Senior Software Development Engineer in Test

Relativity Space • Long Beach, CA

7h

About The Position

As a Senior SDET on the Vehicle Software TRADE (Test, Release and Deployment Engineering) team, you will own the automated validation lifecycle of integrated vehicle software. You will design and lead end-to-end testing frameworks that ensure each software release is reliable, traceable, and ready for use across production, integration labs, and launch environments.
This role is deeply cross-functional and requires strong technical judgment, attention to detail, and proactive problem-solving. You will work with software, hardware, systems, and operations teams to define validation scope, align quality gates, and deliver releases that maintain readiness and consistency while adapting to evolving requirements, configuration changes, and fast-moving timelines.

Requirements

• 5+ years of experience in software development or test engineering, including 2+ years architecting automated test frameworks for integrated systems combining hardware, firmware, and software
• Proven ability to design and scale unit, integration, and system-level automation frameworks, with strong software skills in Python, Rust, or C++ for tooling, validation pipelines, and simulation workflows
• Excellent debugging skills, strong ownership, and attention to detail, with ability to operate in fast-paced, cross-functional environments
• Familiarity with CI/CD workflows, containerization (Docker), telemetry/log aggregation, and automated test pipelines
• Demonstrated ability to work effectively across software, hardware, and operations teams to align on delivery milestones and integration needs.

Nice To Haves

• Experience in aerospace, robotics, safety-critical systems or embedded real-time applications
• Hands-on experience validating embedded, real-time, networking or hardware-integrated systems, including controller, sensors/actuators, communication buses, and timing-sensitive behaviors
• Familiarity with Conda, GitLab CI/CD, Grafana, version control practices, artifact repositories
• Experience working with hardware-in-the-loop (HITL), simulation environments, or large-scale system integration
• Strong analytical skills and experience supporting data reviews, root cause investigations, or release audits

Responsibilities

• Own the architecture and implementation of scalable automation frameworks (primarily using Python and/or Rust) to validate full-stack vehicle software including FSW, ESW, and configuration artifacts across software-in-the-loop (SITL), hardware-in-the-loop (HITL), and integrated system environments, leveraging reusable libraries, automation services, and structured validation interfaces
• Develop automated integration and end-to-end test suites that exercise real-time control flows, telemetry, mission sequences, and failure scenarios in both SITL and HITL setups
• Implement automated test cases and analyzers that benchmark performance, validate qualification metrics, and publish dashboards (e.g., Grafana) to improve traceability and data-driven decision making
• Drive continuous test execution through CI pipelines (BVT, integration, nightly, weekly) to deliver fast regression feedback and release confidence
• Lead system-level test execution during release cycles—prepare environments, execute scenarios, evaluate results, and maintain traceable artifacts
• Validate subsystem integrations prior to full-system execution, perform root-cause analysis during anomalies, and coordinate with development teams for resolution
• Present release readiness reviews by aggregating test results, metrics, quality gates, and risk assessments
• Mentor engineers on automation architecture, instrumentation strategies, and scalable test-design patterns

Benefits

• Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more!

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed