AI Engineer

About Prepia

Prepia is one of the fastest-growing EdTech startups in the region. Our goal is to become the go-to platform for exam preparation. We recently raised investment from top European fund Inovo and Silicon Gardens Capital, who supported creators of Talking Tom and Photomath. That means you’re not joining an idea, but a funded product with real momentum. We’re aiming high, literally. Our office overlooks the entire city of Belgrade.

The Role

Develop advanced AI features within the app, such as chatbot integration to help users understand their mistakes. Build systems for automatic content generation using large language models. Drive the long-term development of a personalized AI tutor that tracks learning behavior and offers tailored study recommendations. This role requires a high degree of independence, problem-solving ability, and initiative.

Must-Have Experience

● Real experience building prod LLM systems (RAG, voice agents, evals) You ship fast - days to something meaningful, not weeks
● You stay up to date with latest AI developments and explore how they could improve our product
● Proactive - see problem, fix it
● Fluent in TypeScript
● 2+ years with LLMs, portfolio of real projects.

Bonus: you've trained or fine-tuned models, built things from scratch.

What You Get

● You get: fastest growing Serbia AI startup, real impact at scale
● Competitive salary + performance-based bonuses.
● Equity potential for key players. We want people who build core products to win with us long-term.
● Hybrid work model: work from our Belgrade office Monday–Thursday, remote on Fridays.
● FitPass.
● Unlimited drinks, coffee, tea, etc.
● Unlimited sweets/snacks in the office.
● Team offsites and a genuinely friendly culture.
● Conferences, courses, and advancement opportunities.
● Fast-moving environment focused on real impact.

A Bit of Our Culture

We care about output. We measure what we ship and how it performs for users. If you like moving fast, having ownership, and seeing your work live in production constantly, you’ll fit in here.

Note: Only shortlisted candidates will be contacted.