SAI RAHUL
Open to the right build
Founding / senior backend engineer · Bengaluru / India

I make complex products feel simple.

8+ years designing and scaling the systems behind fintech, SpaceTech, social and entertainment products. I’m at my best owning a large slice of the product from 0→1 and 1→100.

8+years in early-stage teams
throughput on same resources
2.5krequests / second
140K+AI audience on X
Selected work

Proof, not promises.

A few systems I’ve owned end to end, with the outcome that mattered attached.

02 / Pixxel

Making satellite data orderable.

Architected the end-to-end ordering platform powering a core revenue path, across 5 teams and 5+ services.

Domain-Driven Design migrationPlatform-wide IAM90% Go test coverage
Go · PostgreSQL · Frontier IAM
03 / Wakao

Video infrastructure from zero.

As the first employee, designed the backend, processing pipeline and social primitives for a video platform.

MediaConvert pipelineEvent-driven social featuresNear-real-time rankings
Go · AWS · Redis · DynamoDB · SQS
04 / Gifskey

5× more capacity on the same resources.

Migrated a high-traffic backend from PHP to Go and rebuilt the search path around better data and caching decisions.

500 → 2,500 req/secSearch: 1,000ms → 200msTop queries: 50ms
Go · SQL · Nginx · AWS · Caching
05 / Wysh

Product backend, payments and cloud from scratch.

Built the foundation for a commerce product, including unified payment gateways, dynamic pricing and messaging.

4 payment gatewaysDynamic pricing engineBulk messaging tools
Go · Razorpay · Stripe · PayPal · AWS
Beyond the résumé

How I think in public.

Technical depth, product judgment, and the ownership to ship.

X / @sairahul1

Building with AI. Sharing what’s wild, practical and next.

140K+ people follow along for notes on agentic workflows, indie products and the changing shape of software work.

Open X profile
0→1 ownership

I build the first version and the system behind it.

I’ve been the first engineer at a startup, owning backend foundations from architecture through launch — and the product decisions around them.

Talk about an early-stage role
Indie projects

Small bets, shipped often.

I’ve tried a lot of ideas and doubled down on NicheTrafficKit once it started making money — a practical loop of building, learning and iterating.

Visit NicheTrafficKit
Working style

Calm systems. Clear ownership. Useful defaults.

I like difficult backend problems, tight feedback loops and teams that care about the user on the other side of the API.

Talk about a problem
Contact

Have a hard problem? Let’s make it legible.

If you’re building something ambitious and need a backend engineer who can own the shape of the system, I’d like to hear about it.

Experience

Experience details