Senior Backend Developer Python (m/f/d)

Mindpeak

COMPANY OVERVIEW Mindpeak is a Hamburg-based AI company dedicated to democratizing cancer diagnostics. Our software supports pathologists in detecting cancer faster and more accurately by applying state-of-the-art deep learning to medical images. Our AI solution is the first to be implemented in clinical histopathology for primary diagnostics in the USA and is used in routine workflows around the world. We tackle a central challenge in modern healthcare: a growing demand for medical image analysis with a static number of cancer experts. By providing powerful, robust tools for visual diagnosis, we help pathologists focus on what only humans can do best—while our technology takes care of the rest. POSITION SUMMARY Role: AI driven (Senior) Backend Developer Python Focus: Building and scaling high-quality backend services that power AI models and digital pathology tools. Establishing AI-agentic development workflows. Team: You’ll be part of the development team, working closely with machine learning, product, and front-end colleagues. You will report directly to our VP Engineering. Digital pathology comes with unique technical challenges: whole-slide images with file sizes of several gigabytes and resolutions up to 100,000 x 100,000 pixels. You’ll help design and implement solutions such as efficient image streaming via an advanced image server, ensuring that our AI models can be served reliably to pathologists, labs, and partners worldwide. In this role, you will play a key part in building up Mindpeak’s AI agentic development knowledge, tooling, and workflows. You’ll work on: * Building a new platform for digital pathology using a modern, multi-agent AI coding workflow. * Turning cutting-edge AI models into robust, scalable APIs for real-world clinical use * Building tools and services to automate our data annotation and image processing pipelines * Integrating scanners, image viewers, and lab information systems into seamless, automated workflows * Shaping and scaling AI-supported development workflows across teams * Shaping technical decisions from the ground up in a fast-moving, high-impact environment Your Responsibilities * Design, develop, test, deploy, maintain, and improve backend services that serve machine learning models in production. * Write clean, maintainable, and well-tested code with a strong focus on reliability and performance. * Build automation tools to streamline and optimize our data annotation pipeline. * Work with technologies such as Docker, AWS, Python, and (partially) React to develop best-in-class digital pathology tools. * Integrate existing pathology hardware and software (e.g. scanners, image viewers, LIS) into automated workflows. * Manage your own project priorities, deadlines, and deliverables with a high degree of ownership. * Collaborate closely with product, design, front-end, deep learning, and infrastructure colleagues to keep everything running smoothly. * Select and implement the most effective technical approach for each task. * Build up AI agentic development workflows, including the evaluation and adoption of AI coding agents to improve developer productivity and software quality. * Define best practices for AI-assisted software development and share this knowledge across the organization. YOUR PROFILE Background & Experience * MSc in Computer Science or a related field, or equivalent practical experience. * At least 3–5 years of professional experience with impactful contributions to software products. * Strong track record in backend development with Python. * Experience with Linux and Docker; Linux server administration/operations is a plus. * Extensive experience leading and mentoring junior developers. * Hands-on experience working with AI coding agents or AI-assisted development tools (e.g. agentic coding frameworks, LLM-based developer tools). * Experience in orchestrating AI coding agents * Experience with Google Jules, Cursor or Claude Code Skills & Mindset * Solid software engineering skills; experience with web development (JavaScript and CSS) is a plus. * Curiosity for technical hardware devices and experience interfacing with them via APIs. * Interest in the technological ecosystem of laboratories (e.g. whole-slide scanners, image viewers). * Enjoy working in interdisciplinary teams and “thinking outside the box.” * Able to work independently and drive your own projects forward. * Strong analytical skills and a commitment to continuous learning, mentoring, and knowledge sharing. * Strong interest in AI-driven software engineering and emerging development paradigms. * Willingness to take ownership beyond pure implementation and actively shape how software is built at Mindpeak. * Comfortable in a fast-paced, dynamic environment with shifting priorities. * Fluent in English; German is a plus. WHAT MINDPEAK OFFERS * The opportunity to bring cancer diagnostics to a whole new level and make a real impact on patient care. * An open, creative work environment with flat hierarchies and quick decision-making. * Close collaboration with a skilled, international team and experienced management. * Diverse, engaging projects that help you deepen both your technical and domain expertise. * A centrally located Hamburg office with a beautiful view over the harbor. APPLICATION DETAILS Please send us: * CV * University certificates and transcripts of records * Job references * Salary expectations * Earliest possible starting date Contact: * Email: jobs@mindpeak.ai Note: Direct applicants only. We do not work with recruiting agencies for this position.

Mindpeak

(Senior) Full-stack Developer - Backend Focus (Python) Company Overview: Mindpeak is a Hamburg-based scale-up at the forefront of AI-driven cancer diagnostics. Our software helps pathologists analyze medical images more efficiently and accurately - already clinically deployed in more than 25 countries. Our vision is to enable personalized and effective treatment for every cancer patient - to truly improve medical care and patient outcomes around the world. Position Summary: As a Full-Stack Developer within the ML team, you’ll play a key role in designing and building the software systems that power our AI models — from database and API development to workflow automation and UI integration. You’ll collaborate closely with our ML engineers to connect engineering excellence with cutting-edge medical AI. Please note: This is an onsite position in Hamburg. You’ll work on: * Designing and implementing robust backend services and databases for AI pipelines, model results, and clinical data. * Developing and maintaining scalable, containerized systems (Docker/Kubernetes) for large-scale image processing and inference. * Supporting workflow automation and debugging across distributed systems (e.g. Dagster, Argo, Kubeflow). * Building and extending frontend components for model management and result visualization (React.js or similar). * Collaborating with ML Scientists and Product Engineers to integrate AI models into production environments. Your Responsibilities: * Architect and optimize database systems ensuring high reliability and performance. * Automate and monitor workflow execution for model training, calibration, and inference. * Maintain and document scalable CI/CD and deployment pipelines. * Ensure code quality, reproducibility, and clarity across all development processes. Your Profile: * Strong experience in Full-Stack or Backend Development (Python, Django/FastAPI preferred). * Solid experience in database development (PostgreSQL, MySQL, or equivalent). * Experience with containerization (Docker, Kubernetes) and Linux environments. * Bonus: Experience with Machine Learning integration (model APIs, inference pipelines). * Bonus: Familiarity with MLOps/DevOps tools (DVC, CI/CD, Dagster). * Bonus: Familiarity with frontend technologies (React.js or similar). * Strong communication skills, curiosity, and motivation to work in healthcare AI. Why Mindpeak: * Join a mission-driven company developing AI that helps save lives and elevates cancer diagnostics worldwide. * Work in an open, creative environment with flat hierarchies, quick decisions, and close collaboration across disciplines. * Be part of a highly skilled, international team of engineers and scientists, guided by experienced leadership and united by impact. * Enjoy a centrally located Hamburg office with a stunning harbor view, and a culture that fosters continuous learning, autonomy, and collaboration. Application Details: We’d love to hear from you! Please send us your CV, university certificates, transcripts, references, salary expectations, and let us know your earliest possible start date. You can reach us at jobs@mindpeak.ai. For more about us, visit mindpeak.ai.   Just a quick note: We’re only able to consider direct applications—agencies, please don’t apply. Thank you!

ion2s

DEINE MISSION Du bist Entwickler, Mentor und Architekt in einem. Du erkennst Probleme bevor sie eskalieren, übersetzt fachliche Anforderungen in skalierbare Lösungen und bringst dein Team durch Reviews und klare Patterns voran. Deine Aufgaben * Entwicklung und Design von Backend-Lösungen auf Basis von Java & Spring in modernen, verteilten Systemlandschaften * Aktive Unterstützung des Entwicklungsteams durch Code Reviews, Einführung und Etablierung von Architektur-Patterns sowie technische Begleitung von Kollegen * Mitgestaltung und Weiterentwicklung der CI/CD-Pipelines und Deployment-Prozesse * Enge Abstimmung mit Produkt- und Projektverantwortlichen – du übersetzt fachliche Anforderungen in technische Lösungen * Proaktive Identifikation von Risiken, technischen Schulden und Verbesserungspotenzialen – du wartest nicht, bis Probleme eskalieren * Integration von Systemen verschiedener Dienstleister und Partner in eine konsistente Gesamtarchitektur * Souveräner Umgang mit KI-gestützten Toolchains (z. B. Copilot, agentenbasierte Workflows) sowie klassischen Entwicklungsumgebungen DEIN PROFIL Technische Skills * Sehr gute Kenntnisse in Java & Spring (Spring Boot, Spring Integration oder ähnliche Module) * Solide Grundlagen in Docker & Kubernetes – du verstehst, wie dein Code deployed und betrieben wird * Erfahrung mit CI/CD-Pipelines (z. B. GitLab CI, ARGO-CD, Helm) * Sicherer Umgang mit KI-gestützten Entwicklungswerkzeugen (z. B. GitHub Copilot, agentenbasierte Toolchains) – und du weißt, wann du sie nutzt und wann nicht * Breites Verständnis von Softwarearchitektur: Microservices, Event-Driven Architecture, API-Design, Patterns wie API-First und Saga sind keine Fremdwörter für dich * Erfahrung in der System-Integration zwischen verschiedenen Dienstleistern, Schnittstellen und heterogenen Systemlandschaften Soft Skills – für uns genauso wichtig wie die Technologie * Sehr gute Selbstorganisation: Du behältst auch in parallelen Aufgaben und wechselnden Prioritäten den Überblick – ohne dass es jemand extra einfordern muss * Starke Kommunikationsfähigkeit: Du kannst technische Sachverhalte klar und zielgruppengerecht kommunizieren – sowohl im Entwicklerteam als auch in Produkt- und Projektrunden * Navigationssicherheit in Komplexität: Du findest dich schnell in gewachsenen, heterogenen Systemen und Projektstrukturen zurecht und verlierst dabei nicht das große Bild * Team Enablement: Du siehst es als Teil deiner Rolle, andere Entwickler durch Reviews, Patterns und konstruktives Feedback weiterzubringen – nicht nur dein eigenes Ticket zu schließen * Lösungsorientierung: Du analysierst Probleme nüchtern, priorisierst pragmatisch und lieferst – auch unter Druck – umsetzbare Lösungen * Proaktive Arbeitsweise: Du wartest nicht auf Aufgabenzuweisung, sondern erkennst eigenständig, wo Handlungsbedarf besteht, und kommunizierst das offen WAS WIR DIR BIETEN * 30 Tage Urlaub und mobiles Arbeiten * Zuschüsse zum Deutschlandticket und zu WellPass * Ein starkes Team mit echtem Zusammenhalt * Modernes Büro in Top-Lage an der Hamburger Speicherstadt