Senior Software Engineer in Test

Overview

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

Guardant Health is seeking an energetic and passionate Software Engineer to join its growing Software Quality Engineering (QE) team. This team is responsible for ensuring product functionality that supports customer workflows across Guardant Health’s market-leading cancer diagnostic tests, as well as integrating with various subsystems. An ideal candidate will have experience in a regulated environment, with a strong background in Quality Engineering best practices and technical expertise to deliver high-quality software products. This role requires a solid understanding of system architecture, design, and implementation to develop tailored test strategies while ensuring compliance with regulatory standards. The candidate must be able to work on parallel projects with overlapping schedules, quickly learn new technologies, and demonstrate both teamwork and leadership.

Essential Duties and Responsibilities:

• Participate in Agile scrum teams and contribute to Software Quality Engineering tasks.
• Design and execute test coverage for various functional and integration aspects of the Guardant Health Portal Solutions.
• Apply QE standards, best practices, and principles to develop quality plans that ensure optimal outcomes across multiple products.
• Create and execute automated test cases to support scheduled releases.
• Create and execute test cases in Jama for scheduled releases.
• Troubleshoot issues identified during testing and report defects, distinguishing between user error and application anomalies.
• Perform System Integration Testing (SIT) at the end of functional sprints before product release.
• Provide clear, concise feedback on defects, usability, and test results.
• Contribute to the continuous improvement of QA processes and methodologies.
• Collaborate with cross-functional teams to ensure timely and robust execution of testing in regular release cycles.
• Execute complex testing scenarios, perform in-depth statistical analysis, and interpret results independently.
• Build cross-functional relationships with business leaders, technical leads, architects, and product owners to ensure alignment with business goals and enterprise architecture standards.
  
  

• Batchelor or higher degree in Computer Science, Engineering, Bioinformatics, or related field, or equivalent project experience.
• 3+ years into Manual and Functional testing experience.
• 2+ years into Automation testing experience using Selenium with Java.
• 2+ years into API testing (Postman/Rest Assured) experience.
• 2+ year into database (SQL/MySQL, etc.), able to write SQL queries using JOINS.
• 3+ years of experience testing portal-based applications in hybrid environments leveraging HL7/XML/JSON message formats.
• 2+ years of verification and validation experience in medical device, pharma, or healthcare-regulated environments.
• 3+ years of experience in test preparation within an Agile development process (test design, test scripting, test data creation).
• Proven hands-on experience with Selenium and Core Java (ability to write code and develop test scripts).
• Experience with API testing tools such as Postman, Fiddler, SOAPUI, JMeter.
• Proficiency in SQL and database testing (e.g., MySQL, Oracle, SQL Server).
• Hands-on experience with version control systems such as Git.
• Strong ability to adapt to new technologies and design effective test strategies.
• Extensive knowledge of testing best practices, methodologies, and automated tools.
• Excellent communication and analytical skills, with the ability to identify and resolve cross-functional software quality issues.
• Experience in identifying, analyzing, and resolving system integration issues, including root cause analysis.
• Expertise in developing and maintaining SDLC documentation (Verification Plan, Reports, Risk Assessment, Traceability Matrix, etc.).
• Strong communication and presentation skills.
• Ability to deliver high-quality software releases in frequent cycles using Agile methodologies.
  
  

At Guardant Health, we are on a mission to conquer cancer with data. You’ll be part of a team that is revolutionizing precision oncology through cutting-edge technology and innovative software solutions. If you are a technically strong, people-oriented leader who thrives in a collaborative and high-impact environment, we’d love to hear from you!