Senior Rust Developer — Qt Bridge for Rust

Qt Bridge for Rust lets developers build Qt Quick / QML user interfaces with a pure-Rust backend without needing C++. The library is built on CXX and CXX-Qt for the C++/Qt interop layer. The team has deep Qt platform expertise including the meta-object system, C++/QML engine internals, and code generation.

• Senior-level Rust experience in production, including ownership/borrowing, Rc/RefCell/Weak, unsafe code, Pin, and lifetime-parameterized APIs
• Experience with Rust ↔ C++ FFI, ideally using cxx, for safe wrappers over C++ lifetimes
• Procedural macro development experience with syn, quote, and proc-macro2 and good compile-error diagnostics
• Experience designing and stabilizing a public library API using idiomatic Rust, semver, and deprecation practices
• Cross-platform Rust build engineering experience (build.rs, linking native libraries on Linux, MSVC, macOS)
• Strong testing and quality discipline including automated tests, cargo fmt/clippy, documented safety arguments, and rustdoc on public API
• Comfortable with threat modeling and security review for systems-level, memory-unsafe-adjacent code
• Working knowledge of Qt 6 features and enough C++17 to understand and modify the bridge's C++ layer
• Experience with Gerrit-style code review workflows
• Professional written and spoken English

Nice to have:

• Prior contributions to Qt, CXX-Qt, qmetaobject-rs, or similar bindings
• QML/Qt Quick application development experience
• Published crates on crates.io
• Familiarity with rcc, Qt resource handling, or QML debug/preview protocols
• Async Rust (tokio) integrated with native event loops
• Existing Qt Account / Qt Contributor Licence Agreement

• Contribute production-quality Rust and where needed, C++ code, tests, and documentation to the Qt Bridge Rust repository
• Work on object-model, memory-safety, type-system, and macro-related issues
• Design and stabilize a public library API including semver and breaking-change management
• Participate in structured threat analysis and security review of the Rust/C++ FFI surface
• Maintain build and testing across Linux, MSVC, and macOS
• Conduct code reviews via Gerrit and communicate daily with the team
• Keep Jira issues current and participate in weekly sync calls

Exclusions:

• No changes to Qt itself (qtbase, qtdeclarative)
• No product management, roadmap, or release ownership
• No end-user or community support

Location: Poland (Wrocław)