Senior Reliability Engineer (ISRDS3) (R0000187)

Houston, TX, USA

Full-Time Exempt Position

U.S. Citizenship Required

About the Role

Intuitive Machines is looking for a Senior Reliability Engineer to join the Integrated System Health Management (ISHM) team.

The Integrated System Health Management (ISHM) team determines the states and conditions of a vehicle or a system in the past, present, and future. ISHM is an enabling technology that fulfills a common operational need regardless of spacecraft or mission. It can be applied to vehicle processing, pre-launch operations, mission operations, systems analysis, training, etc., for both manned and unmanned missions. It directly addresses the affordability of launch and mission operations by supporting operations. It also supports crew autonomy for missions and is a critical technology for next-generation mission operations that require crew autonomy, such as Lunar Gateway and missions to Mars.

The foundational system information for the ISHM activities in this task are physics-based and engineering models, safety and mission assurance data products, system schematics, instrumentation lists, and so forth. These models and system information are used in a variety of applications such as diagnostics, prognostics, advanced caution and warning, and determination of system state in complex engineering systems.


The Senior Reliability Engineer will develop, integrate, and test software and models for ISHM systems including the Advanced Caution and Warning System (ACAWS) for NASA’s Autonomous Systems and Operations (ASO) Project. ACAWS will be evaluated in both a simulated flight controller environment and in a simulated on-board flight architecture using the Core Flight Software (CFS) system to assess the operational benefits of higher quality health management information in a variety of nominal and failure scenarios, and the task includes definition and development of these evaluation scenarios.  CFS software will be exercised in real-time environments typical of critical flight software and functional and performance analysis will be conducted to determine the computational resources required in a full-scale operational autonomous system. The ASO project will demonstrate ACAWS with NASA’s Lunar Gateway simulations to detect and isolate any failures that occur and to assess performance in actual operational conditions, and assist with evaluations of operations concepts, displays, and fault models in the Gateway Vehicle Systems Lab at JSC. The ASO project will also demonstrate and evaluate health management technology for Gateway Vehicle System Manager reference architecture for autonomous control. The project will use Gateway design and failure behavior information with simulated or live system data using Gateway simulation and test facilities.

Additional Responsibilities:

  • Development of the Gateway Fault Model and producing Gateway Fault Model Design Documents

  • Be an essential lead design engineer for supplying the fault model requirements and failure dependency diagrams and will work closely with the fault modeling engineer to build a comprehensive model using Qualtech Systems Testability, Engineering and Maintenance System (TEAMS)

  • Analyze the outputs from the model and document in the Fault Management Design document

  • Will gather design data, determine what faults can occur in the system, what data is available that can indicate when a fault has occurred, and then assist in building all the information into a fault model using the TEAMS tools. Once the model is built, the model will be used to conduct various fault analyses as program fault-related issues come up. In the case where a single fault could result in a system hazard, the fault model and engineering expertise from the candidate will be needed to help craft a design solution

  • Testing and verification work as the model is put into on-board software

Required Education/Experience/Skills

  • Bachelor’s degree in Electrical, Systems Engineering or related field.

  • 6 + years of related experience

  • Fault management experience in industry

  • System fault analysis, and failure modes and effects analysis (FMEA) skills

  • Experience with Safety & Mission Assurance analysis such as Fault Trees, Hazard identification, Reliability Block Diagram Analysis (RBDA), etc.

  • Experience with software test procedures and software test plans

  • Diagnostic modeling review and analysis

  • Assess and design fault responses at a vehicle level

  • Plan and develop test cases for fault-related system testing, including assessments of fault simulations

  • Define fault detection tests from telemetry and software inputs

  • Working knowledge of TEAMS fault modeling tool (not necessarily model development, but knowing how the model works)

  • System engineering skills, from requirements to verification

  • Familiarity with Verification and Validation standards

  • Diagram drawing experience with a drawing tool such as Visio or an equivalent

  • Ability to work independently with high level direction

  • Well organized and thoroughly documents work


Essential Requirements

  • Must be a U.S. Citizen and successfully complete a U.S. government background investigation.

  • Applicant selected may be subject to government security investigation and must meet eligibility requirements

  • Work may involve sitting for extended periods

  • In compliance with the U.S. federal government’s vaccine mandate, only candidates who will be fully vaccinated for COVID-19 by December 8, 2021 or who have a reasonable accommodation or approved medical exception will be considered for this position.