Senior Backend Engineer (m/f/d)

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Actimi is a medtech company, we build and deploy a digital health platform for realtime and on-demand data from wearables and medical devices. We're scaling our digital healthcare infrastructure, extend it with AI and are looking for a senior backend or fullstack engineer to help us with it.

Tasks

• Design and scale NestJS services that handle real-time device telemetry
• Own reliability under load, multi-tenancy, caching, queues, and PostgreSQL / Redis performance
• Incorporate AI on all levels. Keep the system correct as it grows.

Requirements

• Production experience with TypeScript, Node.js, and NestJS (Express under the hood)
• Solid problem-solving in distributed systems, and the instinct for debugging under load
• Experience building backend services that stay correct and available as they scale

Benefits

• Real ownership of critical backend systems, end to end
• Direct access to the founders and technical leadership
• Meaningful work and systems that support real patient care
• Stuttgart office with flexible/hybrid arrangements
• Competitive compensation and room to grow with the company

Nice to have

• Exposure to FHIR or other healthcare data standards
• IoT / MQTT ingestion
• Load testing (e.g. k6)
• React/React Native experience

How we hire

Our process is two stages:

• A coding assessment (data structures and algorithms), held virtually
• An on-site session working through problems in pseudocode and discussion, whiteboard style, no compiler

We want to see how you reason through problems, not just the final answer.

How to apply

Send us your application along with a link to a profile that shows your work —

• LeetCode
• HackerRank
• Codeforces
• Or similar (a GitHub profile with relevant projects works too).

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