AI Engineer | Multiple openings at the most exciting AI-native startups in Europe & LatAm

At TechTree, we match exceptional talent with the startups building the next wave of intelligent software and more. And right now, our pipeline is full.

One application. We match you to the role that fits your background, language skills, and ambitions.

Some of the most consequential AI engineering work happening right now is invisible to most people. Here's what we're seeing our partners building on the ground.

One is a healthtech company built by doctors for doctors — backed by leading MedTech investors and founded by practising physicians. Their AI platform transcribes clinical consultations in real time and integrates directly into hospital workflows across Brazil and Colombia, serving millions of users.

Another is a stealth European defence startup based between Paris and Warsaw — backed by Project A (Europe's leading defence VC) and angels including the founders of Cloudflare, Quantum Systems, and ElevenLabs. Recognised as one of France's top 20 seed companies.

What AI engineering roles pay in our network right now:

→ AI Engineer – Healthtech (Remote) — $100k–$180k + equity

→ Founding AI Engineer (Warsaw, Remote) — PLN 240k–480k + equity

→ Full-Stack AI Engineer (London, on-site) — £100k–£175k + equity

→ Applied ML Lead (Remote) — $100k–$150k + equity

→ Senior ML/AI Engineer (Poland, Remote) — PLN 288k–317k + equity

What These Roles Have In Common

→ Python

• FastAPI
• LangChain / LangGraph
• RAG
• vector stores

→ Real production scale — millions of users, not research prototypes

→ High ownership, direct founder access, meaningful equity

📍 Warsaw | Remote | London | San Francisco

What is TechTree?

TechTree combines AI agents with a human support team to give candidates a better, more transparent hiring experience.

Our AI Agent gets to know your background, experience, and what you're optimising for. It continuously matches you to live roles across our network where there's genuine alignment, not just keyword overlap.

Our Human Team is there to support you through the process:

• Answer questions about roles, process, and next steps
• Add context when something in your background isn't obvious
• Help unblock stalled processes or unclear feedback
• Make sure you're not left guessing, ghosted, or wasting time

We only post real jobs. Every role on TechTree is a live, active hire.

If you apply: you'll be considered for this role, you may also be matched to other relevant roles, and if there's no fit, we won't spam you.