Iman Tumorang

Fractional software architect, CTO and tech lead

Choose the trade-off. Own the outcome.

With over a decade of experience in leading engineering initiatives, I specialize in building scalable product platforms, defining architectural direction, and enabling high-performing teams across startups and growth-stage companies.

Work with me See my resume

Everything I'm up to, as a context diagram.

What I'm working on

My day job, and what I do on the side.

Staff Software Engineer, Veriff

Product Platform, since 2024

Letting teams ship new verification flows without a mobile release.
app release server push
Turning the API gateway into a platform other teams build on.
monolith API Envoy
Setting the product platform's architecture direction and SLOs with engineering leadership.
many directions one north star

On the side

fractional CTO and architect

SoftwareArchitect.ID

Helping companies untangle monoliths, ledgers and payment platforms.

co-founder and editor

Easyread

A Medium publication with 2.7K readers.

learning in public

Deep Learning, by Hand

Neural networks from scratch, worked out by hand.

maintainer

Open source

go-clean-arch, faker and dbresolver.

Previously at Xendit: led the ledger, billing and auth re-architectures. The details are in my resume →

Recent writing

Notes from what I’m learning.

All posts on Medium

Work with me

I’m open to fractional and advisory roles as a software architect, CTO or technical leader. If you’re building platforms in any of these areas, I’d love to compare notes.

Platform architecture
Payment systems
Developer experience
Scalable SaaS infrastructure

Visit SoftwareArchitect.ID See past engagements

Say hello

iman[at]tumorang[dot]com