Staff Software Engineer - Mobile Platform

Job Description Join the team redefining how the world experiences design.

Hey, g'day, kia ora, 你好, hallo, vítejte!

Thanks for stopping by. We know job hunting can be a little time consuming and you're probably keen to find out what's on offer, so we'll get straight to the point.

Our flagship Sydney campus is uniquely the company - an extension of our Surry Hills neighbourhood. It’s a thoughtfully designed space with plenty of room to collaborate, focus, and connect.

This role is based in Sydney, and we’re looking for someone who calls it home. Our hybrid way of working gives you the flexibility to work remotely, and to come together on campus for meaningful in-person collaboration and connection when it matters most. We trust our Canvanauts to choose the balance that empowers them and their team to achieve their goals.

Mobile Platform owns how the company runs on iOS and Android, and the portable libraries layer is one of the most technically interesting pieces of the mobile bet. Every product team at the company builds on top of what this group ships. Write the foundational libraries once, in a performant system language, and run them everywhere. Rust and C are on the table.

The interface, the safety model, and the ergonomics for engineers consuming them across every runtime are the open problems.

The strategic bet is a hybrid stack with React Native at its core, supported by a set of portable libraries that run across iOS, Android, and web from a single codebase. This role sits at the heart of the portable libraries work. Hundreds of millions of users open the company on a phone or tablet, and the libraries you build will run underneath every one of them.

There's a second reason this work matters now. This is where deep mobile expertise meets systems programming. Not many engineers operate at that intersection. The ones who do shape how products like the company get built for the next decade.

• Owning the portable libraries problem space: Define and build the libraries that run across iOS, Android, and web. The interface, the safety model, and the ergonomics for consumers in every runtime are yours to shape.
• Working in system languages: Rust and C++ are the tools for the foundational layer. Build production-grade libraries that need to be fast, safe, and reliable across every device the company ships to.
• Joining a technical leadership group: This isn't a lone-Staff seat. You'll work alongside other Staff engineers shaping the mobile platform's technical direction, with room to flex into the problems where your strengths land hardest.
• Leading with code, not whiteboards: the company doesn't have an architecture function — Staff engineers stay hands-on. This role is heavily hands‑on. The work is the work.
• Communicating across the stack: The libraries you build will be consumed by frontend engineers who don't write Rust or C++. Strong technical communication isn't a nice-to-have for this role. It's how the work lands.
• Sparring with strong peers: The technical debate is hard, fast, and substantive. Bring strong opinions, change your mind when better evidence shows up. The bar is high.
• Influential Individual Contributor: No direct reports. But how you operate sets the standard others reach for.

What success looks like. The portable libraries ship to production and run reliably across iOS, Android, and web. The interface feels native to the engineers consuming it from every runtime. The patterns set by this role become the foundation that other mobile work at the company builds on.

We'd love to hear from you if you fit one or more of these. You don't need to meet all of them, but the more the better and if you join the team, we're invested in helping you grow.

• Mobile depth: Built production mobile software on iOS and Android, not just one. You understand the platforms deeply enough to know where they diverge, where they don't, and how to write libraries that feel native on both.
• System languages: Shipped production code in Rust, C++, or another system language. The portable libraries…