Senior Software Test Engineer - Hybrid, Data-Driven

Illumina; California; Hybrid; USD 129,000 - 194,000; Full time

Job summary

Illumina is seeking a Senior Software Engineer in Test to design, implement, and maintain test frameworks for our primary analysis software. You will collaborate with developers to understand changes and ensure robust test coverage.

This role requires production-grade Python or C# coding, familiarity with CI/CD, and strong problem-solving in a data-intensive environment. Hybrid work in the US; base salary ranges are provided.

Qualifications

• Experience developing production-quality code using Python or C#.
• Familiarity with CI/CD tools, workflows, and troubleshooting them.
• Prior background in writing and maintaining automation for complex systems.
• Strong problem-solving skills.
• Ability to collaborate effectively with co-workers on and outside the team.

Responsibilities

• Design, implement, and maintain custom test frameworks used to run and test Illumina’s primary analysis software
• Work with the development team to understand new software changes and accordingly adapt tests
• Identify gaps in existing tests and proactively develop new tests to improve reliability and coverage of tests
• Investigate test failures, triage issues, and work with developers to diagnose root causes
• Expand and maintain test coverage as primary analysis capabilities and responsibilities evolve
• Ensure tests are clear, well-documented, reproducible - supporting long-term maintainability

Skills

Python

C#

CI/CD tooling

Automation for complex systems

Problem solving

Collaborative teamwork

Education

Bachelor’s degree in Computer Science or related field

5+ years professional software/test experience

Tools

CI/CD pipelines

Automation frameworks

Testing frameworks

Job description

Illumina is seeking a Senior Software Engineer in Test to design, implement, and maintain test frameworks for our primary analysis software. You will collaborate with developers to understand changes and ensure robust test coverage.

This role requires production-grade Python or C# coding, familiarity with CI/CD, and strong problem-solving in a data-intensive environment. Hybrid work in the US; base salary ranges are provided.