Job Description

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What to expect

Caspar Health is the digital rehabilitation clinic with the vision of giving every patient access

to the most effective rehabilitation treatment anywhere at any time. We provide individual,

digital therapy combined with personal therapeutic care from healthcare professionals. This

is your opportunity to help shape traditional healthcare concepts in the areas of prevention

and rehabilitation so that people receive the best possible care during and after their clinic

stay, regardless of their location.



We’re looking for a (Senior) Backend Engineer (all identities) to join our team in Berlin.

What makes this team especially compelling is that you’ll be contributing in a regulated

healthcare environment, working with interoperability standards like KIS, HL7, and FHIR and

resolving Clinics Data Integration Problems.

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Your Challenges

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
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Your profile

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)
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Why Caspar Health?

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 they’re doing.

#MakeAnImpact!

Genuine collaboration – no silos, no egos. After all, we’re 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

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We live diversity – it's not a marketing slogan, it's part of our everyday reality. Feedback isn’t a tool – it’s 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 Caspariansregardless 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!

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Your contact

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 talent@caspar-health.com. 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. That’s 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.

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About us

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.