Backend Developer Jobs in Lower Saxony, Germany

Sopra Steria’s AI Backend team builds robust backend components for data‑intensive AI applications, designing API architecture, integrating models, and optimizing Neo4j graph‑database solutions. The role involves creating RESTful APIs, developing inference pipelines, and collaborating on AI portfolio prototyping and delivery.

Factory of Tomorrow Team at Zellerfeld Shoe Company builds the next‑gen manufacturing platform. As a Backend Developer you will design and maintain REST and GraphQL APIs, own end‑to‑end services, shape architecture, and build async pipelines linking hardware, production, and customer systems.

Backend Engineering at Bjak builds the core systems behind the AI Neobank app. The role designs and implements reliable APIs, workflows and financial product infrastructure that scale across markets and millions of users, collaborating with product, frontend, mobile and AI teams.

Backend Development team at elbkapitäne GmbH & Co. KG focuses on building scalable server-side services and APIs. The Teamlead drives architecture decisions, mentors engineers, and ensures reliable delivery of backend solutions in Hamburg, on-site.

Optiplay is hiring a Middle+/Senior Backend Developer to design and maintain external integrations with casino operators and partner platforms, with about 70% of the role focused on integration work and 30% on general backend and platform system design. Day-to-day work includes building resilient integration layers, contributing to core services and APIs, participating in slot game logic development, defining integration testing practices, and collaborating with Game Logic, Product, and DevOps t

Backend Developer at Baanx will design, build, and maintain high‑performance services for digital asset platforms. The role focuses on Node.js microservices, PostgreSQL data stores, and integration with crypto custodians, exchanges, and other third‑party APIs.

Turnblock.io backend team builds modular services for a tokenization platform. The Backend Developer (NodeJS) designs, implements, and maintains NodeJS/Express APIs, integrates third‑party RESTful services, and collaborates with frontend and blockchain engineers to deliver scalable products.

Mindpeak AI team builds AI-powered digital pathology platforms to enable personalized cancer treatment. The Senior Backend Developer designs, implements, and scales Python backend services that serve machine learning models, handle massive whole-slide images, and integrate scanners and lab systems.

ML team at Mindpeak, a Hamburg-based AI-driven cancer diagnostics scale‑up, builds the software that powers medical AI models from data pipelines to UI. The role designs robust backend services, containerized image‑processing systems, and workflow automation, while also extending frontend components for model management. On-site in Hamburg, full‑time, with a focus on integrating AI into production environments.

Development Team at Mindpeak builds AI-powered backend services for digital pathology, enabling pathologists to diagnose cancer faster with scalable, high‑quality APIs. The role designs, develops, tests, and deploys backend systems that serve machine learning models, automates data annotation pipelines, and integrates scanners and lab information systems.

We are seeking a Backend Developer to join our engineering team in Hamburg, Germany. The role focuses on designing, implementing, testing, commissioning, and maintaining high-performance backend systems for a mobile advertising platform.

Engineering team at bisure GmbH builds scalable backend services for the company's digital platform. The Senior Backend Developer designs, implements, and optimizes server-side applications, collaborates with cross-functional teams, and ensures high performance and reliability.

Backend Engineering team at elbkapitäne GmbH & Co. KG builds scalable server-side services and APIs supporting the company's financial platforms. The Senior Backend Developer designs, implements, and optimizes core backend systems, collaborates with cross‑functional teams, and mentors junior engineers.

AEM Backend Developer on the Digital Experience team, building enterprise-grade digital experiences using Adobe Experience Manager. Designs, develops, and maintains backend AEM solutions, integrates REST APIs, and collaborates with multidisciplinary teams to deliver scalable web content management platforms.

Engineering Team at payabl. builds scalable, high‑performance backend services for fintech and payments platforms. The Senior Backend Python Developer designs and implements Python microservices, integrates third‑party APIs, and drives performance improvements using AWS, Docker, and CI/CD pipelines.

Engineering team at zeitsprung GmbH focuses on building scalable backend services for their platform. The Senior Backend Developer designs, implements, and optimizes APIs and data pipelines, collaborates with cross‑functional teams to ensure reliability and performance, and mentors junior engineers.

CHECK24 Explorer team builds data‑driven recommendation systems for travel and activity bookings. The Full‑Stack Developer creates end‑to‑end features, designs scalable PHP and Go services, and enhances the Next.js frontend while integrating AI‑powered recommendation engines.

HolidayPirates Group is a travel deals company seeking a Backend Engineer to design, build, and maintain core backend services and scalable APIs using Clojure. You will collaborate with product and engineering teams, contribute to system performance and reliability, and participate in technical decisions with real ownership.

Engineering team at Valuedesk builds a state-of-the-art B2B SaaS platform. The Senior Software Engineer develops and implements new backend features, shapes architecture, and collaborates with product management to deliver maximum customer value.

Backend Engineer on the BI App team at About You, building smart BI solutions with Node.js and TypeScript to power data-driven insights across fashion e-commerce. The role focuses on managing large data volumes in Google BigQuery, developing high-traffic APIs with minimal latency, and collaborating with product managers, data scientists, and analysts to iterate on features.