Backend Developer Jobs in Germany

YOUKI Backend Team builds an international platform at the intersection of cleantech, blockchain and fintech to help achieve climate targets. The Backend Developer designs and implements containerized microservice applications using JavaScript/Nest and Java/Spring, mentors junior developers, and may lead solution architecture with blockchain components.

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 Developer role at DKB Code Factory in Berlin. Join a dynamic team building Kotlin and Spring‑Boot microservices, exposing REST APIs and integrating with internal and external systems to create seamless signup flows for customers.

Backend Development Team at wynwood tech LLC builds robust API-driven services for digital asset management platforms. The role involves developing Node.js backend solutions, integrating headless CMS like Contentstack, and supporting Bynder workflows for enterprise clients.

Backend Development Team at a leading European tech company. Builds and maintains e‑commerce backend services, focusing on Node.js, API design, and integration with platforms like Commercetools, NestJS, and Boomi.

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.

Mobile Backend Development team builds backend services for mobile applications, enabling seamless connectivity and performance across iOS and Android platforms. The role designs, implements, and maintains Kotlin Multiplatform and Java/Spring APIs, integrates AWS services, and manages CI/CD pipelines with Docker and GitLab.

Bitlane is a dynamic startup with 7 years of experience, headquartered in Berlin’s green Grunewald district. We build tailored web and app solutions for clients worldwide, fostering a collaborative, family‑like culture and a healthy work‑life balance.

Backend Developer Java at Custom Software Solutions, part of Sopra Steria's #OneTeams, develops tailored software solutions for modernization, agile transformation, and smart collaboration. You focus on backend development with Java, analyze and optimize challenging applications, advise customers at eye level, and apply AI tools to support innovative, sustainable client solutions.

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.

As a Kotlin Backend Developer at Devoteam, you will work within an agile team focused on API-first applications, managing the entire software lifecycle from requirements engineering through implementation to Go-Live and support. You will design scalable and resilient backend architectures based on REST with a focus on high availability and performance, translate business requirements into technical solutions, and integrate and model databases while driving the automation of operational backend p

As a Kotlin Backend Developer at Devoteam, you will work within an agile team focused on API-first applications, managing the entire software lifecycle from requirements engineering through implementation to Go-Live and support. You will design scalable and resilient backend architectures based on REST with a focus on high availability and performance, translate business requirements into technical solutions, and integrate and model databases while driving the automation of operational backend p

Sopra Steria, a leading European management and technology consultancy, seeks an AI Backend Developer to build robust backend components for data-intensive AI applications. Day-to-day work includes designing API architectures, integrating AI models, optimizing graph database solutions (e.g., Neo4j), and developing data and analysis workflows.

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

Optimizely Backend Development team builds and maintains backend services for Optimizely-powered sites. The role designs and implements APIs, integrates third‑party systems, and creates reliable background processes such as webhook handlers.

As a Senior Backend Developer (m/f/d) C# | Java at BEUMER Group in Beckum, North Rhine-Westphalia, Germany, you combine hands-on software development with technical leadership to drive innovative intralogistics software solutions. Day-to-day, you break down system designs, lead feature development, drive quality through architecture and peer reviews, estimate and prototype new ideas, mentor colleagues, and evaluate AI tools and agent frameworks to enhance engineering workflows.

Backend Development Team at wynwood tech builds scalable e‑commerce services for European retailers. The role designs, implements, and maintains Shopify backend solutions, custom apps, and APIs using Ruby on Rails and Node.js. Remote work from Berlin or anywhere in CET, full‑time or part‑time, with a 12‑month contract and possible extension.

We are seeking a Java Backend Developer to join our dynamic technology team in Rostock. The role involves designing, building, and maintaining high-performance back‑end services and APIs using Java, C#, and JavaScript, while leveraging containerization with Docker and Kubernetes and cloud platforms such as AWS and Azure.

Technology Projects team at GRAS Global Risk Assessment Services builds sustainable cloud platforms and backend services. The Senior DevOps Engineer will co‑own AWS/GCP infrastructure, design CI/CD pipelines, manage Docker containers, and develop Python APIs for geospatial data processing.

R&D Team at Outdooractive develops the technical foundation of the Outdooractive platform, ensuring performance, scalability and stability. The Backend Developer designs, implements and maintains Java EE web applications, conducts code reviews, automates tests and optimizes server infrastructure for API partners.