Senior Fullstack Engineer (all identities) in Berlin

Senior Fullstack Engineer (all identities)

Caspar Health builds digital rehabilitation products that enable patients to continue their therapy beyond the clinic and help therapists support them more efficiently.

As a Senior Fullstack Engineer in our Healthcare Professionals Squad, you will build and improve the interface therapists use to manage their daily work. Working across our Ruby on Rails backend and React and TypeScript frontend, you will shape solutions with Product and Design and take them from an initial problem through to production.

You will join a cross-functional team of four engineers and a UX/UI Designer. Together, you will improve how healthcare professionals communicate with patients and deliver therapy—while shaping the architecture, reliability and maintainability of the underlying software.

We appreciate your expertise and wish to provide full transparency regarding the compensation range for this role. Your starting salary will be aligned with your qualifications, relevant experience, skill set, and market benchmarks. Remuneration for this position follows our internal salary bands and ranges from €76,000 to €82,000 gross annually (based on a full-time 40-hour work week).

In this role, you will:

Learn the workflows supported by our therapist interface, become familiar with our architecture and ship your first improvements during your first three months

Take ownership of larger full-stack features—from shaping requirements with Product and Design to implementation, testing, release and iteration

Build and improve features across our Ruby on Rails backend and React and TypeScript frontend

Make technical implementation decisions about code structure, testing approaches and incremental refactoring

Decide how to break down and deliver work within agreed priorities and engineering standards

Lead technical recommendations for changes affecting shared architecture, other teams or delivery commitments

Improve the therapist experience as well as the reliability and maintainability of the underlying software

Several years of experience building and operating web applications in production

Strong experience with Ruby on Rails and experience with React and modern TypeScript

Strong understanding of relational databases (PostgreSQL), APIs, and testing

The ability to navigate ambiguous requirements, make sound technical trade-offs and turn problems into maintainable solutions

A product mindset: you seek to understand the intended outcome rather than treating implementation as an isolated task

The judgement and independence to take work from an initial problem through to a production result

Professional working proficiency in English

You do not need to meet every requirement perfectly. If the role interests you and you believe your experience could help us improve the platform, we encourage you to apply.

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

Our product CASPAR Health is used in the environment of medical institutions, patients, doctors and therapists. Working with (sensitive) personal data (e.g. health data) is part of our daily work. Therefore, we require a high level of commitment to the protection of personal data from our employees in order to protect the rights of the data subjects as best as possible.

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!

Evidence from the posting

Fully remote “Remote-first”