Senior Software Engineer (m/f/d)

Mainz

Full-time

Permanent employee

4,050 - 6,134 € per month

Deine Mission

You want to do more than maintain existing software. You want to have a real impact on how it evolves.

As a Senior Software Engineer, you will take ownership of features from technical design through to release, working on applications that are used in production every day.

At the same time, we are tackling an exciting technical challenge: evolving our existing architecture step by step, reducing dependencies and creating clearer structures while keeping a live production system stable and reliable.

We are not looking for a Senior Engineer who simply implements predefined solutions. We want your experience to shape technical decisions, from architecture and code quality to determining which solutions will serve us best in the long term.

We are also expanding the use of AI in software development, focusing on where it can genuinely improve the quality and efficiency of our development process. This gives you the opportunity not only to work on our software, but to actively shape its technical evolution.

That's what makes this job unique

Develop and enhance our web applications using C#, ASP.NET Core and ReactJS.
Build new features and actively contribute to the modernization of our monolithic architecture towards a more modular architecture with clearly defined domain boundaries.
Help shape our AI-assisted software development practices and use AI agents throughout the development lifecycle, while ensuring that architectural decisions and code reviews remain grounded in sound technical judgment.
Build and optimize CI/CD pipelines to automate our release processes.
Take end-to-end ownership of releases within our change management process.
Ensure software quality through automated testing and code reviews.
Support new team members through technical mentoring.
Our tech stack: StackShare Verbund Pflegehilfe
Our techstack: https://stackshare.io/michaelhaas/verbund-pflegehilfe

This is what matters

These highlights will make you stand out:

Completed studies / training in computer science / computer sciences
Knowledge of communication standards in the healthcare sector e.g. FHIR / HL7
Several years of experience with C# / .Net Core / Entity Framework
Practical experience with REST / MS SQL / Angular JS / ReactJS / jQuery / HTML/ CSS / JavaScript / TypeScript
Basic understanding of build processes CI/CD / Azure DevOps and hosting with Azure
Must have: fluent English skills (B2+)
Nice to have: German skills

This awaits you

You have experience taking end-to-end ownership of a service or domain, from initial technical design through to production release.
You have several years of professional software development experience with C#, .NET Core and Entity Framework.
You have hands-on experience with REST APIs, MS SQL and modern JavaScript technologies such as React and TypeScript.
You have a solid understanding of CI/CD, Azure DevOps and hosting applications on Microsoft Azure.
You are confident using AI-assisted development tools and have the technical judgment to critically evaluate their output.
You hold a degree or vocational qualification in Computer Science, Software Development or a comparable field.
You have a good command of English at B2 level or above.