Senior Systems Test Software Engineer

About this role

• We are seeking a Systems Software Test Engineer to own and drive the testing strategy for the software stack that runs on every Saronic vessel. You will join the Software team to take an already substantial collection of test capabilities, Hardware-In-The-Loop (HITL) station infrastructure, virtual machine integration tests, replay-based evaluation, and simulation and turn them into a single, principled, easy-to-extend verification platform
• Just as importantly, you will introduce other testing approaches like property-based testing, fuzz testing of our protocol and message-bus surfaces, deterministic simulation and fault injection testing for safety-critical state machines
• You are a software engineer first, whose product is the confidence the rest of the team has when shipping code to a vessel in the open ocean
• You will work closely with our autonomy, perception, systems, controls, networking, and infrastructure teams to design and develop full system validation frameworks that run as native Rust unit and property tests, as VM-based integration tests, on real HITL stations bridged into real hardware, and in simulation against captured fleet data
• Your work will directly impact mission reliability by catching edge cases early and ensuring that what runs on a vessel has been adversarially tested long before it ever sees water
• Own and drive the test initiatives for Saronic’s system software, including the HITL test catalog and station orchestrator, HITL-VM bridge framework, NixOS-based VM integration test suite
• Design and roll out a unified test strategy that combines our primary tools: Rust unit and property tests, VM-based integration tests, HITL-based tests, and replay/simulation based scenario tests into a single decision tree so that the right test type covers the right risk class at the right cost
• Build out property-based and deterministic simulation testing across the software stack. Expand coverage to the libraries where invariants matter most (p...