Engineering
Reading the Duolingo Handbook as a Software Engineer
Practical engineering lessons I took from the Duolingo Handbook, and how they map directly to building scalable, product-driven software teams
Aldy Kusuma
I enjoy turning complex problems into simple, usable experiences. Building crypto trading interfaces at Pintu, and sharing what I learn along the way.
Recent writing
Performance
How We Keep Crypto Apps Fast Under High-Frequency Updates
Practical strategies for frontend engineers to handle real-time crypto data without degrading app performance—from batching updates to atomic Zustand subscriptions.
Career
My Experience as a Frontend Engineer in Crypto
What it is really like to work as a frontend engineer in the fast-paced world of cryptocurrency exchanges
Engineering
What I've Learned About Under vs Over Engineering
Learn when to write simple code vs complex solutions - a practical guide to avoiding over-engineering while keeping your code maintainable and scalable.
Tips
The Problem With 'Hey, Got a Sec?'
Why vague pings like 'got a sec?' and 'can I ask a question?' slow everyone down — and what to write instead.
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