Software Development Engineer in Test (SDET)

Job Description

Job DescriptionSalary:

Who we are

At Luna Health, we are driven by a singular mission: to bring the transformative power of insulin automation to the masses. We are a venture-backed medical device startup building innovative hardware and software to make life with insulin-requiring diabetes simpler and safer.

We offer a revolutionary approach to nighttime glucose control through a next-generation patch pump and closed-loop insulin dosing algorithm.

The Role

We are seeking a Software Development Engineer in Test (SDET) to play a key role in test automation, system validation, and release quality across our platform.

This role operates at the intersection of:

• mobile applications
• connected medical devices (Bluetooth)
• cloud APIs and backend systems

You will help ensure reliable and high-quality releases while gaining experience working in a regulated medical device environment. This role is ideal for engineers looking to grow into a senior SDET role while working on complex, real-world systems.

This is a hybrid role and you must live within a reasonablecommuting distance of the Luna Health office in San Diego, CA.

Applicants must be authorized to work for any employer in the U.S. We are unable to sponsor or take over sponsorship of an employment Visa at this time.

What youll do

Test automation & infrastructure

• Contribute to automation-first testing strategies and implementation
• Develop and maintain automated tests for:
  • mobile applications
  • backend APIs
  • end-to-end system workflows
• Integrate tests into CI/CD pipelines
• Expand automated regression coverage
• Contribute to improving test strategy across unit, integration, and system layers

System & integration testing

• Execute end-to-end system tests across:
  • mobile app
  • Bluetooth-connected device
  • backend services
• Validate workflows and identify edge cases
• Test device connectivity and data synchronization
• Observe and investigate system behavior in real-world scenarios
• Debug issues across mobile, backend, and device layers with support from senior engineers
• Collaborate with mobile, firmware, and backend engineers

Validation & quality

• Support verification & validation (V&V) activities
• Develop and maintain validation artifacts (test plans, cases, protocols, reports)
• Contribute to maintaining traceability between product requirements and test coverage
• Partner with cross-functional teams to maintain audit-ready quality artifacts
• Support release readiness, including regression validation and defect triage
• Participate in release validation cycles across multiple product milestones

What you bring

Experience

• 35 years of experience in test automation or software quality engineering
• Experience testing mobile applications and/or backend systems (device or system-level experience a plus)

Technical skills

• Proficiency in one or more of:
  • Swift, Python, JavaScript, or similar
• Experience with modern test frameworks (e.g., Cucumber, XCUITest, Appium, Selenium), including mobile test automation
• Experience testing:
  • mobile applications (iOS preferred)
  • REST APIs
• Familiarity with CI/CD tools (Bitbucket Pipelines, GitHub Actions, etc.)

System & device testing

• Experience or exposure to testing connected devices (BLE/Bluetooth)
• Experience validating end-to-end system workflows

Regulated / Validation experience

• Experience working in a regulated environment (medical device, healthcare, etc.)
• Familiarity with:
  • verification and validation (V&V)
  • test traceability
  • structured validation documentation
• Familiarity with standards such as IEC 62304 is a plus

Ways of working

• Strong attention to detail
• Willingness to learn and grow in a complex system environment
• Ability to work collaboratively in a small team

Why this role matters

This role contributes to:

• reliable device integrations
• safe and compliant releases
• scalable testing across multiple product milestones

You will gain experience working on a complex, real-world system with meaningful impact on patient outcomes.

What to expect

The first step is to apply for this job on our website. Next, we will schedule a virtual interview with the hiring manager to introduce you to the company and the role. Finally, we will invite you on-site to discuss your experience and meet the team.

We are in a hurry to find the right person not in a hurry to hire so we will take time getting to know you and making sure that you will be an excellent fit for the work that we are doing.

Equal opportunity employer

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

Physical demands

The physical demands described here represent those that an employee must meet to perform the essential functions of this job successfully. Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions.

• Sit for extended periods of time at a keyboard and mouse
• Lift and move up to 25lbs
• Hearing and speaking will be required regularly
• Specific vision abilities include close and distance vision, depth perception, peripheral vision, and the ability to adjust focus

To all staffing and recruiting agencies

This posting is only for individuals seeking a job at Luna Health. Only authorized staffing and recruiting agencies may use this site or to submit profiles, applications or resumes on specific requisitions. Luna Health does not accept unsolicited resumes or applications from agencies. Please do not forward resumes to Luna Health. Luna Health is not responsible for any fees related to unsolicited resumes/applications.