00 Personal profile

Zdeněk Dolák

Product engineer · CEO of Tolaron · shareholder in AtletiLabs Europe

I'm from the south-west of the Czech Republic, from Šumava, and I live in Prague. I started learning to program at twelve. I was working on my first mobile apps while still at university. My first experience of fintech came at GoPay, and after that I worked for a UK fintech startup, where I led the team building its mobile app. Step by step I moved from writing code toward architecture and product ownership. The mobile app often turned out to be the central product of the whole project — and that is exactly the direction I believe in.

01What I do

I build digital products around a mobile app: from MVP to production, and then onward through maintenance and further development. I take responsibility for the whole product surface — architecture decisions, UI/UX, production code, the database, the backend and the infrastructure. The entire tech stack, not just the screens.

In practice that means the decisions are not made in three separate places. What a screen looks like, what the API thinks of it, what it does to a database query and what it costs to run are one question, not four. I hold all of it, so nobody waits for two suppliers to agree on whose fault something is.

That includes everything after release: the release cycle across App Store Connect and Google Play, CI/CD, crash monitoring, store review, and maintenance for the moment the product starts to change. The apps I built, I then kept shipping for years.

02Where I've worked

Eight years in mobile development, most of it in payments and regulated environments.

2026 — todayFounder and CEOTolaronPragueMy own products: a KYB compliance tool, and a mobile executive dashboard over healthcare data.
2026Consultant and AI architectFoncoHo Chi Minh City, remoteA monorepo of four Next.js apps on Supabase Postgres for a French investor's Southeast Asia expansion, plus an AI content pipeline and end-to-end analytics.
2021 — 2026Senior mobile developer and team leadUK fintech startupManchester, hybrid and remoteA card-payments app in React Native for iOS and Android, used by more than three thousand merchants. I owned the mobile platform from architecture to release: state, native modules, testing, CI/CD, App Store Connect and Google Play. I led a team of two to three engineers, with PCI DSS compliance in view throughout.
2020 — 2021Integration specialistGoPayČeské BudějoviceOnboarding and supporting hundreds of Czech and Slovak partners on payment-gateway integrations: API workflows, testing, and troubleshooting.
2018 — 2020Junior developerShield SystemČeské BudějoviceMy first cross-platform applications for iOS and Android, in React Native and TypeScript.
2017 — 2019IT traineeDachserČeské BudějoviceMaintaining internal systems and supporting SQL-based infrastructure.

03How I work

Distance is a problem I know how to handle. My office has been at my own home for years.

04Elsewhere

The same person, on the platforms where this work is visible.

LinkedInMy professional path.
GitHubFor reference, though most of the code sits behind closed doors.
XMostly shitposting, but every so often something with value in it :D
InstagramLife, and a good deal of travelling around the world.

05Building a digital product around a mobile app?

Get in touch and we can talk it through.

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