Software Engineer II

Company Description

Guardant Health is a leading precision oncology company focused on guarding wellness and giving every person more time free from cancer. Founded in 2012, Guardant is transforming patient care and accelerating new cancer therapies by providing critical insights into what drives disease through its advanced blood and tissue tests, real-world data and AI analytics. Guardant tests help improve outcomes across all stages of care, including screening to find cancer early, monitoring for recurrence in early-stage cancer, and treatment selection for patients with advanced cancer. For more information, visit guardanthealth.com and follow the company on LinkedIn, X (Twitter) and Facebook.

Job Description

Position Summary:

At Guardant Health, we leverage the most advanced technologies and work with leaders in many different fields to create the most impactful and meaningful technologies for cancer management.

To support Guardant Health’s leadership in disruption of cancer treatments, the Enterprise Software team is looking for an experienced and energetic full stack software engineer to build applications, products, and APIs that reach Guardant Health’s stakeholders and customers. This role follows a hybrid work schedule from our Palo Alto, CA office.

Essential Duties and Responsibilities

• Design, build, and maintain scalable Java microservices that support enterprise data delivery.
• Implement and extend integrations with LabVantage LIMS and other internal tools.
• Develop and maintain customer-facing RESTful APIs and backend services for data exchange.
• Collaborate with product management to translate requirements into production features.
• Apply best practices in code quality, testing, and architecture; contribute to ongoing technical improvements.
• Build and maintain automated unit, integration, and regression tests as part of regular releases.

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or related field.
• 3+ years of professional software development experience.
• 2+ years of production experience with Java or similar languages (C#, Python).
• 2+ years of experience developing RESTful APIs and enterprise data integration solutions.
• Strong experience with relational databases, schema design, and structured data formats (XML/JSON).
• Hands-on experience with cloud services (AWS, Azure, or equivalent).
• Familiarity with messaging systems (e.g., queues, topics, pub/sub).
• Experience working in an agile development environment.
• Knowledge of test automation and CI/CD practices.

Preferred Qualifications

• Experience with LabVantage LIMS or similar platforms.
• Proficiency with Java frameworks such as Spring Boot.
• Experience with Kubernetes or containerized deployments.
• Familiarity with data security and compliance in regulated environments.
• Strong debugging and performance optimization skills.

Additional Information

Hybrid Work Model: At Guardant Health, we have defined days for in-person/onsite collaboration and work-from-home days for individual-focused time. All U.S. employees who live within 50 miles of a Guardant facility will be required to be onsite on Mondays, Tuesdays, and Thursdays. We have found aligning our scheduled in-office days allows our teams to do the best work and creates the focused thinking time our innovative work requires. At Guardant, our work model has created flexibility for better work-life balance while keeping teams connected to advance our science for our patients.

The US base salary range for this full-time position is $103,110 to $141,780. The range does not include benefits, and i