Senior Software Engineer in Test

What if the work you did every day could impact the lives of people you know? Or all of humanity?

At Illumina, we are expanding access to genomic technology to realize health equity for billions of people around the world. Our efforts enable life-changing discoveries that are transforming human health through the early detection and diagnosis of diseases and new treatment options for patients.

Working at Illumina means being part of something bigger than yourself. Every person, in every role, has the opportunity to make a difference. Surrounded by extraordinary people, inspiring leaders, and world changing projects, you will do more and become more than you ever thought possible.

Position Summary:

We are seeking a Software Engineer to join the Primary Analysis Test Team. The engineer will work closely with primary analysis developers to understand product requirements, translate them into effective test infrastructure and test strategies.

The role is accountable for ensuring the reliability, robustness, refinement, and release readiness of primary analysis software. Focus will be on designing, developing, and maintaining automated test framework which validate core primary analysis functionality, boosting confidence in software during development. It also involves supporting continuous integration pipelines, collaborating across teams, tracking defects found during test cycles, supporting release candidate verification.

Responsibilities:

• Design, implement, and maintain tests and test frameworks for primary analysis software, including unit, integration, and system-level tests
• Work with the primary analysis development team to understand new features, changes, and risk areas
• Expand and maintain test coverage as primary analysis capabilities and responsibilities evolve
• 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
• Ensure tests are clear, well-documented, reproducible - supporting long-term maintainability

Requirements:

• Extensive knowledge and experience with C#, Java Core, or similar
• Experience developing production-quality software or test code
• Experience writing and maintaining automated tests for complex software systems
• Strong problem-solving skills and attention to detail
• Ability to collaborate effectively with developers and other team members
• Experience collaborating in a fast-paced team environment and delivering high-quality software products using established agile development methodologies

Preferred Requirement:

• Experience testing data-intensive, scientific, or computational analysis software
• Experience with Python and Python visualization libraries
• Experience with the software release process documentation and/or deliverables
• Familiarity with CI/CD pipelines and automated test execution
• Exposure to performance, scalability, or reliability testing
• Basic experience with product software lifecycle tool(s)

Education & Experience:

• Typically requires a minimum of 5 years of related experience with a Bachelor’s degree; or 3 years and a Master’s degree; or a PhD without experience; or equivalent work experience. ​
• Bachelor’s degree or higher in Computer Science, Engineering, Bioinformatics, or a related field (or equivalent experience)
• 5+ years of professional experience developing production-quality software or test code

Listed responsibilities are an essential, but not exhaustive list, of the usual duties associated with the position.  Changes to individual responsibilities may occur due to business needs.

The estimated base salary range for the Senior Software Engineer in Test role based in the United States of America is: $129,400 - $194,000. Should the level or location of the role change during the hiring process, the applicable base pay range may be updated accordingly. The range reflects long‑term growth in the role. Most candidates are hired between the minimum and middle of the range. Placement depends on experience, skills, location, and internal equity. Additionally, all employees are eligible for one of our variable cash programs (bonus or commission) and eligible roles may receive equity as part of the compensation package. We offer a wide range of benefits as innovative as our work, including access to genomics sequencing, family planning, health/dental/vision, retirement benefits, and paid time off.

We are a company deeply rooted in belonging, promoting an inclusive environment where employees feel valued and empowered to contribute to our mission. Built on a strong foundation, Illumina has always prioritized openness, collaboration, and seeking alternative perspectives to propel innovation in genomics. We are proud to confirm a zero-net gap in pay, regardless of gender, ethnicity, or race. We also have several Employee Resource Groups (ERG) that deliver career development experiences, increase cultural awareness, and offer opportunities to engage in social responsibility. We are proud to be an equal opportunity employer committed to providing employment opportunity regardless of sex, race, creed, color, gender, religion, marital status, domestic partner status, age, national origin or ancestry, physical or mental disability, medical condition, sexual orientation, pregnancy, military or veteran status, citizenship status, and genetic information. Illumina conducts background checks on applicants for whom a conditional offer of employment has been made. Qualified applicants with arrest or conviction records will be considered for employment in accordance with applicable local, state, and federal laws. Background check results may potentially result in the withdrawal of a conditional offer of employment. The background check process and any decisions made as a result shall be made in accordance with all applicable local, state, and federal laws. Illumina prohibits the use of generative artificial intelligence (AI) in the application and interview process. If you require accommodation to complete the application or interview process, please contact [email protected]. To learn more, visit: https://www.dol.gov/ofccp/regs/compliance/posters/pdf/eeopost.pdf. The position will be posted until a final candidate is selected or the requisition has a sufficient number of qualified applicants.