Rivac LabsWebAssembly Engineer
Compiling Rust or C++ to WebAssembly unlocks real performance gains in the browser, but only if the sandboxing, memory model, and host-binding layer are done correctly — get it wrong and you've shipped a slow, unsafe binary instead of a fast, safe one. We handle Rust and C++-to-WASM compilation, sandboxing configuration, and the host-binding performance work that determines whether your WASM module actually runs faster than the JavaScript it's replacing. This is for teams with a genuine performance-critical workload — image processing, simulation, codecs — where WASM is the right tool, not a novelty. You get a working WASM module with the performance numbers to justify the added complexity.
How We’d Approach This
A clear, staged plan — not a black box
- 1
Confirm the workload is actually performance-bound in a way WASM will meaningfully improve, not assume it.
- 2
Build a pilot compilation of the core hot path and benchmark it against the current JavaScript implementation.
- 3
Review the benchmark results and sandboxing/security posture with your team before full integration.
- 4
Complete the full WASM module with host bindings and integrate it into your application.
What You Get
Deliverables from this engagement
- Compiled, working WASM module from Rust or C++ source
- Benchmark comparison against the prior JavaScript implementation
- Host-binding integration code
- Documentation of the sandboxing and security configuration
Six Ways We Could Architect This
Different engagement, different build — pick the shape that fits
There’s more than one way to deliver on this service. Browse a few of the ways we’d structure the work, depending on your speed, budget, and integration needs.
Ready to get started?
Tell us what you’re trying to get done and we’ll help you find the highest-leverage place to start — scoped small enough to prove itself before you commit to anything bigger.
Talk to us about WebAssembly EngineerMost engagements like this start as a $500–$2,500 pilot — see full pricing.