Job Description

Senior Mobile Engineer (React Native)

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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 chance 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 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 take ownership of our patient mobile app and help shape the future of mental health care.

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About The Role

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Kantoko already has a live patient mobile app used as part of how our patients access and manage their care.

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As Kantoko's Senior Mobile Engineer, you'll take ownership of that app and be responsible for making it better every week: shipping new features, improving the patient experience, strengthening the technical foundations, and helping us scale the product as we grow.

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- Own the Patient Mobile App and its ongoing technical direction, architecture and development.
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- Ship new patient-facing features from idea through to production, working closely with product, design, engineering and operations.
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- Turn sometimes very rough ideas and patient problems into well-scoped features and shipped code.
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- Evolve our mobile architecture, testing strategy and release pipeline as the product grows.
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- Own the quality and reliability of the mobile experience,



including performance, crash reporting, analytics, monitoring and error handling.
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- Maintain a fast and predictable release cadence across the App Store and Play Store using Expo EAS, CI/CD and over-the-air updates.
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- Build and improve core mobile functionality including push notifications, deep links, secure/auth flows, permissions and accessibility.
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- Improve existing parts of the app where the product or technical experience could be better - whether that means simplifying a flow, improving performance or paying down the right technical debt.
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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 and taking full ownership of our mobile app.
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- You ship fast and iterate fast - you're comfortable getting features into users' hands and improving them 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 Mobile Stack

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- Mobile: React Native + Expo
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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 - a rare opportunity to have a direct positive impact on patients every day.
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- Real ownership - you'll have meaningful influence over the mobile product, its technical direction and how we build it as Kantoko grows.
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The details

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- Role: Senior Mobile Engineer (React Native)
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- Engagement: Full-time
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- Location: Hybrid, Sydney NSW - 3 days per week in our office near Central Station
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- Experience: 2+ years of React Native experience preferred
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- Stack: React Native, Expo and TypeScript
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- Work authorisation: Australian work rights preferred
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- Benefits: Generous ESOP and flexible work-from-home arrangements
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Application Question

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Tell us about a React Native app you've worked on in production. What did you personally own, build or improve?

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📌 Senior Mobile Engineer (New South Wales)
🏢 Kantoko
📍 New South Wales