Back End Developer Jobs in Cologne

In this role, you will develop and enhance reports and dashboards, analyze sales data from various systems, and ensure their consistency and reliability for better decision-making.

In this role, you will develop database integrations and RESTful APIs, design backend architectures, and build AI pipelines for data processing for our business applications and AI systems.

In this role, you will develop and modernize Java backend systems, evaluate new technologies, and migrate desktop applications to future-proof server solutions within an agile team.

In this role, you will develop modules on IBM i using RPG IV, create IT specifications, conduct software tests, and support the introduction of new developments at the designated release dates.

In this role, you will integrate APIs and develop cloud-based solutions, orchestrate backend systems, and collaborate closely with the frontend team to realize innovative software solutions.

In this role, you develop modern backend architectures, implement microservices and APIs, integrate databases, and optimize application performance and security in an agile team.

In this position, you will develop backend services and ITSM functionalities using Java and JavaScript, analyze customer requirements, and optimize existing solutions.

In this role, you will develop backend applications using modern programming languages, maintain APIs, optimize systems, and ensure software quality through testing while collaborating closely with frontend developers.

In this job you develop web applications, landing pages, microsites and modules from concept to delivery, optimize the codebase, write automated frontend tests, implement UX designs and document the development.

In this role, you will develop robust backend applications using .NET and C#, integrate databases, optimize software performance, and work with REST APIs and cloud services.

In this role, you will design complex software solutions in the Java environment, enhance existing systems, develop interfaces, and connect database systems. You will also create documentation and ensure quality assurance.

In this role, you will develop robust backend systems in PHP, design APIs and interfaces, and ensure the performance and security of applications. You will also document and test your solutions.

In this role, you will develop server-side applications and APIs, optimize database structures, and support the integration of new data sources while closely collaborating with the frontend team.

In this role, you develop modern backend architectures using microservices and APIs, integrate databases, and optimize security and performance of applications in an agile team.

Development of high-performance backend solutions with Python using modern frameworks such as FastAPI, Flask, or Django. Designing innovative software applications in the context of artificial intelligence and large language models (LLMs). Design and...