Backend Developer Jobs in State of Berlin, Germany

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.

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.

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.

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.

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.

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.

Token Factory at Nebius builds a next‑generation platform that lets companies seamlessly integrate AI into products and workflows. The senior backend engineer designs and scales distributed systems in Go and Python, ensuring high‑performance inference and reliability across cloud infrastructure.

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.

We are Onfy - a German pharmacy marketplace founded in 2021. We are on a mission to constantly find new and innovative ways to support your health online.

As a Backend Developer with DevOps expertise at NeuroNation, you will be responsible for building and maintaining the robust systems and infrastructure that power our Brain Training platform. You’ll play a key role in deploying, scaling, and securing our backend services while also contributing to feature development.

Design, develop, and maintain cloud-native backend applications and services on AWS, supporting enterprise-scale IoT solutions. Build and enhance scalable APIs and backend components using Node.js and/or Python while applying microservices and distributed systems principles.

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AdTech Platform Team builds a scalable advertising technology stack serving millions of users. The Backend Engineer designs and implements high‑performance services with NestJS, integrates external A/B testing and feature‑flagging APIs, and ensures robust testing and deployment pipelines.

Engineering team at Mercanis builds the Agentic AI Procurement Suite, a modern, transparent platform for intelligent procurement. As a Backend Engineer you will develop and maintain event‑driven backend services using Node.js, NestJS and TypeScript, write clean, well‑tested code, and collaborate with product, design and senior engineers to deliver scalable features.

Backend Engineering at Trade Republic builds scalable, high‑availability services for Europe’s largest savings platform. The role designs and implements cloud services on AWS, develops backend components using Haskell and JVM technologies, and automates delivery with GitHub Actions and Kubernetes.

GALVANY-Tech drives the energy transition with an AI-based Operating System for heat pumps and integrated energy systems. As a Backend Engineer you will design event‑driven architectures in Go and Kafka, build high‑performance APIs, integrate LLMs and ML models, and own services from design through deployment and observability.

AMBOSS seeks a Backend Engineer for the Educator Experience team to shape medical education tools. You will develop the B2B 'Educator Tool' using PHP and AI-first workflows, collaborating with cross-functional teams to refine requirements and ensure code quality.

Join the Payments Team within N26's Everyday Banking domain, where you'll build and maintain modern, high-volume systems that process payment and card transactions to deliver a seamless, secure customer experience. Day-to-day, you'll discover, design, develop, test, deploy, and maintain software while managing project priorities, sharing knowledge, and proposing improvements during GSDD sessions.