Backend Developer Jobs in Germany

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.

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.

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.

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.

Devoteam Germany, a KI-based technology consulting firm specializing in Cloud, Cybersecurity, Data, and AI, seeks a Kotlin Backend Developer to join its Frankfurt team. You will own the full software lifecycle of API-first applications in an agile setting—from requirements engineering through implementation to go-live and support—while designing scalable, resilient REST-based backend architectures.

Devoteam Consulting, a KI‑basierte Technologieberatung, delivers end‑to‑end cloud and data solutions for enterprise clients. As a Kotlin Backend Developer you will design and implement scalable REST‑API services, build resilient backend architectures, automate operational processes and mentor teammates on technical challenges.

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.

Devoteam, a KI-based technology consultancy, seeks a Kotlin Backend Developer to drive end‑to‑end API‑first software delivery within its agile teams. The role designs scalable REST backend architectures, implements high‑performance services, automates operations, and mentors peers on technical challenges.

Devoteam Germany is a KI-based technology consultancy specializing in cloud platforms, cybersecurity, data, and AI, supporting digital transformation for over 2,000 customers in Germany. As a Kotlin Backend Developer, you will own the full software lifecycle of API-first applications in agile teams—from requirements engineering through implementation to go-live and support—while designing scalable, resilient REST-based backend architectures.

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.

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.

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.

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.

Devoteam Consulting, a KI‑basierte Technologieberatung, builds cloud‑native platforms and AI‑driven solutions for enterprise clients. As a Kotlin Backend Developer you will design and implement scalable REST‑API services, architect resilient backend systems, and drive automation across the software lifecycle while mentoring teammates.

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.

AI of Manufacturing at PartSpace drives an AI-powered platform for industrial parts sourcing. The Senior Backend Developer builds and extends .NET/C# services, maintains data import pipelines, and creates tool endpoints for customer and manufacturing data, collaborating closely with Customer Success and AI teams.

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.

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.

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.