Software Systems Engineer Verified today

About Axiom Space

Axiom Space is building commercial space infrastructure and delivering technology-driven solutions for human space exploration. The company is developing Axiom Station, successor to the International Space Station, and providing commercial human spaceflight services and advanced spacesuits for lunar missions.

The Role

You will join the Commercial Space Station program in Houston, TX as a Software Systems Engineer. You will own the definition, integration, and verification of software systems supporting space operations and station infrastructure. You will work across the full software development lifecycle, spanning requirements, architecture, and interface work in a standards-driven, model-based systems engineering (MBSE) environment alongside multidisciplinary hardware, software, and avionics teams.

Key Responsibilities

• Author software and system requirements (functional, performance, safety, cybersecurity, interface) using a model-based requirements approach
• Maintain bidirectional requirements traceability across the full lifecycle: ConOps to system to software to design to test
• Lead requirements reviews, change control boards, and impact assessments
• Define interfaces (ICDs), message schemas, timing budgets, and failure behaviors
• Participate in software architecture trades: partitioning, redundancy, data flows, and modes/states
• Collaborate with avionics, network, FPGA, and hardware teams to ensure end-to-end system integration
• Plan and author verification methods (test, analysis, inspection, demonstration) and define testable acceptance criteria
• Support integration activities across SIL/HIL environments, benches, labs, and flight/field test readiness
• Support safety analyses and derived requirements, including hazard analysis, fault response, and criticality/DAL determinations
• Communicate project progress, status, and potential issues to stakeholders and leadership
• Implement and maintain agile project management methodologies throughout the project lifecycle

Required Qualifications

• U.S. citizen or permanent resident; ability to pass pre-employment background check and drug screening
• Demonstrated experience authoring and managing software/system requirements (functional, performance, safety, and interface)
• Experience maintaining bidirectional requirements traceability across lifecycle stages
• Experience defining and managing interfaces (ICDs) and supporting integration activities
• Experience planning and/or executing verification activities (test, analysis, inspection, demonstration)
• Proficiency with at least one requirements management tool (e.g., Jama, DOORS, or Innoslate)
• Hands-on experience applying Model-Based Systems Engineering (MBSE), using SysML or equivalent modeling language, in at least one MBSE tool (e.g., Cameo, Rhapsody, Innoslate)
• Working knowledge of JIRA/Confluence and project/risk management practices
• Bachelor's degree in Aerospace, Electrical Engineering, Systems Engineering, Computer Science, or another technical/engineering field; 10+ years of systems engineering experience on software-intensive programs, or equivalent combination of education and experience
• Track record of making things happen in ambiguous, fast-moving environments
• Demonstrated organization skills to meet tight deadlines with high quality results

Preferred Qualifications

• Experience in aerospace or spaceflight systems, ideally human-rated or safety-critical programs
• Experience with SIL/HIL integration environments, test benches, or flight/field test readiness activities
• Experience supporting safety analyses and derived requirements (hazard analysis, fault response, DAL/criticality)
• Experience with GitLab CI or equivalent DevSecOps/CI pipeline tooling
• Experience working in Agile or hybrid Agile/waterfall program environments
• INCOSE membership or certification (ASEP/CSEP)

Work Environment

Generally an office environment in Houston, TX. Work may involve sitting or standing for extended periods (90% of the time) and may require lifting and carrying up to 25 lbs (5% of the time). Must be willing to work evenings and weekends as needed to meet critical project milestones.

Export Control

This position may require access to export controlled technical data or technology subject to NASA regulations, International Traffic in Arms Regulations (ITAR), or Export Administration Regulations (EAR). Final candidates may be required to undergo additional export control screening to determine eligibility for access. Meeting these requirements is a condition of employment.