Job Description

Senior Mobile Engineer (React Native, Expo)

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ADHD care is broken, but we're fixing it. Kantoko makes high quality ADHD care accessible, from diagnosis to long term support and care.

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This is a rare opportunity to be an early engineer in a fast-moving startup led by a successful founder (prev startup acquired by American Express). You'll have an outsized impact on the product, processes, and engineering culture.

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Working at Kantoko, you have a direct impact on our 1000+ patients. We're changing people's lives and your work directly contributes to this every day.

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We're looking for a Senior Mobile Engineer (React Native) who loves their craft and is excited to help build the future of mental health care from the ground up.

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Once in a lifetime opportunity to join a fast-growing health startup as a Senior Mobile Engineer

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About the role:

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- As Kantoko's Senior Mobile Engineer, you'll own the Patient Mobile App from initial architecture through to App Store / Play Store release and beyond.
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- Work with product, design, and operations to turn (sometimes very rough) ideas into scoped features and shipped code.
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- Define and evolve our mobile architecture, testing strategy, and release pipeline (Expo EAS, CI/CD, over-the-air updates).
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- Implement and own mobile observability (crash reporting, analytics, alerts) and a predictable release train.
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- Lead core platform plumbing: push notifications, deep links, secure/auth flows, permissions, and accessibility.
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- We see engineers as problem solvers – you'll be involved directly in the what, when,



and how of product development, not just handed tickets.
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What you'll bring:

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- You're excited about joining an early-stage startup (12 people) and taking full ownership of the mobile app from day one.
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- You ship fast and iterate quick – you're comfortable getting a v1 into users' hands and improving it weekly.
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- You have deep experience with React Native and Expo, and strong Typescript proficiency.
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- You have shipped at least one meaningful mobile app to production (App Store / Play Store) as a primary contributor and supported it in the wild.
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- Your architecture instincts are solid: navigation, state management, error handling, etc.
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- You're passionate about great performance and smooth UX.
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- You're pragmatic and know how to prioritise effectively.
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- You're excited to work closely with designers and other engineers to ship great experiences.
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Current / Planned Mobile Stack:

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- React Native + Expo
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- TypeScript
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- Expo EAS / CI/CD and OTA updates
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- Backend APIs built on Python/Django (existing web platform)
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Why work with us:

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- Hybrid working environment – 3 days in the office (near Central Station).
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- Own a piece – generous ESOP plan.
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- Great team culture – work alongside our small and quirky team.
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- Embrace the purple – we celebrate what makes people unique and thrive when everyone feels safe to bring their full self to work!
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- Have an impact – rare opportunity to have a direct positive impact on patients every day.
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If you have any additional questions about careers at Kantoko you can email us at [email protected]

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📌 Senior Mobile Engineer (React Native, Expo) (New South Wales)
🏢 Kantoko
📍 New South Wales