Senior Software Development Engineer in Test

Wellth•Santa Monica, CA

1d•$145,000 - $175,000•Hybrid

About The Position

Wellth is a fast-growing, growth-stage digital health company headquartered in Los Angeles. Our mission is to motivate people living with chronic conditions to make healthier choices, every single day. We use behavioral economics, habit science and technology to motivate lasting behavior change in some of the highest need and most underserved populations in the US (Medicare and Medicaid), drastically changing their quality of life and health outcomes. We have demonstrated results with several large insurers and health systems (e.g. reducing hospitalizations by over 40%), and are now rapidly scaling. Our goal is to be the category leader in improving health outcomes for hard-to-engage populations. A key difference at Wellth compared to other digital health companies is that our users (Members) actually use Wellth every single day - think TikTok tier daily engagement (and data generation!). But most importantly, our work quite literally saves lives by stabilizing chronic disease patients and preventing disease progression, hospitalization, and other bad outcomes. We are a mission-driven company where you work with incredible talent and see tangible differences directly from your impact. You have the opportunity to build systems that drive healthy habit experiences We're building a modern mobile app deployment system that treats automated testing as a first-class citizen,where quality is shifted left into the development workflow, quality gates block bad deployments, and continuous testing is woven throughout our CI/CD pipelines. You'll be instrumental in making this vision a reality.

Requirements

5+ years of professional experience writing test suites with proficiency in a programming language such as TypeScript, Java, or Python
5+ years of professional experience working with automated testing frameworks for front-end and back-end systems such as Playwright, Appium, Selenium, Robot, or Watir
5+ years of professional experience with different testing techniques (e.g. performance, unit, integration, automated), their strengths and weaknesses, and ability to use them to best effect
5+ years of professional experience working in a team environment, contributing to a shared codebase, sharing technical knowledge through technical talks and documentation, and implementing developer tooling to improve team efficiency
1+ years of professional experience using AI coding assistants (e.g., Claude Code, GitHub Copilot, Cursor) to accelerate development workflows, with demonstrated ability to train others on effective AI-augmented engineering practices
2+ years of professional experience providing technical leadership or mentorship to junior and mid-level engineers, including code reviews, architecture guidance, and professional development support
3+ years of professional experience integrating with CI/CD systems such as CircleCI, GitHub Actions, or Jenkins
A consistent track record of solving complex technical quality problems with reliable delivery of their solutions
Demonstrated ability to context-switch effectively between strategic initiatives and urgent priorities without sacrificing quality or momentum
Clear and concise verbal and written communication
Have a strong quality mindset that promotes driving best practices in testing and continuously raising the quality bar
Serve as a tech lead for quality engineering—setting technical direction and standards without formal direct reports, leading through expertise and influence
Take ownership of features from start to finish and collaborate well with engineers and other cross-functional roles
Embrace AI-assisted development as a force multiplier, continuously exploring new tools and techniques while helping teammates adopt them effectively
Teach, coach, and mentor other engineers, being a force multiplier for the team
Be a part of the solution that is helping to fix all aspects of healthcare, from providers to payers to, most importantly, the person seeking care

Nice To Haves

3+ years of professional experience working with cloud infrastructure such as AWS, Google Cloud, or Microsoft Azure
2+ years of professional experience working with relational and NoSQL databases
5+ years of professional experience with Git and version control best practices
1+ years of professional experience working with large, highly confidential data sets in healthcare, legal, government, or financial industries
Proficiency working in an agile Scrum development lifecycle
Proficiency with mobile and API development
Familiarity with different testing categories, such as performance, penetration, and accessibility testing
Knowledge of data security to protect highly confidential and sensitive data
Experience working with healthcare products and data
Experience building or contributing to shift-left testing strategies and quality gate implementations in mobile deployment pipelines

Responsibilities

Build and scale test automation—develop frameworks and suites for mobile, API, and backend systems; convert manual tests to automated; create reusable testing components across teams
Champion AI-augmented quality engineering—leverage Claude Code, GitHub Copilot, and Cursor to accelerate test development while evangelizing best practices organization-wide
Lead without authority—mentor junior and mid-level QA engineers through code reviews and pairing; collaborate with Mobile and Quality teams to embed consistent testing practices
Integrate quality into CI/CD—implement quality gates that block bad deployments, support code promotions, and define SLAs for system quality
Influence system design—advocate for testability in architecture decisions; shape processes that build a high-quality culture
Balance strategic and urgent work—navigate quarterly focus shifts while remaining responsive to high-priority issues across teams