Rounakk

BACKEND / DISTRIBUTED SYSTEMS / CLOUD

I build
backend systems
that survive
production.

Distributed systems, real-time data pipelines, high-concurrency APIs, and cloud infrastructure built for reliability and scale.

View my workView CV
FOCUS AREA:
Focus area: BACKEND ENGINEERING
Rounakk - Building scalable backend systems
TECH I WORK WITH
Node.js
TSTypeScript
PostgreSQL
Redis
Docker
Kubernetes
awsAWS
NNext.js
EXExpress.js
01

Selected Work

Real systems, real data, real impact.

View all projects

01 / TRADING & FINTECH

NSE Stocks Arbitrage Bot

NSE Stocks Arbitrage Bot

Automated arbitrage trading bot executing cross-exchange strategies using real-time market data, with 15% annualized returns in backtests.

1M+

data points daily

15%

annualized returns

<200ms

latency

TypeScriptNext.jsExpress.js
View project

02 / OBSERVABILITY & CLOUD

Observability Platform

Observability Platform

Real-time observability dashboard and REST APIs for monitoring 50+ microservices, deployed with Docker, Kubernetes and ArgoCD.

50+

services monitored

40%

faster delivery

24/7

visibility

TypeScriptNestJSKubernetes
View project

03 / SYSTEMS PROGRAMMING

Memory Allocator in C

Memory Allocator in C

Custom memory allocator using segregated free lists with coalescing and block splitting to reduce fragmentation and improve allocation efficiency.

C

systems language

Free lists

allocation strategy

Aligned

memory blocks

CMakefile
View project
02

Experience

A concise view of my professional journey.

Mar 2026 — Present

Proto Corp Pvt Ltd

Software Engineer Intern

•Built real-time drone fleet monitoring platform with MQTT/EMQX and Socket.IO.
•Deployed and maintained services on AWS with Docker, improving deployment time by 35%.
•Worked on telemetry ingestion, fleet management and live video streaming.
Stack:MQTTEMQXSocket.IOAWSDocker

Sep 2025 — Jan 2026

Torqis Horizons

Backend & Cloud Engineer Intern

•Engineered serverless e-commerce backend using AWS Lambda, API Gateway and DynamoDB.
•Integrated PhonePe with secure webhook processing and idempotency controls.
•Implemented AWS Cognito auth and S3 + CloudFront asset delivery.
Stack:AWS LambdaAPI GatewayDynamoDBCognitoS3CloudFront

Aug 2025 — Oct 2025

GoLaddu Food Products

SDE Intern

•Built React Native frontend and Supabase backend with real-time user actions.
•Enabled real-time data sync using Supabase subscriptions.
•Set up GitHub Actions CI/CD, reducing deployment time by 30%.
Stack:React NativeSupabasePostgreSQLGitHub Actions

Feb 2025 — Jul 2025

Strmly Technologies

Software Engineer Intern

•Architected video streaming platform with Next.js, NestJS and MongoDB.
•Implemented Redis caching (30% reduction in backend load).
•Integrated AWS S3 + CloudFront for media delivery (25% faster load times).
Stack:Next.jsNestJSMongoDBRedisAWS S3CloudFront
03

Building in Public

Consistent commits, experiments, projects, and the occasional rabbit hole.

View on GitHub

1,144 contributions in 2026

JanFebMarAprMayJunJulAugSepOctNovDec
MonWedFri
LessMore
1,144

Contributions in 2026

52

Public repositories

Open Source

Passionate about building together

04

Writing on Medium

Technical deep-dives, architectural lessons, and notes on systems.

View all articles
The Cloud Isn’t Magic: It’s Someone Else’s Infrastructure

The Cloud Isn’t Magic: It’s Someone Else’s Infrastructure

Oct 4 · 5 min read
I Built a Self-Learning AI Agent in TypeScript — But It Isn’t Actually “Training” the LLM

I Built a Self-Learning AI Agent in TypeScript — But It Isn’t Actually “Training” the LLM

Sep 4 · 10 min read
Understanding Latency and Throughput: The Twin Pillars of System Performance

Understanding Latency and Throughput: The Twin Pillars of System Performance

Aug 31 · 15 min read
05

About

I'm a backend and systems engineer focused on distributed architectures, real-time data pipelines, and cloud infrastructure. I care deeply about latency, fault tolerance, and writing software that stays reliable under real-world production traffic.

Distributed Systems
Real-Time Pipelines
Cloud Infrastructure
High-Concurrency APIs
Get in touch
06

Let's Work Together

Have an interesting systems challenge, high-scale engineering role, or collaboration in mind? I'm always open to discussing new opportunities.

Book a 15-min chatEmail me