Backend developer C# / Tester Job at SIG Group (Neuhausen)

Backend developer C# / Tester

SIG Group

Location:
Switzerland , Neuhausen

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

SIG is the place for you to build something incredible. We offer competitive compensation and an opportunity to partially work from home. If you join us, you will be part of a globally successful international company, which is leading its industry in sustainability, technology, and more. We think of ourselves as the career launchpad - a place to develop yourself fast with real work, real experience, real opportunities to build skills. You will be part of a highly motivated and dynamic team, you will have personal development opportunities, trainings and coaching opportunities from senior team members. If you show skill and willingness to learn, we'll back you all the way.

Job Responsibility:

Maintain and develop our core application and its extensions
Design modern Web APIs, including authentication and encryption
Ensure unit tests and interface testing are performed
Ensure high security standards of the Web applications
Provide good quality documentation using appropriate tools (e.g., Swagger)
Give support in the implementation of interfaces for other teams
Close cooperation with external suppliers and other relevant SIG departments
Ideally support and extend our externally developed web interface

Requirements:

At least 3 years of experience in C# and Web Development
Experience in agile software development with Scrum
Experience working with REST APIs
Understands how to create intuitive User Frontends (UI) and how to improve User Experience (UX)
Fluent in English, fluent in German is a plus
Has an analytic mindset and is able to transfer concepts into code
Good communication skills and can work as part of a team
Experience in the implementation of web applications and a deep understanding in modern IT architecture

Nice to have:

Ideally, more than 2 years of frontend experience in JavaScript, Typescript, React
Ideally, more than 2 years of backend experience in NodeJS
Ideally, experience in using npm for web applications and Git for code versioning
Appreciated skills: C#, React, Typescript, System design, Unit-Testing and mocks, Software documentation, Git Version Control. Optional: MongoDB
Application experience: Visual Studio. Optional: Jira, Katalon, WPF, Azure DevOps, Docker, Cloud

What we offer:

Competitive compensation
Opportunity to partially work from home
Part of a globally successful international company
Personal development opportunities, trainings and coaching opportunities from senior team members

Additional Information:

Job Posted:
April 05, 2026

Employment Type:

Fulltime

Work Type:

Hybrid work

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