Senior Rust Systems Engineer

Maintain no_std compatibility across core crates for constrained embedded deployment targets

Implement and harden production readiness gates: structured logging, rate limiting, replay protection, metrics collection, and durable state persistence

Design and optimize the async runtime architecture (Tokio): task orchestration, graceful shutdown, backpressure handling, and cancellation safety

Enforce the no-panic runtime policy across the entire workspace; systematically eliminate unwrap and expect from all production code paths

Build and maintain CI pipelines, fuzz harnesses (cargo-fuzz), and property-based tests (proptest)

Manage feature-flag complexity and compilation performance across the workspace

Support multi-site deployments: cross-compilation, air-gapped packaging, and site-specific configuration

Maintain safe API boundaries between cryptographic crates and the rest of the workspace

Own the mesh member lifecycle state machine and guard all transitions against invalid progressions

Other duties as assigned

Required Qualifications

5+ years of professional Rust development in production systems

Deep no_std and embedded Rust experience: heapless, fixed-capacity collections, custom allocators

Strong async/Tokio expertise: task orchestration, graceful shutdown, backpressure, and cancellation safety

Track record building multi-crate workspaces with clean dependency management and feature gating

Experience with network protocol implementation: TCP/UDP framing, wire formats, gossip protocols

Proficiency with the Rust testing ecosystem: cargo-fuzz, proptest, criterion, integration test harnesses

Comfort with CI/CD for Rust projects: cross-compilation, clippy enforcement, MIRI for unsafe validation

Preferred Qualifications

Experience with distributed systems, fault-tolerant consensus, or distributed fault tolerance research

Prior work in defense, aerospace, or environments requiring deterministic execution guarantees

Experience building hardware abstraction layers for embedded sensors or constrained receivers

Contributions to the Rust ecosystem: open-source crates, RFCs, or conference talks

Familiarity with structured binary cryptographic envelope formats

Understanding of Merkle tree construction and public key commitment schemes

Why Join Parry Labs?

At Parry Labs, we foster a culture of curiosity and collaboration. Employees are given the autonomy to leverage their skills in creating state-of-the-art tech solutions that aid in the protection of the American Warfighter. We encourage new and bold ideas that push the status quo. It is this entrepreneurial spirit that drives us.

Parry Labs will support you with workplace flexibility, a commitment to the health and well-being of you and your family and provide opportunities to work with a purpose. We are committed to supporting your success in both your professional and personal lives with benefits such as education assistance and unlimited paid time off, just to name a few.

No One Has Time for Long Job Applications!

We completely understand, that is why we have made the application process easy. We promise. This will be simple.

Accessibility/Accommodation:

If because of a medical condition or disability you need a reasonable accommodation for any part of the employment process, please send an e-mail to HR@parrylabs.com or call (256) 682-7145 to let us know the nature of your request and contact information.