Senior Backend Engineer Integrations Squad (all identities)

• Design develop and maintain backend services and APIs using Ruby on Rails and TypeScript

• Build and optimize data integration pipelines with external healthcare systems (e.g. Clinics Hospitals Laboratories)

• Implement and maintain KIS (Krankenhausinformationssystem) and HL7-based integrations as well as other relevant interoperability standards

• Ensure secure and reliable data exchange across systems adhering to German and EU healthcare data protection regulations (e.g. DSGVO/GDPR)

• Collaborate with cross-functional teams (Frontend Product DevOps and Clinical Partners) to define and deliver technical solutions

• Write clean maintainable and well-tested code ensuring scalability testability and maintainability across all deliverables

• Monitor troubleshoot and optimize system performance and infrastructure on AWS

• Contribute to architectural discussions and continuous improvements in development processes and technology choices

• 5 years building and operating production systems with Ruby on Rails and TypeScript with a strong focus on scalable maintainable high-quality code

• Deep expertise in SQL and PostgreSQL including designing robust data models and performance-conscious queries

• Hands-on experience with healthcare interoperability and regulated environments: KIS HL7 FHIR and secure data exchange between heterogeneous systems (ideally within German healthcare)

• Proven ability to design and integrate secure APIs and integrations (RESTful asynchronous/event-driven) applying data security best practices throughout

• Strong track record owning AWS infrastructure deployment pipelines and modern delivery practices including CI/CD and Infrastructure as Code (e.g. Terraform)

• Proactive collaborative communicator with a hands-on continuous-learning mindset including experimenting with AI-driven approaches; English (C1) and German (C1) (written and spoken)

• Remote-first with flexible working hours office optional in Berlin-Mitte or up to 90 days a year outside of Germany

• To match this we support you with a monthly home office allowance and an additional meal subsidy

• Plenty of time to recharge with 30 vacation days per year

• Budget for learning & development conferences and coaching tailored to your potential and growth opportunities

• High level of ownership and decision-making freedom no micromanagement. We hire experts who know what theyre doing. #MakeAnImpact!

• Genuine collaboration no silos no egos. After all were all working toward the same vision. #ValueFocus!

• Access to all Caspar offerings for mental and physical well-being #HealthyTogether!

• And yes all the snacks your heart desires group sports sessions a never-empty drinks fridge and a healthy dose of humor are included too

What defines us as a team

• We live diversity its not a marketing slogan its part of our everyday reality.

• Feedback isnt a tool its part of our culture.

• We believe that technology only makes sense when it truly helps people.

• Our drive is purpose but our standard is professionalism.

Diversity and Inclusion:

At Caspar Health we strive to provide a friendly safe and welcoming environment for all Casparians* regardless of ethnic origin gender gender identity and expression sexual orientation limitations of any kind physical appearance social background age or religion (or lack thereof).

When you apply we purely focus on your experience and motivation. You decide what additional information you want to disclose (picture marital status religion gender nationality etc). We value and treat all applications equally.

We are looking forward to getting to know you!

Elisabeth Hegele; Talent Acquisition Specialist

Please submit your application online. We are also interested in knowing your earliest possible start date and your salary expectations. If you have further questions please reach out to We will get in touch with you as soon as we can.

Our product Caspar Health is used in medical facilities and by patients doctors and therapists. Working with (sensitive) personal data (e.g. health data) is part of our daily routine. Thats why we expect a strong commitment from our employees to protect personal data and to safeguard the rights of those affected as best as possible.

Data privacy notice:

Please apply exclusively via our application link as this is the only way we can ensure the protection of your data. You can find our privacy policy here.

Caspar Health is a digital rehabilitation clinic with a vision to provide patients with access to the most effective rehabilitation treatment at any time any place.

Medical facilities use Caspar Health to conduct therapy measures online with their patients during their hospital stay and after discharge. The combination of learning technology with in-depth medical knowledge ensures that the therapy goal is achieved in a sustainable manner.

The services are covered by numerous pension insurance companies in the areas of rehabilitation prevention and aftercare.