Marko T User
@markotuser
Agentic AI engineer building multi-agent systems that verify production-ready software on real devices.
CroatiaWhat I'm looking for
I architected an autonomous multi-agent platform that turns intent into verified, production-ready software, with human judgment where it matters. Its agents work in parallel, and a continuous feedback loop turns outcomes into lasting capability.
At Elixirr Digital, I built React Native and Expo apps for clients and brought AI into products through LLM features and agent-driven workflows. Previously, at luca, I built a hospitality platform’s iPad and companion mobile apps, owned release engineering, and introduced automated end-to-end testing.
Experience
Work history, roles, and key accomplishments
Senior React Native Developer (AI focus)
Elixirr Digital
Jan 2025 - Aug 2026 (1 year 7 months)
Built React Native / Expo apps for clients, from architecture to release. Brought AI into the products with LLM features and agent-driven workflows.
Senior React Native Developer (Contractor)
luca
Oct 2021 - Jan 2025 (3 years 3 months)
Built the React Native / Expo iPad app and companion mobile apps of a hospitality platform. Owned release engineering, CI/CD and App Store / Play Store delivery. Introduced automated end-to-end testing that caught bugs before production.
Full Stack Developer (Contractor)
Styliff
Sep 2020 - Oct 2021 (1 year 1 month)
Built a fitness app end to end: React web, React Native mobile and the backend. Owned CI/CD and store releases.
Full Stack Developer
reev
Jun 2020 - Sep 2020 (3 months)
Developed web and mobile features for an in-house product using React, React Native, and Kotlin/Spring.
React Developer
DECODE
Jul 2019 - Jun 2020 (11 months)
Developed React and React Native apps in a corporate Agile/Scrum team.
Full Stack Developer
Aktivis
Jan 2017 - Jul 2019 (2 years 6 months)
Developed full-stack web and mobile apps using React, React Native, and Java/Spring.
Education
Degrees, certifications, and relevant coursework
Zagreb University of Applied Sciences
2015 - 2018
Attended Zagreb University of Applied Sciences from 2015 to 2018.
Tech stack
Software and tools used professionally
Availability
Location
CroatiaAuthorized to work in
Salary expectations
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