Senior Software Engineer 100% in Thônex

Ref | Date: 5 Oct 2026

Ärztekasse Genossenschaft provides business process outsourcing and eHealth solutions to health professionals so they get relief from administration and can focus on medical work.

In the context of an innovation initiative, Ärztekasse is renewing and extending their products. To support this digitalization step, we are looking for smart and experienced engineers to contribute and shape clever and creative solutions for a meaningful industry.

Senior Software Engineer (m/w) 100%

Main Tasks

• Design, implementation & maintenance of applications and services for our billing tracking products
• Collaboration with requirements engineers and business analysts to detail and clarify understanding and requirements
• Support of testing team in regards of functional and non-functional tests of the implemented applications
• Participation in definition and design of solution architectures, under the guidance of the tech lead
• Documentation of code and design
• Implementation of proofs of concept to validate and show solution architectures
• Participation in the definition of technology and tool stacks to be used for new solutions
• Contribute to raising the technical level of the team through code reviews and day-to-day collaboration with less experienced colleagues

Requirements

• Bachelor degree or higher in Computer Science, Computer Engineering or the equivalent in experience
• At least 8 years of experience in software development
• Strong backend development experience with server-side development (WebAPI, multi-threaded systems) using .NET (C#, Entity Framework, Dependency Injection)
• Strong experience with SQL language (Postgre, SQL Server, Sybase)
• Knowledge of architecture and development patterns ( Microservices, CQRS, Domain Driven Design, SOLID, Unit Testing)
• Experience with CI/CD (Git, Azure Devops, Bitbucket, Bamboo)
• Knowledge of authentication/authorization services and integration is a plus
• Knowledge of containerization (Kubernetes) is a plus
• Knowledge of ETL solutions (Apache Airflow) is a plus
• Experience with VB language is a plus
• Knowledge of Agile methodologies
• Collaborative with excellent communication skills
• Self-driven and self-organized
• French is required: C1 or higher
• English is required: B2 or higher
• German is a plus

Team Context

You'll join a team of 6 developers with heterogeneous seniority (from junior to senior), working on our billing tracking products, under the guidance of the team's tech lead. As a senior profile, you'll bring strong technical expertise to the team, contribute actively to architecture discussions, and support the growth of less experienced colleagues — while remaining hands-on in the codebase.

What we offer

- 40h/per week
- 1 day home office option
- Highly innovative and international working environment
- Free parking
- Language trainings

Further information

You'll join a 6-person development team with mixed seniority, working on our billing tracking products — a domain where reliability and precision matter as much as clean architecture. Reporting to the team's tech lead, you'll have real opportunities to influence technical decisions and contribute to architecture discussions, while working alongside both confirmed developers you can help grow and senior engineers to exchange ideas with. We are solution-driven, but we don't neglect the fun factor

We look forward to receiving your application!

We look forward to receiving your application only by jobUp.

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