Backend Developer Jobs in Hesse, Germany

Technology Team at Teneo Education builds AI-enabled products for students, teachers and education partners. The Backend Engineer II designs and maintains secure, scalable services, APIs, integrations and data flows that power multi-tenant education platforms.

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.

Backend team at BJAK builds the core systems behind the AI Neobank app, enabling scalable financial products across markets. The role designs and implements reliable APIs, workflows, and infrastructure for onboarding, payments, cards, transfers, KYC, and risk, collaborating with product, frontend, mobile, and AI teams.

Custom Software Solutions team at Sopra Steria develops tailored Java backend applications for diverse clients. The role designs, analyzes, and optimizes Spring Boot REST services while consulting customers on technical solutions.

Backend Engineering team builds AI-driven backend systems for enterprise applications. The Backend Engineer, Extensions designs, develops, and maintains high‑performance distributed workflows, collaborates with data scientists to turn predictive models into scalable services, and ensures reliability and observability in production.

Backend Engineer at Jobgether, building a high‑scale, real‑time digital platform serving millions of active users. Designs and implements robust backend microservices, collaborates with product and engineering to deliver features, and ensures 24/7 system stability and performance.

Backend Developer on the Data-Centric Services team at CounselGroupFrankfurt. Builds and optimizes C# / .NET services that power data pipelines and AWS‑hosted ETL workflows.

Backend Developer Java – responsible for designing, developing, and optimizing Java-based backend services using Spring Boot and REST. Leads code quality, CI/CD pipelines, and collaborates closely with clients.

Backend Developer (m/w/d) at Dedalus HealthCare GmbH. Join our team to design and implement modern backend applications within the Krankenhausinformationssystem ORBIS.

Backend Engineering Team at Emma Sleep builds the backbone of our global e‑commerce and SleepTech platform. The role designs, implements, and maintains high‑performance Go services, REST APIs, and event‑driven workflows on AWS, ensuring scalability and reliability for millions of users.

Backend Engineering at Nagarro builds scalable, high‑performance services that power digital products for global clients. The Senior Backend Engineer designs and implements Python‑based APIs with FastAPI, creates containerized microservices on Docker/Kubernetes, and ensures reliability through testing, monitoring, and security best practices.

AI Backend Engineering team builds MCP-based services and AI‑powered backend systems that enable internal workflows. The role designs, implements and maintains scalable TypeScript/Node.js services, serverless edge solutions on Cloudflare, and LLM integrations with strong observability.

Senior Backend Developer role at Maxon focuses on building scalable, efficient backend infrastructure using GraphQL, Redis, MySQL, Azure, Docker, Kubernetes, and CI/CD pipelines on GitLab. Responsibilities include architecting services, optimizing performance, collaborating with frontend and DevOps teams, leading scalability initiatives, maintaining legacy PHP/Ruby projects, and driving technical leadership and knowledge sharing.

Finanzen.net Group Engineering Team builds and operates the finanzen.net ZERO brokerage platform using Java, Spring Boot and AWS. The Senior Backend Engineer designs, implements and maintains backend services, handles 3rd‑level support, monitors operational dashboards and oversees end‑of‑day processing and order management. Based in Frankfurt, Munich, Berlin or Karlsruhe with hybrid work (3 days onsite per month) and up to 15 days EU workation per year.

Gateways team at Workato builds high‑performance API management and routing infrastructure that sits between external consumers and the core platform. The Senior Backend Engineer owns subsystems end‑to‑end, drives architectural decisions, and delivers features from design through production rollout.

Emma Sleep’s Backend Engineering team builds the backbone of our global e‑commerce and SleepTech platform. As a Senior Backend Engineer, you’ll design, implement, and scale Go‑based services that power our product catalog, order fulfillment, and logistics APIs.

Senior Backend Programmer at Crytek in Frankfurt. Build and evolve scalable online-backend systems for real-time game applications.

Senior Backend Engineer (w/m/d) ING – Build, run and improve reliable backend systems for ING’s Daily Banking platform. Design, develop and maintain backend applications using Spring Boot, Java, Kotlin, Oracle, SQL, and API management.