Caspar Health connects digital rehabilitation with personal therapeutic care. We help people receive care during and after their clinic stay, wherever they are.

We are looking for a Senior Software Engineer to join our Integration Squad.

You will develop, roll out, operate and maintain healthcare integrations across Health Level Seven version 2 (HL7 v2), REST application programming interfaces (APIs), Fast Healthcare Interoperability Resources (FHIR) and CSV imports.

You will strengthen our backend engineering capacity and help clinic IT teams and software partners connect reliably to Caspar Health.

The role covers both existing interfaces and new integrations, from implementation and partner onboarding through production support and ongoing improvement.

Hands-on experience implementing and operating FHIR integrations in production is a required qualification.

We would like to hear about the production FHIR integrations you have delivered, the systems you connected, the decisions you owned and how you kept the integrations reliable after launch.

This role is located in Germany and requires full physical presence within the country .

Due to our existing payroll and social security framework, permanent remote employment from abroad is not supported.

Candidates must be eligible to work in Germany and resident from their first day.

Please be advised that we cannot offer visa sponsorship or relocation assistance at this time.

Deine Herausforderungen

Develop, roll out, operate and maintain integrations across our interface landscape

Take integrations through requirements clarification, data mapping, implementation, partner testing, go-live and ongoing support

Maintain and improve existing interfaces, resolve production issues and support changes in clinic and partner systems

Build reliable data flows for patient information and therapy schedules

Design and maintain backend services and versioned APIs in our Ruby on Rails and TypeScript environment

Handle duplicate messages, delayed or out-of-order updates, cancellations and partial failures with clear retry and reconciliation behaviour

Extend our developer portal with runnable quickstarts, accurate API references, synthetic examples and troubleshooting guidance

Work with clinic IT teams and software partners on tested interface contracts and repeatable onboarding

Improve automated contract and end-to-end tests, monitoring and operational runbooks

Share maintenance, support and knowledge through pairing, design discussions and code reviews

Apply secure authentication, authorisation, tenant isolation and data-handling practices with our infrastructure and privacy specialists

Dein Profil

Substantial hands-on experience delivering FHIR integrations used in production, including personal responsibility for implementation and troubleshooting after launch

Practical knowledge of FHIR resources, profiles, implementation guides, identifiers, terminology bindings, extensions and validation

Hands-on production experience with Ruby on Rails, including maintaining and troubleshooting backend APIs and asynchronous integrations.

You have practical experience working with AWS infrastructure, including the ability to integrate and manage cloud-based services

Experience with healthcare data models, patient and encounter lifecycles, identity matching and appointment changes

Strong SQL and PostgreSQL skills, including data modelling, migrations and performance-conscious queries

Experience designing secure REST APIs and asynchronous or event-driven integrations

Clear documentation and communication with engineers, product colleagues and integration partners

A collaborative, pragmatic approach and strong written and spoken English

Warum 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

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

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Aperçu du poste

Publiée le

20 octobre 2026

Lieu

Berlin

Type de contrat

Temps plein

Mode de travail

100 % télétravail

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Entreprise

Caspar Health

Berlin

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