Rust & Go Systems Architect for Scalable AI Runtime

Workato; Sofia (NM); On-site; USD 140,000 - 190,000; Full time

Job summary

Workato is seeking a senior Rust engineer to design and evolve core language and runtime features across the Expression Language, Data Mapper, and Decision Engine. You will extend the Rust core and embed it as a native component inside Ruby and Go services via FFI bindings, enabling safe, high-performance data processing.

The role partners with Product and the AI team to expose components, advance WASM sandboxing, and guide architectural decisions.

Qualifications

• Deep, hands-on Rust experience at a systems/backend level.
• Working competence in Go with production ability.
• Proven experience embedding Rust as a library or native extension inside another language's runtime.
• Strong algorithms and data-structures fundamentals.
• Ability to work in a deadline-driven, cross-team environment.
• Experience with AI-assisted workflows, particularly in system analysis and hunting for inconsistencies and corner cases.
• Experience with high-scale systems handling millions of requests per day.
• Exceptional technical writing and communication abilities.
• Experience planning phased implementations and leading complex cross-team projects.
• Proven track record with feature flags, gradual rollouts, and zero-downtime deployments.
• Ability to facilitate architectural decision-making and create technical roadmaps.
• Mentorship mindset and cost analysis capabilities.

Responsibilities

• Design and build core language and runtime features across the Expression Language, Data Mapper, and Decision Engine.
• Own and extend the Rust core, embedding it as a native component inside Ruby and Go services via FFI bindings.
• Help expand Decision Engine from static rules to support formulas.
• Contribute to WASM sandboxing so each component runs safely isolated from the others.
• Partner closely with Product and with the AI team on what these components need to expose.

Skills

Rust

Go

FFI bindings

Algorithms

Data structures

Technical writing

Architectural leadership

Cross-team collaboration

Mentorship

Cost analysis

scale systems

Tools

Wasmtime/Wasmer

WASM

Ruby

Go runtime

Job description

Workato is seeking a senior Rust engineer to design and evolve core language and runtime features across the Expression Language, Data Mapper, and Decision Engine. You will extend the Rust core and embed it as a native component inside Ruby and Go services via FFI bindings, enabling safe, high-performance data processing.

The role partners with Product and the AI team to expose components, advance WASM sandboxing, and guide architectural decisions.