Senior Backend.NET Developer (m / f / d)

Optimus Search; Köln; Remote; EUR 65.000 - 85.000; Vollzeit

Zusammenfassung

A leading energy innovator in Germany, Nordrhein-Westfalen, Köln, is seeking a Senior Software Developer to develop scalable software solutions powering sustainable energy initiatives. The role requires strong expertise in C# / .NET, Microservices, and Azure cloud services. Fluency in German is essential for this remote-first opportunity.

Qualifikationen

• 4+ years of hands-on experience in backend development with .NET / C#.
• Strong expertise in Microservices architecture and REST APIs.
• Hands-on experience with Azure cloud services.

Aufgaben

• Create and develop scalable microservices.
• Design and optimise SQL databases.
• Implement event-driven architectures.

Kenntnisse

C# / .NET

ASP.NET Core

Microservices architecture

REST APIs

Azure cloud services

Containerisation with Docker

Kubernetes

Fluency in German

Ausbildung

Degree in Computer Science or Software Engineering

Tools

Entity Framework Core

RabbitMQ

Azure Functions

Azure Kubernetes Service (AKS)

Azure Service Bus

Azure SQL

Azure Blob Storage

Jobbeschreibung

About us

Embark on a transformative journey as a Senior Software Developer with a world-renowned energy innovator committed to reshaping the future of our planet's energy landscape. In this unique opportunity, you'll be at the forefront of cutting-edge technology, contributing to the development of software solutions that power sustainable energy initiatives worldwide.

Tasks

• Creating and developing scalable microservices using C# / .NET and ASP.NET Core.
• Designing and optimising SQL databases with Entity Framework Core for high-performance applications.
• Implementing event-driven architectures using RabbitMQ for messaging and distributed processing.
• Deploying and managing cloud solutions with Azure Services (Azure Functions, Azure Kubernetes Service (AKS), Azure SQL, Azure Service Bus, Azure Blob Storage).
• Containerising applications with Docker and orchestrating them using Kubernetes.
• Ensuring high code quality through unit and integration testing, CI / CD pipelines, and automated deployments.

Profile

• Degree in Computer Science, Software Engineering, or a related field.
• 4+ years of hands-on experience in backend development with .NET / C#.
• Strong expertise in Microservices architecture, REST APIs, and event-driven systems.
• Hands‑on experience with Azure cloud services, particularly Azure Kubernetes Service (AKS), Azure Functions, Azure Service Bus, and Azure SQL.
• Experience with Docker and Kubernetes for containerised application deployment.
• Strong analytical skills, problem‑solving mindset, and the ability to work independently in a remote‑first environment.
• Fluency in German.