2 months ago
Hamburg, Germany +2 moreSenior
Responsibilities
- Build and maintain the Kotlin Agent SDK as an internal product and shape its runtime and client-facing contracts.
- Design and ship the agent identity layer and authentication plumbing so agents can act with real user identities.
- Integrate telemetry, error reporting, inference, and anonymization into the SDK by default.
- Create the SDK test kit, architecture tests, and evaluation workflow for running agents against the ML team’s evaluation harness before model changes ship.
- Own Koog version upgrades, format compatibility, and shared limits for tool output and token usage.
- Gather requirements from consuming engineering squads and communicate technical reasoning clearly.
Requirements
- Several years of production backend development experience in Kotlin.
- Experience building an SDK or internal platform consumed by other engineers, including managing published contracts and versioning.
- Experience setting up testing and observability tooling for a codebase.
- Familiarity with AI agent systems, orchestration, and evaluation through professional or personal projects.
- Clear English communication and ability to collaborate across engineering teams.
Benefits
- Remote work across Germany or work from the Berlin office with a flexible hybrid setup.
- Flexible working hours.
- Stock options.
- 30 vacation days plus a day off for your birthday.
- Germany Transport Ticket and Urban Sports Club access.
- Regular company off-sites and team events.
- Access to Blinkist, Audible, and other learning platforms, plus free language courses.
About voize
voize builds a voice-powered AI assistant that lets nurses and caregivers document care at the bedside via smartphone, with integrations to existing care IT systems. It sells its software to care providers and focuses on reducing administrative workload and improving documentation quality; the company is YC-backed, founded in 2020, and headquartered in Berlin. The product is used in 600+ care facilities in German-speaking markets and is built to be GDPR-compliant.