The Contract for Organizing Spaceflight Mission Operations and Systems (COSMOS), NASA’s next-generation mission operations contract, has an excellent opportunity for a System Test Engineer to join the team of testers responsible for testing the baseline software releases used in NASA Johnson Space Center’s Mission Control Center (MCC). In particular, the successful candidate will develop testing capabilities within the test team for testing of the MCC Trajectory Services (MTS). The applicant will work in a dynamic team environment and will be responsible for working with the NASA customer, users, software engineers, and commercial and international partners to capture and understand system requirements, operations concepts, and develop test plans and procedures for execution. Travel required 1–2 times per year, typically lasting several days per trip. COSMOS ensures the continuity of critical human spaceflight support by providing mission control services, advanced training systems, and full-scale spacecraft mockups for astronaut preparation and engineering analysis.
The MTS System Test Engineer is responsible for working in a dynamic team environment and will be responsible for working with the NASA customer, other systems engineers, users, and software engineers to test the MCC Trajectory Services (MTS) software. The candidate will perform patch testing, system release testing, procedure and document reviews, as well as participate in the decomposition of system architecture requirements and development of test procedures to verify those requirements, and plan test objectives for test runs. The candidate should have a good understanding of the full software development life cycle from planning, design, building, testing, deployment and maintenance.
requirements, as well as plan test objectives for test runs
and interface definition
Must have one of the following combinations of education and experience: Bachelor’s/master’s degree and 2 to 5 years of general experience.
Be able to work a flexible and dynamic work schedule
The individual should possess strong initiative, be a team player (teamwork), be flexible to changing program needs, and possess strong troubleshooting and problem-solving skills. The job requires close communication and collaboration with other engineers, the software development community and members of the user community to successfully perform analysis and test preparation. The successful candidate will be a self-learner, curious and familiar with SW engineering; will be detail oriented and have clear concise communication (able to explain technical concepts and test status up and out). To be successful, the candidate shall have the ability to work towards deadlines and deliver quality products.
This position is expected to pay $92 - $120k annually; depending on experience, education, and any certifications that are directly related to the position.
All qualified applicants will receive consideration for employment without regard to race, color, sex, sexual orientation, gender identity, religion, national origin, disability, veteran status, age, marital status, pregnancy, genetic information, or other legally protected status.
Final compensation is determined through a comprehensive evaluation of several key factors, including the candidate’s educational background, specialized technical expertise, and relevant professional experience. We also consider internal equity, prevailing market data, and specific contractual or funding requirements to ensure competitive and equitable offer alignment.
Salary starts at $92k. Final pay will be commensurate with the candidate's experience, skills, and qualifications.
The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.
Our health and welfare benefits are designed to support you and your priorities. Offerings include:
Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.
10/01/2026 - Until Filled
Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.
Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.

Amentum is a global leader in advanced engineering and innovative technology solutions, trusted by the United States and its allies to address their most significant and complex challenges in science, security and sustainability. Our people apply undaunted curiosity, relentless ambition and boundless imagination to challenge convention and drive progress. Our commitments are underpinned by the belief that safety, collaboration and well-being are integral to success. Headquartered in Chantilly, Virginia, we have approximately 50,000 employees in more than 70 countries across all 7 continents.