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Sr. Systems Software Test Engineer

Sr. Systems Software Test Engineer

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Geocent's Aerospace & Defense Engineering Sector offers exciting and challenging opportunities in the Space and Missile Defense Industry. Geocent employees across the country subscribe to the company's culture of focusing on results when serving our large, diverse group of clients nationwide.


The key purpose of the position is to plan and perform Hardware in the Loop Test Development, Test Conduction and Test Reporting using the Systems Integration Laboratory (SIL) Hardware-in-the-Loop facility (HWIL) to verify the integrated avionics system for the Space Launch System (SLS) at NASA’s Marshall Space Flight Center.

Responsible to provide services and support for the Avionics and Ground Systems Test Branch (ES53) for the Space Launch System (SLS) program. This branch is responsible for maintenance, fabrication, integration, operation, assembly, and testing of project hardware and software. Provide test support to the Avionics and Ground Systems Test Branch for programs and projects. This support will be conducted within an existing operational Government owned and managed facility housed at MSFC. All task support shall comply with the Avionics and Ground Systems Test Branch Organizational Work Instructions (OWIs) and safety procedures. Personnel will be required to be active participants in MSFC’s safety program and International Standards Organization (ISO). Work processes are governed by Avionics and Ground Systems Test Branch OWIs. Personnel will be required to stay up-to-date on all required training, abide by branch Job Hazard Analyses (JHAs) and attend branch safety meetings. 


This is a senior level position that requires broad technical capability to perform Test Development, Test Conduction and Test Reporting of real-time HWIL systems, as well as good project management skills to define and plan the activities. Tracking and reporting progress and timely completion of milestones is essential. Problem solving and troubleshooting, including hands-on use of test equipment will be required. Develop and Execute Simulation based Tests. Provide engineering/scientist support to augment a team of Government engineers. 

  • Participate in defining verification/validation information such as Detailed Verification Objectives and success criteria.
  • Develop test scripts via a scripting language such as Python and C.
  • Write technical documents including test plans, procedures and reports to address verification requirements.
  • Review program/project documents and provide relevant comments from a test perspective.
  • Develop and use data reduction and manipulation tools.
  • Develop and perform test procedures, including pre-test setups such as instrumentation, data acquisition, software loading/configuration and post-test activities such as data archiving and data analysis.

    o Assist in producing integrated schedules, management reports and budget reports.
    o Produce, archive, and distribute test data as appropriate to support verification closure.
    o Evaluate test data to correlate with test findings and investigate potential anomalies.
    o Participate in or conduct meetings in support of the above activities.

These activities will be on-going as the launch vehicle architecture matures and the SLS program completes program phases, reviews and schedule milestones.


Degree in Electrical Engineering, Computer Science, or related field from an ABET-accredited university is required. Typically, educational requirements are the equivalent of a Ph.D., with a minimum 19 years of experience, Masters with at least 23 years of experience, or BS with at least 25 years of experience. Minimum 5 years of experience using simulation in HWIL systems testing.

Demonstrated expertise in:

  • Expertise in analysis of Requirements and Design Verification Objectives for Testability and Test Development
  • Development of optimized test plans and procedures
  • Troubleshooting and testing in support of distributed computing and simulation of launch vehicle and spacecraft systems
  • Ability to work as part of a team or as an individual contributor
  • Travel may be required expected to be no more than 5%.

Demonstrated proficiency in the use of Microsoft Office products including Word, Excel, and PowerPoint.
Ability to perform hands-on integration and troubleshooting support, including proficiency with basic lab hardware and software diagnostic tools.


U.S. Citizen only for Federal Clearance Requirement

Geocent is an Equal Opportunity Employer Minorities/Women/Veterans/Disabled/Sex/Sexual Orientation/Gender Identity/National Origin