SwiftUI Rust full stack developer

Job Title: SwiftUI Rust Full stack Engineer

Location: Remote

Duration: Long term Contract

JOB DESCRIPTION:

What you'll do

• Own customer-facing features end-to-end, across the Swift/SwiftUI client and the Rust backend that powers it.
• Build and evolve the Finder-grade file browser, bridging AppKit (NSCollectionView, NSTableView, NSBrowser, NSPathControl) into SwiftUI where SwiftUI alone won't cut it.
• Design and evolve the gRPC / Protobuf contract between the app and the agent as the product grows.
• Work in a large Rust workspace of shared crates — async/tokio, fault-tolerant, built to run reliably on customers' machines.
• Ship native: code signing, entitlements, notarization, sandboxing, launchd services, and real observability (os.Logger and friends).
• Balance speed, performance, and future scalability — and know which one matters most for the change in front of you.

What you bring

Must-have (core, non-negotiable)

• Swift + SwiftUI with real AppKit experience. The Finder-grade file browser leans heavily on AppKit (NSCollectionView, NSTableView, NSBrowser, NSPathControl via NSViewRepresentable), so hands-on AppKit experience matters here.
• Rust — async/tokio, comfortable in a large workspace of shared crates.
• Strong concurrency and async on both sides: Swift async/await (MVVM, @Observable) and Rust tokio/futures.
• gRPC / Protocol Buffers — designing and evolving a versioned RPC contract as clients evolve.
• macOS platform fluency — launchd services, code signing, entitlements, notarization, sandboxing, os.Logger.

Where you could make a big impact

Strong candidates will have some of these — and going deep in any one is a way to have outsized impact on the product.

• GraphQL client work (Apollo iOS or equivalent — normalized caching, codegen, subscriptions).
• Filesystem internals — FUSE / FSKit / WinFSP, NFS mounts, FSEventStream / inotify-style change observation. This is the hardest-to-hire and highest-leverage skill on the team.
• P2P and networking systems — WebRTC, NAT traversal, signaling, WebSockets, NATS or similar message transport.
• Cross-platform systems thinking — the agent also runs on Windows (WMI, Windows services, winreg, WinFSP).

Nice to have / bonus

• Rust ↔ ObjC interop (objc2), or FFI experience generally.
• Media-pipeline exposure — GStreamer, AVFoundation, thumbnail / transcode workflows.
• Secure secret storage and auth flows — OAuth2, Stronghold / Keychain, Argon2.
• XcodeGen or other project-generation / reproducible-build tooling.