About the Job The Platform is a ~140,000-line Rust workspace spanning 24 crates: no_std embedded primitives, an async Tokio daemon, a 30,000-line distributed consensus engine, post-quantum cryptographic infrastructure, and a real-time WebSocket dashboard. It targets defense and critical infrastructure deployments where deterministic execution and zero-panic guarantees are non-negotiable. We need a Rust engineer who can own the full workspace from hardware abstraction layers to API servers, hold the architecture sound as the system scales to full multi-site production, and treat the no-panic policy as an inviolable contract.
Duties & Responsibilities- Own and extend the multi-crate Rust workspace: consensus engine, coordination engine, transport layer, daemon orchestration, data ingestion, hardware abstraction layer, and 18+ supporting crates
- 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
