Senior Full-Stack Developer (f/m/x)

Data4Life; Berlin; Hybrid; EUR 75.000 - 110.000; Vollzeit

Benefits dieser Stelle

Private supplementary health insurance

Public transport ticket

30 days vacation

Flexible working models

Zusammenfassung

Data4Life is seeking a Senior Full-Stack Engineer to join a secure, health-focused development effort. Work on a medical image annotation app developed with Mount Sinai Health System in New York, supporting clinical researchers at scale.

You will design and ship frontend and backend features, participate in architecture decisions, and collaborate across an integrated team including designers, QA, and product management. English required; German a plus, with hybrid/remote flexibility.

Qualifikationen

• M.Sc. in Computer Science, Software Engineering, or a related field.
• 3+ years of professional full-stack development experience.
• Strong frontend skills: HTML, CSS, JavaScript/TypeScript, React.
• Strong backend: Go, Kubernetes, Docker.
• Experience with relational databases (PostgreSQL).
• Professional English; German language skills a plus.

Aufgaben

• Design, build, and ship high-quality frontend and backend features with accessible, performant, and well-tested code.
• Contribute to software design and architecture decisions and participate in code reviews across the full stack.
• Collaborate with designers, QA, and product management to deliver user-centered software.
• Engage with customers and users through feedback sessions and user research to understand problems.
• Design with security at the core—definition of authorization and data protection architecture, with proper documentation.

Kenntnisse

HTML/CSS/JS/TS

React

Go

Kubernetes

Docker

PostgreSQL

English

German (plus)

Ausbildung

M.Sc. in CS or Software Engineering

Tools

Docker

Kubernetes

PostgreSQL

Jobbeschreibung

At Data4Life, we develop secure, standards-compliant digital health solutions that empower researchers and public health institutions to advance evidence-based medicine. As a nonprofit supported by the Hasso Plattner Foundation, we build scalable research infrastructures — supporting international standards such as FHIR and OMOP — and collaborate with some of the world's leading clinical institutions.

As a Senior Full-Stack Engineer, you will work on a medical image annotation application built in collaboration with Mount Sinai Health System in New York, one of the largest and most respected academic medical centers in the United States. Your code will support clinical researchers working with real patient data at scale.

Your future role

• Design, build, and ship high-quality frontend and backend features — writing accessible, performant, maintainable, and well-tested code.
• Contribute to software design and architecture decisions, and take part in code reviews across the full stack.
• Work closely with designers, QA, and product management as part of an integrated team to deliver well-crafted, user-centered software.
• Engage directly with customers and users — joining feedback sessions and user research to build a deep, end-to-end understanding of the product and the problems it solves.
• Design with security at the core — shaping authorization concepts and data protection architecture from the ground up, including the documentation that supports review and sign-off by our clinical partners.

What you need to succeed

• A university degree (M.Sc.) in Computer Science, Software Engineering, or a related discipline.
• 3+ years of professional experience as a software engineer or full-stack developer, or equivalent experience.
• Strong frontend skills: deep fluency in HTML, CSS, and JavaScript/TypeScript, with hands-on experience in React or equivalent.
• Solid backend experience: proficiency in Go (Golang), Kubernetes, and Docker, or equivalent.
• Experience with relational databases; we use PostgreSQL.
• Professional written and spoken English, German language skills a plus.

Why you will love working with us

• High level of personal responsibility and creative freedom
• Work on socially impactful projects in the healthcare sector
• Collaboration with leading partners from research, technology, and healthcare
• A diverse, interdisciplinary, and international team working across three locations (Potsdam, Berlin, and Singapore)
• Flexible working models with the option to work from home
• Permanent employment contract with 30 days of vacation
• Attractive employee benefits, e.g. private supplementary health insurance, public transport ticket

Good to know

We particularly welcome applications from members of the LGBTQI+ community, individuals with a migration background, people of color, and people with disabilities or chronic illnesses. If you require any accommodations or specific assistance during the application or interview process due to a disability, please let us know. We will do our best to support you.