AI-first software studio

Senior engineers ship your whole product — end to end, in weeks.

Frontend, backend, infrastructure, AI — owned by seniors, not handed across a five-person team. You pay for outcomes, not overhead.

Get a free audit See the work →

Start here

Pick your way in

Defined, fixed-price ways to work with us. Start small, no big commitment.

FREE · NO COMMITMENT
01

Free AI-readiness & UX audit

A 45-minute teardown of your product or stack, plus a short written report. No commitment.

Free · 45 min Get the audit →
02

Legacy module renovation

We renovate one module of your existing app — modern, tested, shipped in weeks, not months.

from 5–20k PLN See how →
03

SaaS consolidation

Replace your separate CRM, ERP and invoicing tools with one system, built on Open Mercato.

from X · live in weeks See how →
04

Workflow automation sprint

Automate one painful workflow end-to-end in a fixed two-week sprint.

from X · 2 weeks See how →

Why us

Three things that make this different

01 /

Outcomes, not headcount

You pay for the result, not a five-person team.

1 senior + AI owns it end to end.

02 /

AI-first delivery

AI is how we work, not a buzzword.

Parallel AI agents; seniors review and ship.

03 /

Open-source-first

Start from proven OSS, customize the last 20%.

Open Mercato for commerce/CRM/ERP.

AI-first delivery

How we work

A repeatable loop — brief in, production out, in days not sprints.

  1. 01
    Brief
    You describe the problem. We scope it into a fixed deliverable.
  2. 02
    AI agents (parallel)
    Multiple AI agents run in parallel — code, tests, docs, design tokens.
  3. 03
    Senior review
    A senior engineer reviews, refines, and owns every line that ships.
  4. 04
    e2e tests + demo data
    Automated UI and API tests. Always demoable — never "works on my machine".
  5. 05
    Production
    CI gates quality. You get a working product, not a Jira ticket.
days, not sprints  ·  0 PMs  ·  0 QAs  ·  always demoable

What you're not paying for

Every role below adds overhead without adding the thing you actually need — shipped product.

  • Project manager coordination tax
  • Scrum master ceremony overhead
  • Dedicated designer handoff delays
  • Frontend specialist silo cost
  • Backend specialist silo cost
  • QA team manual regression
Instead, you get
1 senior + AI — end to end
FULL OWNERSHIP

Case studies

Selected work

Real problems. Shipped solutions. Outcomes, not process.

Commerce · Open Mercato
Groomershop

The missing OMS that finally connected all their tools.

Live in [ N ] weeks
SaaS · Rebuild
MyEvaluations

Rebuilt one aging module of their SaaS — modern, tested, shipped.

Live in [ N ] weeks
Product + Design · AI-first
Covo · Tripsomnia · Tournee · Loophole

Product and designs delivered fast, end-to-end.

Live in [ N ] weeks

// Metrics are placeholders pending client sign-off.

From clients

What they said

They scoped it in one call, shipped a working demo in the first week, and had it in production before I expected to have even finished briefing another agency.

— Founder, Groomershop

// Placeholder quote pending client approval

I was skeptical about AI-built code quality. The test coverage and demo environment they shipped on day one settled that immediately.

— CTO, MyEvaluations

// Placeholder quote pending client approval

Need commerce, CRM or ERP?
Start from proven open source — live in weeks, not quarters.

Open Mercato is the proven 80% — battle-tested order management, CRM, invoicing, and inventory. We customize the last 20% to fit your business exactly. No re-invention. No quarter-long setup. Ship to production fast, own it completely.

Explore Open Mercato →
80% — proven open source
your 20%
// audited, maintained, community-backed // your domain, your edge
  • 80%
    Proven open-source core Order management, CRM, invoicing, inventory — already built, tested, and running in production.
  • 20%
    Your tailored layer Custom workflows, integrations, branding, and logic that make it yours — built in weeks, not quarters.

Built in the open

We don't just use open source — we maintain it.

Shipping production code on open-source foundations means we have skin in the game on reliability.

Open Mercato

Core author and maintainer. The commerce/CRM/ERP foundation we build on for clients and run as our own agency stack.

Core / Agency
Next.js

Contributor. We use Next.js across client products and have contributed fixes and improvements upstream.

Contributor
MikroORM

Contributor. Our ORM of choice for TypeScript backends — we've contributed type improvements and edge-case fixes.

Contributor

The studio

Jacek Tomaszewski

Founded by Jacek Tomaszewski — 20+ years shipping full-stack products, end to end. TypeScript, infrastructure, commerce, AI. Previously at scale; now focused on outcomes.

jtom.me/cv →

FAQ

Questions you're probably asking

Is AI-built code actually reliable?
Every feature ships with automated end-to-end tests — including UI — plus demo data. Quality is gated in CI before anything reaches production. You can run the tests yourself on day one.
Do I own the code?
Yes, fully. No lock-in, no proprietary runtime, no subscription required to run what we build. You get the repository, the deploy config, and the keys.
What if the job is bigger than one module?
We scope it into fixed stages. Start small, validate the outcome, then expand only if it works. No big upfront commitment required. Each stage is a fixed price and a working deliverable.
Who maintains it after?
You can — it's documented, tested, and written in mainstream TypeScript without exotic frameworks. Or we can, on a retainer. Your choice; you're never stuck with us.
What if I'm not happy?
We offer a money-back guarantee on the first milestone. If the deliverable doesn't meet the agreed spec, you don't pay.

// Exact terms confirmed at project kick-off — placeholder pending legal review.

Bring the napkin sketch.

Get a free 45-minute audit — no sales deck, no commitment.

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