DevOps · CI/CD Pipelines · Ethereum Infrastructure
SiddarthKumar.
I build and maintain the infrastructure behind decentralized software: CI/CD pipelines, multi-platform build systems, and Ethereum validator nodes. Currently at IFT, previously shipping across mobile, desktop, and blockchain.
The work,
plainly
stated.
"Get it working first. Make it good later. Momentum matters more than perfection."
Toolchain
At IFT, I look after production deployments and on-call for Ethereum light client infrastructure. Nix derivations, nftables firewall migrations, benchmarking nimbus-eth1, keeping CI green when Apple ships a new Xcode. The kind of work that's invisible when it runs well and very visible when it doesn't.
Before this I was at Status, where I took on the React Native 0.63 to 0.73 upgrade that nobody wanted to touch. I also owned the build systems across iOS, Android, macOS, Linux, and Windows. Jenkins pipelines, reproducible Docker environments, Nix for dependencies, Fastlane for releases.
I started out as the first engineer at a small consultancy and ended up running it as CTO. Grew the team to 30, shipped Laravel sites and React Native apps, set up our first CI pipelines. I believe in reproducible builds, open-source tooling, and doing things properly rather than quickly.
Production deployments, on-call rotations, and build infrastructure for Ethereum light clients. Built nimbus-eth1 benchmarking infra from scratch, migrated fleets from iptables to nftables, and lead macOS/Xcode upgrades across CI.
Led the React Native 0.63→0.73 upgrade for a decentralised messaging app nobody else would touch. Built local device pairing, moved QR generation to Go backend, and owned CI/CD across iOS, Android, and desktop.
Source Elements: Product Engineering
Worked directly with the CEO to build a new-generation dashboard in Vue 2. Shipped Dark Mode and coordinated API changes with the backend team.
Centillion: Founding → CTO
First technical hire. Grew the team from 1 to 30. Built core products, set up CI pipelines in Bitbucket/GitLab, shipped 10+ Laravel sites and complex mobile apps in React Native and Xamarin. Trained 300+ engineering students.
From the
notebook.
Notes on build systems, Ethereum infrastructure, and the occasional debugging rabbit hole. Written when something is worth writing down.
Currently playing
What's in
the headphones.#
Long builds need good music. This playlist has been running on the build server since 2023. Updated when something earns a spot.
# Spotify · Playlist · Public
My time
is limited.
I'm currently heads-down on a few things. Book a slot and I'll review it. No guarantees, but I do read every request.
Serious inquiries only
Request a slot · I'll confirm if I can make it work