Software studio — Kraków, PL
Web, mobile and AI products that move your numbers — designed, built and cared for by one senior team. Tell us your idea today, get a scoped estimate within 48 hours.
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Businesses run on our code
9+
years building software products
30+
products designed, shipped and cared for
4yrs
average partnership — clients stay
100%
senior engineers on your project
Why Katamai
You talk directly to the people who design and build your product. No account managers, no broken telephone.
Research, design, build, test, run. One accountable team from the first workshop to years after release.
We pick technology for where your business is going — so your product grows without a costly rebuild.
You're in the process at every stage. Documentation, decisions and code you own — no vendor lock-in.
Not sure what you need yet? The estimate call is free either way.
Who we are
What we do
Web & mobile apps engineered to scale. React on the front, solid architecture underneath.
→02Research-driven design that makes complex products feel obvious.
→03We break it before your users can. QA, automation and R&D as standard.
→04Practical AI woven into real products — not demos.
→15 minutes with an engineer beats a week of guessing.
Case studies
01
AI fleet intelligence platform
Live tracking, journeys, dash-cam video, AI detection and a fleet chat assistant — one React 19 hub for camera-equipped fleets.
Live position, video and AI insight for every vehicle in one app — in 12 languages and each customer’s own colours.
Open case study→
02
Real-time fleet telematics
Vehicles live on a HERE map over SignalR, journeys rebuilt from telemetry and ADAS/DSM events — in Vue, then rewritten in React.
A live picture of the whole fleet that updates itself — and a full journey story behind every vehicle when something happens.
Open case study→
03
Content marketing marketplace + Chrome extension
A link-building marketplace with 30+ search filters, AI site suggestions from OpenAI embeddings and a Manifest V3 extension living inside Google.
Advertisers find the right sites in one search — and see Marketin9 offers wherever they already browse.
Open case study→What partners say
They feel like our own team, not a vendor. We plan together, ship together, win together.Product Owner · Fleet telematics platform
Senior people from day one. Decisions in hours, not weeks — and code we're not afraid to own.CTO · MarTech platform
We've trusted them with our core product for years. That says everything.Founder · Logistics SaaS
Scoped estimate in 48 hours. Free, no obligation, no salespeople.
Industries we know deeply
Stack we bet on
Technology chosen for where your business is going — not for our comfort. If a simpler stack ships faster and scales further, that's the one we pick.
From hello to kickoff
Step 01
A few lines in the form below — or a 15-minute call. That's all we need to start.
Step 02
Scope, price and timeline — from an engineer who'd actually build it. Free, no obligation.
Step 03
A senior team on your product — research, design and code from day one.
Free estimate
Answer six quick questions — 60 seconds, no fluff. The more you tell us, the sharper the estimate.
Hi, we're Katamai. Six quick questions and your brief lands with an engineer — estimate back within 48 hours.
Before you ask
Every product is scoped individually — that's exactly why the 48-hour estimate exists. Send a few lines above and you'll get a real number, not a "it depends".
Estimate in 48 hours. If we're a match, a senior team is on your product within weeks — not months of recruitment.
You do. Full repository access from day one, documentation included. The knowledge stays with you — no vendor lock-in, ever.
A direct line to the engineers building your product, demos every sprint, and a transparent backlog. You're in the process at every stage.
Still unsure? It costs nothing to ask.
Career
No open roles right now · Kraków · Remote