Founding Voice Agent Engineer
EUR 70k-110k / year + Equity
Posted on Jul 2, 2026
Founding Voice Agent Engineer
At Hey Telo, we're building AI agents for the real world.
German tradespeople - the "Handwerker" - are stuck on calls and paperwork instead of focusing on their craft. Our voice AI answers their phones, schedules jobs, and handles customer communication, giving them hours back every day.
We're YC-backed, based in Munich, and at the stage where the next hires shape the company itself.
As Founding Voice Engineer, you'll ship our voice agents, build the infra, and sit with the customers using them - the full loop, with no layers between you and the work that matters.
Quick facts:
Full-Time | Start ASAP
In-person in Munich
Compensation: 70k€ - 110k€ (salary + equity)
What you will be working on
Voice agents. Push our agents toward natural, reliable, trustworthy conversations in German. Cut hallucinations, handle edge cases, get latency under control, and make talking to Hey Telo indistinguishable from talking to a real person.
Backend infra. Build the systems that handle thousands of calls per day without dropping any.
Customers. Sit with Handwerker. Hear their actual problems. Ship things that solve them. The best decisions we make come out of these conversations, not papers.
You might be a fit if you:
Are a strong builder
Have deep expertise in modern LLM techniques (transformers, agents, RAG, fine-tuning, context engineering) and STT/TTS models
Have experience in software engineering (Python)
Have deployed voice agents using LiveKit, Vapi, Pipecat or similar to production
AI tooling (Claude Code, Cursor, etc.) is part of how you work
Want full ownership from day one - you build the structure, not wait for it
Speak fluent German (at least C1) and actually want to sit with Handwerker, hear their problems, and let that shape what you build
You might not be a fit if you:
Have no prior experience in software engineering teams
Want a remote-first, async culture - this is in-person Munich. A lot of the value comes from being in the room with customers and the team.
Are looking for a cushy, slow-moving 9-5 role.
Why join now?
YC-backed, live in market, 200+ Handwerker using us every day, 40% growth MoM
One of our first engineering hires - direct line to the founders, customers, and every product decision
The German Handwerker market is enormous and underserved. Voice AI is hard enough that few will do it well. We intend to be the ones who do it best.
Perks
Urban Sports Club membership - join our weekly team workouts
Huel stocked daily (our fuel)
Our hiring process
Intro call (30 min)
Technical Interview - Take-Home Exercise, including a code walkthrough
Lunch with the team
Apply here and join Hey Telo
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