Senior Mobile App Developer (React Native/Expo)

proline Australia
Remote
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AI Summary

Develop and maintain a B2B SaaS product mobile app using React Native and Expo. Lead development, make architectural decisions, and ensure app reliability. Collaborate with the team to shape the product and its features.

Key Highlights
Lead mobile app development
Make architectural decisions
Collaborate with the team
Key Responsibilities
Own the mobile app
Lead development of React Native and Expo app
Make decisions on architecture, structure, and tooling
Ship features end-to-end and keep the app fast and reliable
Shape what we build
Get involved early when we're figuring out what to build
Turn rough ideas into simple, usable product decisions
Think through flows, edge cases, and the details that make the product feel solid
Work across the stack when needed
Work comfortably in our monorepo across mobile, backend, and web
Jump into backend or web code when it helps move things forward
Build and maintain integrations across systems, especially around our Convex backend
Technical Skills Required
React Native Expo TypeScript Convex
Benefits & Perks
Competitive salary ($125k-$150k)
Fully remote
Small team with high ownership
Nice to Have
Experience with Convex or similar realtime or event-driven systems
Experience working on small, fast-moving teams

Job Description


React Native / Expo · Full-time · Remote (Can be in any country)


About the role

We’re a small team building a B2B SaaS product our customers rely on every day.


You’ll own the mobile app end-to-end, from early ideas through to what ships in production.

Most of your time will be spent building in React Native and Expo.


There’s no dedicated product or design layer. You’ll be involved in shaping what we build, how it

works, and how it feels to use.


We move fast, keep the team small, and expect people to take real ownership.


What you’ll do


Own the mobile app

● Lead development of our React Native and Expo app on iOS and Android

● Make decisions on architecture, structure, and tooling

● Ship features end-to-end and keep the app fast and reliable


Shape what we build

● Get involved early when we’re figuring out what to build

● Turn rough ideas into simple, usable product decisions

● Think through flows, edge cases, and the details that make the product feel solid


Work across the stack when needed

● Work comfortably in our monorepo across mobile, backend, and web

● Jump into backend or web code when it helps move things forward

● Build and maintain integrations across systems, especially around our Convex backend


What we’re looking for

● 5–8+ years of experience building software

● Strong experience shipping React Native or Expo apps to production

● Deep familiarity with the Expo ecosystem, including EAS, OTA updates, routing, and

native modules

● Solid TypeScript skills

● Comfortable working in a full-stack TypeScript codebase

● Experience building products used by customers day-to-day


Nice to have:

● Experience with Convex or similar realtime or event-driven systems

● Experience working on small, fast-moving teams


How we work

● You take ownership of problems end-to-end

● You’re comfortable making decisions without perfect information

● You know when to ask for input and when to move quickly

● You think about how the product works and feels in practice

● You write code you’d be comfortable maintaining long term


Stack

● React Native and Expo

● Convex

● React

● TypeScript


What we offer

● Competitive salary (125k-150k)

● Fully remote

● Small team with high ownership

● Direct impact on the product from day one



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