Clera

Senior Software Engineer, Voice AI / Backend

Clera
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4 days ago
Berlin, GermanySenior

Responsibilities

  • Build reliable voice AI systems, including retrieval, dynamic model routing, and speech transcription testing.
  • Design and operate distributed call scheduling systems for concurrent workloads, time zones, retries, race conditions, and provider limits.
  • Extend agents across voice, messaging, and email while maintaining shared context across real-time and asynchronous interactions.
  • Develop memory and reasoning systems for preserving context across customer workflows.
  • Build tools for agent configuration, debugging, and integration with CRM, calendar, and email systems.
  • Improve tracing and resilience so teams can identify call failures and respond to worker or provider issues.

Requirements

  • At least 2 years of experience building and owning production software, including distributed systems and end-to-end product delivery.
  • Production experience with Python, FastAPI, or TypeScript, plus PostgreSQL, Redis, or similar data stores.
  • Experience with real-time systems, audio processing, or voice infrastructure, and production experience with LLMs, AI models, or agentic systems.
  • Knowledge of distributed systems concepts including race conditions, load balancing, and fault tolerance.
  • Experience with AWS, GCP, or Azure.
  • Familiarity with workflow orchestration or messaging tools such as Temporal and observability tools such as OpenTelemetry or Honeycomb.
  • Full-stack experience with tools such as React is useful.
  • Strong software fundamentals, independent problem-solving, and focus on customer and business outcomes.

Benefits

  • €85,000 to €160,000 annual compensation plus equity.
  • Visa sponsorship is available.
  • On-site work in Berlin, Germany.
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