Arjun Mehta

Backend-leaning full-stack engineer. I build distributed systems that stay boring under load — event pipelines, APIs, and the infrastructure that keeps them honest. Currently scaling payments at a Series C fintech.

00/ Index

01/ About

I started writing code to automate my college attendance spreadsheet and never really stopped automating things. Over eight years I've moved from scrappy startup monoliths to designing systems that process millions of transactions a day. I care most about observability, clear failure modes, and APIs that are a pleasure to integrate against. When a system is well-designed, on-call gets quiet — that quiet is the goal.

Make complex systems feel simple for the people who build on top of them.

Reliability · Clarity · Pragmatism · Mentorship

02/ Selected Work

1. 01

   ledgerd

   Open-source double-entry ledger engine in Go. 3.4k stars, used in production by 5 fintechs.

   Go · OSS · 2.1k⭐
   
2. 02

   Flux Rate Limiter

   Distributed token-bucket limiter with Redis + Lua. Sub-millisecond decisions at 200k req/s.

   Rust · Redis
   
3. 03

   obsctl

   A CLI that turns OpenTelemetry traces into readable incident timelines.

   CLI · Observability
   
4. 04

   schema-diff

   Zero-downtime Postgres migration planner. Catches lock-escalation risks before they page you.

   PostgreSQL · DevTools
   

03/ Experience

8 years building payments, data, and platform infrastructure

09/ References

10/ Recognition

12/ Contact