Software Systems Engineer
Axiom Space3 months ago
Houston, TX, USAStaff+
Responsibilities
- Author functional, performance, safety, cybersecurity, and interface requirements using a model-based requirements approach.
- Maintain bidirectional requirements traceability across ConOps, system, software, design, and test lifecycle stages.
- Lead requirements reviews, change control boards, and impact assessments.
- Define interface control documents, message schemas, timing budgets, and failure behaviors.
- Participate in software architecture trades involving partitioning, redundancy, data flows, and modes or states.
- Collaborate with avionics, network, FPGA, hardware, and software teams on end-to-end system integration.
- Plan and author verification methods and define testable acceptance criteria.
- Support integration activities across SIL/HIL environments, benches, labs, and flight or field test readiness.
- Support safety analyses and derived requirements, including hazard analysis, fault response, and criticality or DAL determinations.
- Communicate project progress, status, and potential issues to stakeholders and leadership.
- Implement and maintain agile project management methodologies throughout the project lifecycle.
Requirements
- U.S. citizenship or permanent residency, successful completion of a pre-employment background check and drug screening, and eligibility for required export-control access.
- Demonstrated experience authoring and managing software or system requirements, maintaining bidirectional traceability, defining interfaces, supporting integration, and planning or executing verification activities.
- Proficiency with at least one requirements-management tool such as Jama, DOORS, or Innoslate.
- Hands-on MBSE experience using SysML or an equivalent modeling language in a tool such as Cameo, Rhapsody, or Innoslate.
- Working knowledge of JIRA, Confluence, and project or risk-management practices.
- Bachelor’s degree in aerospace, electrical, systems engineering, computer science, or another technical or engineering field, plus 10+ years of systems engineering experience on software-intensive programs or an equivalent combination of education and experience.
- Strong organization, problem-solving, communication, technical rigor, execution discipline, and cross-functional collaboration skills.
- Preferred experience includes aerospace or spaceflight systems, human-rated or safety-critical programs, SIL/HIL integration, test benches, flight or field test readiness, safety analyses, GitLab CI or equivalent DevSecOps tooling, and Agile or hybrid Agile/waterfall environments.
- INCOSE membership or ASEP/CSEP certification is preferred.
Benefits
- Work is generally performed in an office environment in Houston, TX, with possible indoor or outdoor work depending on the task.
- Evening and weekend work may be required to meet critical project milestones.
- The role may require access to export-controlled technical data or technology and additional export-control screening under NASA, ITAR, or EAR requirements.
- Work may involve sitting or standing for extended periods and lifting or carrying up to 25 lbs.
- Axiom Space is an equal opportunity employer.
Tech Stack
GitLab CI/CD
Categories
About Axiom Space
Axiom Space builds and operates commercial human spaceflight services and orbital infrastructure, including Axiom Station, a planned commercial successor to the ISS. The company sells private astronaut missions plus in‑space research and manufacturing opportunities, and it develops NASA’s next‑generation lunar EVA spacesuit under the xEVAS contract. Founded in 2016 and headquartered in Houston, it is privately held and will first attach station modules to the ISS before operating a standalone platform.