Currently available · INDIA

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Portfolio / Field Notes · INDEX 2026

Building things
that don't
fall apart.

I'm Abhinav — a software engineer based in India. I write code, ship products, and keep field notes on the craft. This is where I think out loud.

Read the writing About me

/ Operator

ONLINE

Identifier

@abhinavsingh

/ Tenure

Years writing code

/ Essays

Browse →

/ Locale

28.6°N 77.2°E

India

Local time

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TypeScriptReactNext.jsTailwindNode.jsPostgresRedisDocker

TypeScript★React★Next.js★Node.js★Python★Go★Postgres★Redis★Distributed Systems★Developer Tools★Design Engineering★Performance★TypeScript★React★Next.js★Node.js★Python★Go★Postgres★Redis★Distributed Systems★Developer Tools★Design Engineering★Performance★

/ Writing

Notes & essays

All 25 posts →

Featured

Start hereKafka series

Why Kafka Exists

What problem Kafka solves — durable logs, decoupled services, and replay — and when a simple HTTP call is still the right answer.

Read guide →

Latest

System Design2 min read

The Shipping Email Went Out Twice.

order-9912 shipped once. The customer got two emails. The second one was the same fact, delivered again.

Oct 15, 2026Read →

Algorithms2 min read

The Urgent Shipment Waited Behind Ordinary Orders.

order-8841 had to leave today. The line shipped two ordinary orders first because they had been waiting longer.

Oct 13, 2026Read →

Distributed Systems5 min read

The Pile Drained. order-9912 Was Reserved Twice.

Lag hit zero. Packing still paged. Inventory had reserved the same order twice.

Oct 10, 2026Read →

Algorithms2 min read

One Cycle, and the Same Order Never Finished.

Packing’s next step pointed back at the order it was already in. The walk never reached a last step.

Oct 06, 2026Read →

/ 02 — Topics

What I think about

BUILD · SHIP · WRITE · REPEAT✦2026 EDITION✦CRAFTED IN INDIA✦BUILD · SHIP · WRITE · REPEAT✦2026 EDITION✦CRAFTED IN INDIA✦BUILD · SHIP · WRITE · REPEAT✦2026 EDITION✦CRAFTED IN INDIA✦BUILD · SHIP · WRITE · REPEAT✦2026 EDITION✦CRAFTED IN INDIA✦BUILD · SHIP · WRITE · REPEAT✦2026 EDITION✦CRAFTED IN INDIA✦BUILD · SHIP · WRITE · REPEAT✦2026 EDITION✦CRAFTED IN INDIA✦BUILD · SHIP · WRITE · REPEAT✦2026 EDITION✦CRAFTED IN INDIA✦BUILD · SHIP · WRITE · REPEAT✦2026 EDITION✦CRAFTED IN INDIA✦BUILD · SHIP · WRITE · REPEAT✦2026 EDITION✦CRAFTED IN INDIA✦BUILD · SHIP · WRITE · REPEAT✦2026 EDITION✦CRAFTED IN INDIA✦

/ 03 — About

Operator's
manual.

/ Background

I'm a software engineer with 0+ years of experience building web apps, developer tools, and the unglamorous middle layers that keep systems honest.

/ Care about

›Performance & correctness over speed of shipping
›Honest design — no dark patterns, no tracking pixels
›Writing clearly about complicated things
›The boring parts that make things last

/ Currently

Writing software for a living. Writing about software for myself. Reading too much. Available for interesting problems and the right kind of trouble.

Say hello

Building things that don'tfall apart.