Fintech engineering · Products · Consulting

I build systems that move money.

I'm Marko Marinovic, a fintech engineering leader. I'm a staff engineer and team lead at Lisk, building money operations software for finance teams.

Through Blank, the studio I co-founded and run engineering for, I build my own products and consult for companies building payments and AI systems.

I started in crypto: DeFi, token launches and launchpads, stablecoins, key generation and transaction signing. Most of what I build now is hybrid or fully fiat - accounts, payments, ledgers, approvals. The constraints changed more than the problems did.

The AI work and the money work are the same job. I spent years building AI systems that act on their own, and now I work on software that moves money. They fail the same way: acting on information nobody checked.

Selected work

  • Lisk · Money operations software for finance teams
  • Blank · AI and full-stack product studio
  • Totebot · AI assistants that sell and support inside online stores
  • dobartek.hr · Croatia's largest food-delivery platform
  • tailwindsql · SQL queries written as Tailwind classes · 1.3k★
  • React2AWS · AWS infrastructure written like React components · 443★

The road here

Lisk2025 - present

Staff engineer and team lead. Money operations software for finance teams.

Blank2019 - present

Co-founder & CTO. I consult on payments and AI products, and build our own.

Digital Assets2018 - 2019

Smart contracts, multi-sig and DeFi across EVM chains.

dobartek.hr2016 - present

Co-founded Croatia's largest food-delivery platform. Still running.

Recent writing

What I no longer care about when reviewing code, How to Actually Read an AI-Sized Diff, How I Optimized an AI System to Cut Its Bill by 80%. Or browse all essays, or say hello.

Elsewhere: GitHub, LinkedIn, and X.