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Clera

Software Engineer, Voice AI / Backend

Berlin
Salary
€85,000 - €160,000 annually
Level
Mid
Work type
On-site · Berlin
Visa
Sponsors visas

Open. First seen 25 October 2026.

Apply on the company's site →

About the role

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, working across applied AI, real-time audio, and distributed systems to solve practical customer problems.

What You'll Do

  • Build reliable voice AI systems, including retrieval-augmented generation, dynamic model routing, and testing transcription services before production rollout.
  • 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, with shared memory and state for asynchronous and real-time conversations.
  • Develop memory and reasoning systems that preserve context throughout customer workflows.
  • Build AI-assisted tools for configuring agents, debugging issues, and connecting to business systems such as CRMs, calendars, and email.
  • Improve tracing and resilience so failures across calls, workers, and providers can be diagnosed and handled effectively.

What We're Looking For

  • Production experience building and owning distributed product systems, and a track record of shipping projects end to end.
  • Experience with Python, FastAPI, or TypeScript in production, plus PostgreSQL, Redis, or comparable data stores.
  • Background in real-time systems, audio processing, or voice infrastructure, and experience with concurrency, load balancing, or fault tolerance.
  • Experience shipping LLM, AI model, or agentic systems, and working with AWS, GCP, or Azure.
  • Familiarity with workflow orchestration or message queues, observability tools, and full-stack development is useful.
  • Technologies include LiveKit, Bun, Node.js, Fastify, React, Temporal, and OpenTelemetry.
  • Strong software fundamentals, independent problem-solving, and a team-oriented focus on customer and business outcomes.

Compensation & Benefits

€85,000 to €160,000 annually, plus equity. Visa sponsorship is available. Relocation support is available.

Location

On-site in Berlin, Germany.

What this role asks for

Particular to this role

Azure · FastAPI · GCP · Node.js · OpenTelemetry · RAG · Redis

Rare in Clera's other 299 open postings.

Standard for backend roles

AWS · Python

Common in backend postings at any company.

Compared with Clera's other open jobs.

The team: Engineering HIRES STEADILY

This role is one of 464 open in Engineering. 398 were posted in the last 30 days and the oldest in March: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

Python (196 of 464), LLM (195 of 464), TypeScript (183 of 464), React (145 of 464), Machine Learning (119 of 464), PostgreSQL (87 of 464), JavaScript (82 of 464)

OTHER ROLES ON THIS TEAM

From the team and dates on Clera's own job board.

See Software Engineer salaries in Berlin →

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