Rust Developer Seattle - WA - Washington

Competencies:

6+ years experience required

Digital : Amazon Web Service(AWS) Cloud Computing

Advanced Java Concepts

Microsoft SQL Server 2019

Java Performance Tools (Jprobe, Jensor, OptimizeIT)

Must Have TechnicalFunctional Skills:

Rust Development

Memory & Performance Optimization

JavaJVM Internals

Distributed Systems & AWS

AI Agent-driven Development & Testing

Roles & Responsibilities:

Drive Java-to-Rust migrations as a DRAM-reduction lever: apply the decision framework to identify genuinely memorylatency-bound services (JVM overhead as a structural ceiling), rank APIs by traffic, and own each migration end-to-end from analysis through cutover.

Bring deep system expertise to the agent-driven workflow: define type hierarchies, module boundaries, and API contracts drive and unblock the Rustify agents rather than merely operating them and contribute improvements back to the framework when you hit friction.

Establish oracle-based correctness and prove functional equivalence: capture production requestresponse pairs as the source of truth and validate the Rust implementation via progressive zero-diff testing (RustifyComparator) from small samples to full 1000+ scale, distinguishing real bugs from acceptable non-determinism.

Implement on the target stack and optimize for memory: build on Smithy Rust Server SDK, ECS Fargate (ARM64Graviton), CargoBrazil, CDK with @amznpipelines, and CloudAuth then profile hotspots, stress test, and quantify DRAMlatency savings with no functional regression.

Execute safe rollout and operations: shadow deploy in Gamma and Prod to prove equivalence on live traffic, drive gradual cutover (canary to 100%) with rollback at each stage, stand up observability (dashboards, alarms, runbooks), and align API compatibility with upstreamdownstream teams.

Codify reusable learnings: migration guides, runbooks, and friction logs