Mentra
Building the open source smart glasses operating system.
Smart Glasses OS - Software Development Engineer in Test
About the role
MentraOS is the open-source operating system for smart glasses. We support multiple hardware platforms (Mentra Live, Even Realities G1, Even Realities G2, Vuzix Z100) across iOS and Android. The test surface area is massive: 2 mobile platforms × multiple phone models × multiple glasses types × dozens of features.
We need someone to own QA. Run manual tests. Build out automated E2E testing. Make sure nothing ships broken.
What You Will Own
- Manual testing – Run tests against nightly and weekly builds. Find bugs. File detailed reports with repro steps, screenshots, screen recordings, version info, device info.
- Automated E2E testing – Build out our Maestro test suite for mobile. Start with critical paths, expand from there.
- Cloud API testing – Write tests for our TypeScript backend (API endpoints, WebSocket connections).
- Test infrastructure – CI integration, test reporting.
- Bug triage – Determine if issues are platform-specific, glasses-specific, or universal.
Currently: We have a glasses simulator in the app (~80% coverage), a master test checklist (~70 cases), an E2E pipeline started in Maestro (needs buildout), and all the hardware in our SF office. We need daily runs against nightly builds, full test matrix weekly.
Later: architect physical test infrastructure (device farms, camera rigs for capturing glasses HUD output, automated BLE testing).
Requirements
- Test automation experience (Maestro, Appium, Detox, or similar)
- Software engineering background with experience in React Native, Java/Kotlin, Swift
- Experience setting up and maintaining CI/CD pipelines
- Strong communicator – bug reports clear enough that devs fix without follow-up questions
- Self-directed – push to make progress without hand-holding
Bonus: BLE/smart glasses experience, hardware-software integration
Tech Stack
Mobile: React Native + Java/Kotlin + Swift
Backend: TypeScript, MongoDB, Azure, Docker
Testing: Maestro (mobile E2E), Jest (unit/integration)
About the interview
- Call with CTO - We’ll talk about your testing background, what you've automated, your skills, and vision alignment.
- Call with engineering team - Technical deep-dive, working style, collaboration approach.
- 1-2 week paid work trial (contract) - Hands-on work to assess mutual fit before we fully commit to each other.
- Go/No-Go decision - If aligned, we move forward.
About Mentra
Mentra is building MentraOS, the open-source OS for smart glasses. It's like Android for smart glasses.
Smart glasses hardware is finally ready, and we're building the software ecosystem to unlock the next personal computer.
Our team (ex. MIT, Tsinghua, JITX (YCS18), University of Toronto) has been building smart glasses for over 6 years.
The hardware was never ready, but breakthroughs in micro-optoelectronics has give us lightweight, all-day wearable smart glasses and put us on the precipice of the next personal computing revolution.
But the software still sucks. The apps still suck.
We're building MentraOS to change that. It's a fully open source operating system for smart glasses that unlocks this new interface for devs and brings their apps into the hands (and on the faces) of users.
This is not another B2B SaaS. We're going to eat Apple and Google's lunch. Help us architect the OS for the next personal computer.
