Full Stack Developer II

HMA is the premier third-party health plan administrator across the PNW and beyond. We relentlessly deliver on our promise to provide medium to large-size employers with customized health plans. We offer various high-quality, affordable healthcare plan options supported with best-in-class customer service.

We are proud to say that for three years, HMA has been chosen as a ‘Washington's Best Workplaces' by our Staff and PSBJ™. Our vision, ‘Proving What's Possible in Healthcare™,' and our values, People First!, Be Extraordinary, Work Courageously, Own It, and Win Together, shape our culture, influence our decisions, and drive our results.

What we are looking for:
We are always searching for unique people to add to our team. We only hire people that care deeply about others, thrive in evolving environments, gain satisfaction from being part of a team, are motivated by tackling complex challenges, are courageous enough to share ideas, action‑oriented, resilient, and results‑driven.

What you can expect:
You can expect an inclusive, flexible, and fun culture, comprehensive salary, pay transparency, benefits, and time off package with plenty of personal development and growth opportunities. If you are looking for meaningful work, a clear purpose, high standards, work/life balance, and the ability to contribute to something important, find out more about us at:

Full Stack Developers at HMA are builders, problem‑solvers, and collaborators. Whether you're just starting your engineering journey or participating in helping lead large projects, you'll work across the full technology stack: C#, .NET, SQL, JavaScript/Type Script, cloud services, and modern Dev Ops pipelines. This helps HMA create reliable, scalable, and user‑friendly applications that serve our members!

Our developers grow through hands‑on experience, mentorship, and increasing ownership. Early‑career engineers learn the foundations of clean code, Git workflows, and testable design while partnering closely with QA teams, PMO, Claims, and more. As developers advance, they take on more complex features, influence architecture, strengthen CI/CD automation, and help shape how we deliver software in our hybrid Agile/Waterfall environment.

• Build end‑to‑end features across UI, API, and database layers
• Improve SQL performance through indexing, query optimization, and schema refinement
• Develop REST APIs with proper error handling, logging, and validation
• Refactor legacy code to improve maintainability and testability

• Manage feature branches and resolve complex merge conflicts
• Review pull requests from junior developers with constructive feedback
• Follow and enforce branching strategies (Git Flow, trunk‑based, etc.)

• Write comprehensive unit and integration tests

Work with QA to:

• Define test cases for Playwright automation
• Validate API contract tests in Postman
• Participate in defect triage and root‑cause analysis
• Ensure code is testable and supports automation frameworks

• Enhance built pipelines by adding automated tests, static analysis, or linting
• Contribute to deployment scripts and environment configuration
• Troubleshoot pipeline failures and improve reliability

• Estimate work accurately and identify risks early
• Collaborate with product owners to refine requirements
• Support hybrid Agile/Waterfall delivery by adapting to project needs

• Strong understanding of .NET Core, SQL optimization, and front‑end frameworks
• Solid Git proficiency and familiarity with CI/CD
• Ability to collaborate effectively with QA, product, and operations
• Strong debugging and problem‑solving skills

Knowledge, Experience and Attributes:

• Bachelor's degree in Computer Science, Software Engineering, Information Systems, or a related field required
• 3-5+ years of professional full‑stack development experience
• Proficiency in:
  • C#/.NET Core
  • SQL optimization and relational database design
  • JavaScript/Type Script and modern UI frameworks
  • Strong Git skills (branching strategies, resolving conflicts, reviewing PRs)
  • Experience writing unit and integration tests
  • Ability to…