Engineering
Head of Engineering
Lead the engineering behind px, beside our CTO, with equity in what you build.
The role
You are our first engineering hire beyond the founding team, and the second senior owner of our platform beside our CTO. This is a hands-on role: you write the code yourself, set the engineering standard, and bring in specialists when the work calls for it.
Who we are looking for
An engineer who has taken a consumer product from first build to real users at scale, and still writes the code. You know when a model should decide and when it should only explain, and you treat health data with care.
What happens next
- Your CV and short answers
- Meet Cameron, our founder
- Meet Cameron and Grayson, our co-founder and CTO
The full roleWhat you will do, what you bring, your first 90 days, what we offer and how to apply
What you will do
- Lead the decision engineIts engineering, testing and evaluation, on every release.
- Build the at-home assessmentComputer vision on iOS and Android that assesses posture, a set of exercises and a body scan from the phone camera.
- Own the connectionsApple Health, Health Connect, Garmin and Oura in; px inside the AI assistants out.
- Build the wellness hubpx's TV and web apps.
- Run the build and the releaseWith our CTO: the pipeline, the evals, and releases on both stores.
- Grow the teamBring in specialists when the work demands it, and hire and lead our next engineers.
What you bring
- You have taken a consumer product from first build to real users at scale.
- Fluency in TypeScript, React Native and Postgres, and native Swift or Kotlin.
- Machine learning or computer vision shipped to real users, and the judgment to know when a model should decide and when it should only explain.
- Care with health data: consent, security and the rules around it.
- Original thinking: something you built that nobody asked you to build.
- Pace with standards: you ship fast, finish what you start, and set the bar others build to.
Nice to have
Your first 90 days
You run the build, the release and the evals, and own the wearable connections and the AI assistants' server. The at-home assessment is capturing on real devices, the decision engine is benchmarked on every release, and the plan for the wellness hub's TV and web apps is set.
What we offer
- OwnershipA senior, hands-on role with real ownership of the engine everything at px runs on.
- EquityEquity in px from our employee option pool, earned over time.
- PayCompetitive pay, agreed with you based on your experience, with a step up when the role moves to full time.
- LocationWork from anywhere in Australia.
How to apply
Email careers@pxmembership.com with the subject line Head of Engineering: your name, and send:
- Your CV.
- Your LinkedIn, and your GitHub or links to work you can show.
- Short answers to the four questions.
The four questions
- Where are you based, and what is your notice period or earliest start date?
- What is the best consumer product you have taken from first build to real users? How many people used it, and what did you build yourself?
- Tell us about a model or decision system you put in front of real users. How did you test it, and how did you stop it giving an answer it could not stand behind?
- px runs on the phone, the watch and inside AI assistants, with TV next. Which of these have you built for, and what is the most inventive thing you built there?
