems

Reverse Proxies
Failover
Circuit Breakers

Data Pipelines

Ingestion
Aggregation
PostgreSQL

LLM Infrastructure

Streaming
SSE
Gateways

GenAI & RAG

Retrieval
Embeddings
Agents

Selected work

Featured
Projects

View all work ↗

PulseStream

Go · PostgreSQL

Production-style real-time analytics pipeline — rate-limited ingestion, worker-pool aggregation, PostgreSQL rollups, REST API, Grafana.

StreamGuard

Resilient Go reverse proxy for streaming LLM APIs — deterministic failover, budget enforcement, and explicit SSE recovery events.

Aegis

Java 21 · Spring Boot

Distributed rate-limiting platform — Java 21 + Spring Boot + Redis with atomic Lua algorithms and a React control plane.

AutoDev.Py

Python · CrewAI

Local, self-correcting Python coding agent — plans, writes, and runs code in a Docker sandbox, retrying on the real traceback.

SyncHub

Next.js · WebRTC

Full-stack video-conferencing platform built from scratch on native WebRTC + mediasoup — no third-party media SDKs.

ExchangeOS

TypeScript · Node.js

Low-latency order-matching engine — price-time-priority matching, fixed-point math, Redis Pub/Sub, TimescaleDB.

View all work ↗

Writing

Thoughts

Blog coming soon — notes on backend systems, distributed infra, and things I break along the way.

Contact

Let's talk.

Have a project or need help? Fill out the form, and I'll get back to you soon.

parveen.iiitdwd@gmail.com

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