ABOUT THE ROLE

Join us in building a next-generation medical imaging and annotation platform using React, Python, and AI-driven healthcare workflows. As our Full-Stack Developer, you will help shape the transition of our medical annotation tooling from an integrated system into a standalone platform used across multiple products.
Working across the stack, you will build and evolve a scalable web-based annotation system for medical imaging workflows - including a browser-based 3D viewer built with Cornerstone.js and Python backend services for handling volumetric MRI data and annotations.
The role combines frontend development, medical imaging workflows, and backend infrastructure, with a strong focus on scalability, usability, and performance for clinical experts and downstream ML applications.

YOUR RESPONSIBILITIES

Lead the development of a new web-based annotation platform, built largely from scratch while adopting key functionality from the existing ecosystem.
Maintain and extend our existing web-based annotation application, including integration of the Cornerstone.js-based medical viewer developed by our Software team.
Design and implement a Python-based backend for annotation loading, saving, and state management of volumetric 3D imaging data.
Work with 3D medical images (MRI) and segmentations, ensuring accurate and high-performance rendering in the browser.
Build advanced annotation and editing tools, such as 3D region growing and brush-based workflows, and optimize platform performance across different hardware setups.
Collaborate closely with Software, ML, and clinical teams, acting as the technical bridge between engineers, radiologists, and downstream AI workflows.
Contribute to architectural decisions, scalability improvements, testing, and developer experience across the platform.

YOUR BACKGROUND

Must-have

3+ years of professional experience in Full-Stack development, ideally in a startup, SaaS, healthcare, or MedTech environment.
Strong frontend experience with React or similar frameworks, JavaScript (ES6+), TypeScript, HTML, and CSS.
Experience with modern UI frameworks and component systems such as Tailwind, shadcn/ui, or similar approaches for high-density interfaces.
Solid backend experience with Python and frameworks such as FastAPI, Flask, Django, or Litestar. Experience with alternative backend stacks (Node.js, C#, Go, Java) is also welcome.
Experience building scalable web applications and APIs with a focus on clean architecture, maintainability, and performance.
Familiarity with Docker, GitLab CI/CD, testing, and modern DevOps workflows.
Strong problem-solving mindset and experience working in interdisciplinary teams across Software, Data, ML, and clinical domains.

Nice to have

Experience with medical imaging libraries such as Cornerstone.js, VTK.js, or ITK.js.
Familiarity with medical imaging standards and formats such as DICOM or NIfTI.
Hands-on experience with AWS or similar cloud platforms.
Experience with PostgreSQL or other relational databases.
Understanding of radiology workflows or experience building tools for clinical specialists.
Interest in AI-driven healthcare products and medical imaging technologies.

WHAT YOU CAN EXPECT

Focus on what matters: At our company, competence, personality, and commitment are more important than formalities or the study program you chose.
Your Impact: Your work helps make disease diagnosis faster, more precise, and more manageable.
Your Team: Join a highly motivated, interdisciplinary team with fast decision-making processes and a collaborative atmosphere.
Freedom to choose: Work remotely or from our office in Berlin-Kreuzberg - whatever suits you best.
Benefits: Use your personal benefits budget flexibly and choose the perks that suit you best!

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mediaire GmbH