Founding AI Systems Engineer​/Voice AI Engineer

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Our client is building the next generation of AI-powered customer conversations.

Every day, millions of people interact with businesses over the phone but traditional customer service remains slow, frustrating, and inefficient. By combining cutting-edge AI with scalable infrastructure, our client enables enterprises to deploy intelligent voice agents capable of handling millions of conversations while delivering outstanding customer experiences.

Backed by leading investors and trusted by major enterprise customers, they're building one of the defining AI software categories of the coming decade.

• Location: Berlin, Germany (On-site)
• Employment Type: Full-time
• Level: Mid-Senior Level
• Compensation: €85,000–€160,000 + Equity
• Relocation & Visa Support: Available for Candidates Across Europe

We're looking for an exceptional AI Systems Engineer who thrives on ownership, speed, and solving difficult engineering problems.

You’ll design and build the core systems powering millions of AI-driven customer conversations while working alongside a highly technical team that values experimentation, rapid execution, and real business impact over bureaucracy.

This isn't a role where you'll simply implement tickets, you'll own projects from idea to production, influence technical direction, and help shape the future of AI-powered customer interactions.

• Build scalable, reliable backend systems supporting millions of AI conversations
• Own critical infrastructure powering AI agents in production
• Evaluate, benchmark, and improve modern AI and voice models
• Design distributed systems capable of operating at massive scale
• Solve challenging infrastructure, latency, and reliability problems
• Collaborate closely with Product and Engineering to deliver customer impact
• Take projects from idea through production deployment with full ownership
• Continuously improve platform performance, scalability, and AI capabilities

• Strong software engineering fundamentals
• Experience building distributed, production-grade systems
• Excellent problem-solving and systems thinking
• High ownership with a strong bias for action
• Comfortable working in highly ambiguous environments
• Customer and business outcome mindset
• Strong collaboration and communication skills

• Experience with Voice AI, LLMs, or Generative AI
• Type Script and/or Python experience
• High-growth startup experience
• Experience building AI infrastructure or AI-powered products
• Entrepreneurial background, side projects, or hackathon experience

• €85,000–€160,000 salary
• Meaningful equity package
• Relocation and visa sponsorship for Candidates across Europe
• Access to the latest AI tools
• Urban Sports Club membership
• Free dinners for late evenings
• Direct ownership over critical product infrastructure
• High-trust engineering culture with exceptional autonomy

Help build the AI infrastructure powering millions of customer conversations every day...