Software studio.
Strategy, implementation, delivery.

Engineering. Product strategy. AI where it fits.

Senior-only · three engineersEU · client work globalBooking · Q3 2026
SS
Siere Advisor
AI · scoped to fit-check · two minutes
online
Hi — I'm the Siere advisor. I'll ask you a couple of questions and tell you, honestly, whether we're the right studio for what you're working on. Where would you like to start?
AI advisor · rate-limited & scoped — for anything else, book a call →

Siere SoftWe make your dreams come true.Carefully. On a written spec. With receipts.

WHAT WE'RE BUILDING

One product, so far. More on the way.

We dogfood our own tools on every engagement. If a pattern keeps coming up, we ship it as a product.

HOW WE WORK

Senior-only, spec-first, opinionated about scope.

No juniors hidden behind the masthead. No 60-page proposals. We write a spec, agree it, then build the thing — and we'll tell you straight when we're not the right shop for it.

01
Three engineers. Eight years minimum.

Everyone who'd touch your work has shipped production systems for the better part of a decade. We don't sub out to juniors and we don't grow until we can keep that line.

02
A written spec before a single line of code.

Outcomes, scope, risks, and what's noton the table — written down, on a page, before week one. It's how we both find out if we agree.

03
AI-native, not AI-curious.

We use AI assistants on every engagement — our own harness, in fact. It's why a team of three can do the work of a team of eight, without the corresponding bill.

04
We disqualify ourselves.

If your problem is mostly frontend, or mostly enterprise change management, or mostly slide deck — we'll send you somewhere better. Quickly.

Ready to talk?

hello@sieresoft.com · Reply within one working day, usually less.