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Who we are

In a life without sound, our work provides meaning. As a leading provider of innovative hearing care solutions, we are not just a company that makes products: we are a team on a mission to help people enjoy the delight of hearing. To enable a life without limitations, we – through our core business brands Phonak, Unitron, Hansaton, Advanced Bionics and AudioNova – develop, manufacture and distribute solutions that push the limits of technology and redefine the future of our industry.

Valencia (CA), United States

Senior, Software Development Engineer in Test


Covid Protocol:

Upholding the company values is extremely important to Sonova, we take the health and safety of our employees, patients, customers and their families very seriously. To that end, we have concluded that the best way to ensure the safety of these individuals is to mandate that all of our newly-hired employees be fully vaccinated for COVID-19. Therefore, when considering whether to apply for this position, please know that in order to become employed by Sonova (if otherwise eligible), you must provide satisfactory proof, such as a vaccine card or other documentation, that you are fully vaccinated for COVID-19. You will not be required to provide this proof unless and until you receive a formal job offer from Sonova. Please also know that Sonova will provide accommodations to qualified individuals who cannot receive the COVID-19 vaccination because of a sincerely held religious belief or due to a medical issue or pregnancy.

What you’ll do:

As a software engineer, the Software Developer in Test (SDET) will work with developers and software testers to design and implement test/automation software to test new features and perform regression testing.  


The SDET will participate in code and design reviews to influence system design and architecture and ensure testability of new features.


The SDET will also develop test architectures, methodologies, tools and comprehensive test plans. This includes documenting test architecture, test plans and test cases.


Key Tasks & Responsibilities      

•        Support formal test execution (automated and manual tests).

•        Automate functional requirement tests.

•        Execute manual and automated test plans.

•        Develop automated tests that increase measured code coverage.

•        Develop white-box tests.

•        Assess developer implementations for testability and required quality attributes.

•        Provide guidance to software developers on how to change their implementations for better testability.

•        Analyze code to ensure alignment and identify gaps between code, requirements, and test cases.

•        Implement automated test infrastructure.

•        Analyze output of static and dynamic code analysis tools and drive code improvement.

•        Drive test analysis through test suite code coverage and data analysis tools and report on quality KPIs.

•        Identify product risk areas and mitigate them through targeted testing.


Travelling Requirement     Click here to enter text.



What you bring to the team:

CS Degree


Work Experience    

•        4 years - automated testing of commercial or regulated software.

•        4 years - coding and debugging in at least of the following languages: C#, C++, Java,  Typescript

2 years testing IEC 62304 or 82304 regulated software.

Personal Competencies     Click here to enter text.

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Social Competencies        

•        Strong teamwork and collaboration skills

•        Strong analytical, problem solving and creative thinking skills.


Professional Competencies        

•        Designing and creating software test platforms

•        Developing C# tools and applications

•        Building automation test suites, libraries, and test harnesses

•        Strong understanding of test automation fundamentals

•        Experience with Software Quality Assurance methodologies (e.g., Functional, Stress, Acceptance, Validation)

•        Software development best practices as well as practical knowledge of object oriented design principles and development.

Experience configuring CI/CD systems

Language(s) / Level         Excellent written English communication skills.          Click here to enter text.


IT skills       

•        Whitebox Testing

•        Automated Testing

•        Code impact analysis

•        C# Development

•        Code coverage tools        

•        Unit-test frameworks (e.g., NUnit, MS Test, XUnit)

•        WPF

•        Gherkin syntax

•        C# Commercial Application Development


Our offer:

Exciting and challenging work environment

Comprehensive benefits package

Training and development opportunities – we believe every employee deserves a development plan. Come, learn, and grow with us!

Don't meet all the criteria?  If you’re willing to go all in and learn we'd love to hear from you! 


We love to work with great people and strongly believe that a diverse team makes us better.  We guarantee every person equal treatment in regard to employment and opportunity for employment, regardless of race, color, creed/religion, sex, sexual orientation, marital status, age, mental or physical disability.


We thank all applicants in advance; however only individuals selected for an interview will be contacted.  All applications will be kept confidential. Sonova is an equal opportunity employer. Applicants who require reasonable accommodation to complete the application and/or interview process should notify the Director, Human Resources.






Sonova is an equal opportunity employer

We team up. We grow talent. We collaborate with people of diverse backgrounds to win with the best team in the market place. We guarantee every person equal treatment in regard to employment and opportunity for employment, regardless of a candidate’s ethnic or national origin, religion, sexual orientation or marital status, gender, genetic identity, age, disability or any other legally protected status.