Hey Telo (YC W25) builds Voice AI for the Home Service industry, helping Germany's 1 million craftsman businesses by automating phone answering and administrative work.
As Founding AI Engineer, you will:
- Collaborate with customers to solve problems and improve their work experience
- Build scalable backend infrastructure to handle thousands of phone calls per day
- Develop intuitive user experiences in an AI-first environment
- Optimize voice agents for reliability, accuracy, and human-like interaction
- Monitor emerging trends in voice AI, LLM agents, and distributed systems
Required Technical Skills:
- Full-stack software engineering experience (React, TypeScript, Python)
- Cloud technologies (Docker, Kubernetes, AWS/GCP/Azure)
- Modern LLM techniques (transformers, agents, RAG, fine-tuning, context engineering)
- Plus: voice agent experience (Vapi, Pipecat, LiveKit)
- Expertise in leveraging AI tools that make you more productive (Claude Code, Cursor, Windsurf, etc.)
Mindset Requirements:
- Love challenging work where others quit
- Full ownership mentality from day one
- Fluent German language skills; customer-focused approach
Benefits:
- Premium gym membership (Urban Sports Club)
- Competitive salary with meaningful equity
- Early-stage impact as founding hire
- Direct founder and customer exposure
Salary: €60K - €110K EUR
Interview Process:
1. 20-minute intro call
2. Technical interview (take-home exercise with presentation and coding challenge; system design)
3. 45-minute in-person chat or lunch meeting
4. Day-long work trial