Senior Software Development Engineer In Test

About the position

At BILL, we believe in empowering the businesses that drive our economy. By replacing outdated financial processes with innovative tools, we help businesses—from startups to established brands—make smarter decisions and gain control of their operations. And we don't stop there: we're creating the future of financial automation so businesses can spend more time on what matters. Working here means you become part of a vision-driven team that's ready to tackle challenges and build cutting-edge solutions. We value purpose, drive, and curiosity—and we thrive in a fast-paced, ever-changing environment. Whether in one of our offices in San Jose, CA, Draper, UT, or working remotely, BILLders collaborate to deliver real impact for businesses that need more time in their busy weeks. At BILL, we listen, learn, and lead—fostering collaboration and a drive for continuous growth. We're committed to building a diverse and inclusive workplace that values each person's unique skills and experiences. Even if you don't meet every requirement, we'd love to hear from you—you might be just what we're looking for, whether in this role or another. As a Senior Software Development Engineer In Test (SDET), you will understand the technical design of applications and ensure testability of the developed components. You will build test automation with the goal of providing maximum coverage in the most efficient manner.

Responsibilities

• Work 80% of time on automation and help team drive quality via good testing practices
• Collaborating with the Engineers, Product and Design to solidify and validate feature requirements (clear acceptance criteria, specifications, outcomes)
• Working with the Engineering team to create and evangelize quality assurance practices
• Writing automated tests in Java/Selenium and/or Typescript/Playwright
• Contribute to testing framework design and implementation, optimize testing process and enable quality gating within the continuous delivery pipeline for the Squad's deliverables
• Regularly write and complete manual tests, alongside automation, to verify new features, edge cases and detect regressions in old code.

Requirements

• 5+ years of professional experience working on a software development team (Cross-Functional environment preferred)
• Experience designing, implementing and running automated tests with a WebDriver-based framework
• Proficiency in Javascript/Typescript is preferred, but proficiency in any functional programming language is acceptable
• Ability to pass a leetcode style data structure and algorithm problem in a language of your choice
• Experience with determining the cause of automated test failures
• Experience documenting and completing manual tests
• Experience writing release criteria and associated test plans
• Knowledge of CI/CD pipelines

Benefits

• 100% paid employee health, dental, and vision plans (choose HMO, PPO, or HDHP)
• HSA & FSA accounts
• Life Insurance, Long & Short-term disability coverage
• Employee Assistance Program (EAP)
• 11+ Observed holidays and wellness days and flexible time off
• Employee Stock Purchase Program with employee discounts
• Wellness & Fitness initiatives
• Employee recognition and referral programs