I build the product and lead the team behind it., Product and operations leader who ships the code too., Technical founder. I lead, I build, I ship.

Built the data and AI systems behind a global operation at Duolingo. Two SaaS products, shipped solo.

US Citizen · EU Long-Term Resident (Croatia). Authorized to work in the US and EU, no sponsorship required. Remote (CET, overlaps US East Coast mornings), open to relocating to Charlotte, NC.

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Product2026 – Present

Sitnice Bitnice

A full-stack bilingual (Croatian / English) recipe and editorial platform, built solo end-to-end: a legacy WordPress site rebuilt on Payload CMS 3 + Next.js 15, with an automated WordPress-to-headless migration pipeline, anonymous IP-hashed ratings, three-tier RBAC, and a multi-layer caching strategy on Vercel and Supabase.

Next.js 15
React 19
Payload CMS 3
TypeScript
PostgreSQL
Supabase
Drizzle ORM
Tailwind CSS
shadcn/ui
next-intl
Lexical
Resend
Vercel
pnpm

Product2026 – Present

Petica.app

A Croatian K-12 education platform, built solo end to end: a Next.js 16 + React 19 + Supabase + Payload CMS app powering AI grade summaries, exam prep, and auto-graded quizzes, built on a resilient authenticated integration client for the national e-Dnevnik gradebook, a provider-agnostic Gemini/Claude/OpenAI layer, AES-256-GCM credential vaulting, and an RLS-first multi-tenant model (170 policies across ~42 tables).

Next.js
React 19
TypeScript
Gemini
OpenAI
Claude
Supabase
Payload CMS
Tailwind CSS v4
Stripe
Vercel
pgvector

Professional2022 – 2026

Testing Operations Analytics Platform

The data and AI backbone of a global remote testing operation, built solo: ~195 scripts and 87K lines of code powering financial reporting, hours accounting, quality metrics, and automated per-person reporting.

Python
SQL
BigQuery
pandas
scikit-learn
Gemini
OpenAI
GCP
AWS
GitHub Actions
Docker