(Senior) Full Stack Engineer (m/f/x) - Based in Germany

Cara Care, a digital health company backed by Bayer AG, is on a mission to improve people’s digestive health through technology. As we expand our product portfolio and modernize our platform, we’re looking for a versatile, pragmatic, and forward-thinking (Senior) Full-Stack Engineer (m/f/x) to help shape the future of digital therapeutics.

Your Role

You’ll join a cross-functional product team with high ownership, lean processes, and a clear focus: deliver real impact to patients. We’re looking for someone who thrives on solving real-world problems with code, is technology-open, and knows when to build fast and when to build right. Your main focus will be building and improving our backend services, while also contributing to our React Native apps. You’ll also help us use AI tools and coding agents thoughtfully in day-to-day engineering, turning emerging capabilities into reliable workflows that improve how we design, build, test, and operate patient-facing products.

Your Responsibilities

• Design, build, and operate reliable backend services and APIs, primarily using Python, Django, and PostgreSQL, and contribute targeted changes to our React Native applications with TypeScript.
• Use AI coding agents to implement features, refactor code, and generate tests. Define clear tasks and constraints, provide relevant context, Provide clear context and constraints, and validate changes through code review, automated tests, and application-level checks.
• Take an end-to-end view of features: understand how mobile clients, APIs, data models, and infrastructure interact, and make pragmatic technical decisions across these boundaries.
• Own backend delivery from architecture and implementation to automated testing, deployment, monitoring, and iteration, and continuously improve our CI/CD pipelines.
• Improve the performance and reliability of our backend services, APIs, and databases.
• Connect AI-assisted development to engineering and design tools via MCP, for example to automate repetitive coding tasks or check frontend changes against Figma designs. Keep patient data, credentials, and other sensitive information out of unapproved tools and workflows.
• Collaborate closely with Product, Design, and Medical to explore, define, and deliver patient-centric features across our platform, supporting regulated digital health products for IBS, GERD, and upcoming indications.
• Uphold technical excellence in architecture, code quality, and security, including applicable requirements under IEC 62304, BSI TR-03161, and the MDR.
• Mentor other developers and help raise the technical bar across the team.

Requirements

Your Profile

Must haves

• 5+ years of professional software engineering experience, with a strong backend focus and an understanding of how complete applications work from user interface to infrastructure.
• Strong backend development skills in an established language such as Python, TypeScript, Java, or PHP. Our current stack includes Python, Django, and PostgreSQL.
• Working knowledge of React Native and TypeScript, with the ability to implement and test changes in an existing mobile application.
• Solid understanding of relational databases, API design, distributed systems and services.
• Experience writing and maintaining automated tests for backend services and APIs, including unit and integration tests.
• Solid understanding of backend security and privacy, including authentication, authorization, secrets management, and secure handling of personal and patient data.
• Strong practical knowledge of containers, Kubernetes, and cloud-native architecture, with experience using GCP or another major cloud provider such as AWS or Azure.
• Hands-on experience using AI coding agents to implement features, refactor code, and write automated tests, including connecting agents to engineering tools via MCP. You can explain how you scoped the work, verified the results, and handled tool permissions and sensitive data.
• A pragmatic product mindset: you collaborate effectively with non-technical stakeholders, understand the impact of technical decisions on patients and UX, and continuously improve both product and platform.

Nice-to-have

• Strong Linux administration skills, including setting up, operating, and securing self-managed cloud instances; familiarity with monitoring and observability concepts.
• Experience with Prometheus, Loki, and Grafana; GitOps using ArgoCD or FluxCD; or configuration management using Ansible or similar tools.
• Networking knowledge and experience with mobile CI/CD, release automation, or application monitoring tools such as Sentry.
• Experience in regulated industries, healthcare, or other security-conscious environments.

Please note: Cara Care is a remote-first company with a fully distributed team. All team members are based in Germany so candidates must reside in Germany to join us.

Benefits

Fair compensation: We offer fair pay, regular salary reviews, and the equipment you need to do your best work.

Great team spirit: Join a vibrant, interdisciplinary team and enjoy a friendly, supportive working atmosphere, with regular in-person team events.

Remote-first working: Prefer working from home? No problem. Want to join us at our Berlin office? That works too. Our remote-first approach gives you the flexibility to work where it suits you best.

30 days off per year: Rest matters. You’ll get 26 vacation days plus 4 additional company-wide mental health days each year to take a breather and recharge.

Flexible working hours: Whether you’re an early bird or prefer a later start, you can shape your working day around what works for you.

Urban Sports Club (USC): Enjoy access to a wide range of sports, fitness, and wellness activities at discounted rates.

OpenUp: Access a variety of resources and services to support your mental health and personal wellbeing.

Corporate Benefits: Get attractive discounts and exclusive offers from a wide range of well-known brands and providers.

Make a real impact: Be involved, contribute your ideas, and help shape what comes next. Your voice matters, and you can make a real difference.

About Cara Care

Cara Care is a digital health company on a mission to improve the lives of people with digestive health conditions through holistic, science-based digital therapies.

Our established IBS therapy, Cara Care für Reizdarm, provides personalised content, practical exercises, and symptom tracking to help people better understand and manage their condition. It is listed in the German Federal Institute for Drugs and Medical Devices’ (BfArM) directory of digital health applications (DiGA) and is covered by statutory health insurance in Germany.

We are expanding our product portfolio and evolving our technology platform to bring digital therapies to more people across a broader range of conditions.

Backed by Bayer

We’re proud to share that Cara Care has recently joined the Bayer Group, a move that strengthens our mission and enables us to scale our impact even further. With Bayer’s global healthcare expertise and our innovative digital approach, we’re poised to redefine care for digestive health.

What It’s Like to Work With Us

At Cara Care, you’ll be part of an interdisciplinary team of doctors, designers, engineers, and creatives who are deeply passionate about improving lives. We’re inspired by our patients and driven by real-world impact. We move fast, collaborate closely, and never lose sight of the importance of well-being—both for our users and ourselves.

Diversity Matters to Us

We believe that diverse teams build better products. That’s why we’re committed to creating an inclusive environment for everyone—regardless of race, religion, color, national origin, sex, sexual orientation, gender identity, age, or disability.

We know that applying for a new job is a big step, and we genuinely appreciate your time and effort. We’re excited to get to know you!