What a kuroko is
In Japanese theatre — kabuki and bunraku — a 黒子 is the stagehand dressed head to toe in black who moves the scenery, hands an actor a prop mid-scene, and works the puppet in full view of the audience. Everyone can see them. By convention, nobody does.
The black is an agreement between the stage and the room: what matters is the performance, not the hands making it possible.
Why an engineering company took the name
Software behaves the same way when it is done well. Nobody admires the authentication flow, the migration that ran clean at 2am, or the retry that caught a bad request before a customer ever saw it. People notice the product, and the business it moves. Engineering earns its keep by disappearing.
It is also how we work with clients. The product carries your name, your brand, and your relationship with the customer. We are not in the frame.
What that means in practice
Decisions stay yours. We bring the options, what each one costs, and a recommendation — then you make the call, and you can inspect how we got there.
The work is handed over, not held. Code, infrastructure and documentation live in your accounts, readable by whoever comes after us.
We say so when an idea is a bad one. A stagehand who lets the set fall over is not being discreet.
Where we work
One team, fully remote, working across the United States and Israel. That is why this site reads natively in English and in Hebrew, rather than in one language with the other bolted on.