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About the Role
Join a small, fast-moving engineering team building voice AI agents for customer-facing workflows. You will own projects end-to-end across applied AI, real-time audio, and distributed systems, helping turn complex customer needs into reliable production software.
Responsibilities
- Build reliable voice AI systems, including retrieval-augmented generation, dynamic model routing, and evaluation of transcription systems.
- Design and operate a distributed call scheduler that manages concurrency, race conditions, time zones, retries, and provider limits.
- Extend agents across voice, messaging, and email, maintaining shared memory and state across real-time and asynchronous conversations.
- Develop memory and reasoning systems that preserve context through customer workflows.
- Build AI-assisted tools for configuring agents, diagnosing issues, and connecting to business systems such as CRMs, calendars, and email.
- Improve observability and resilience by making failures traceable and ensuring graceful recovery when calls, workers, or providers fail.
Requirements
- Production experience building and owning distributed systems, with a track record of shipping product software and delivering projects end-to-end.
- Strong software fundamentals and experience with Python, FastAPI, or TypeScript in production systems.
- Experience with real-time systems, audio processing, or voice infrastructure, and with production LLM, AI model, or agentic systems.
- Experience with PostgreSQL, Redis, or similar data stores, plus cloud infrastructure on AWS, GCP, or Azure.
- Ability to design or debug systems involving concurrency, load balancing, and fault tolerance.
- Familiarity with tools such as LiveKit, Temporal, message queues, workflow orchestration, React, and observability platforms is valuable.
- Independent, action-oriented approach, sound judgment about code quality and reliability, and a focus on team and customer outcomes.
Skills
- Python
- FastAPI
- TypeScript
- PostgreSQL
- Redis
- AWS
- GCP
- Azure
- LiveKit
- Temporal
- message queues
- workflow orchestration
- React
- observability platforms
Location
- Berlin, Germany
Work Type
- On-site
Salary/Compensations
- €85,000 to €160,000 annually
Benefits
- Equity
- Visa sponsorship
- Relocation support