Are you passionate about human space exploration, understanding the origins of the universe, and working with a passionate and diverse team to make a difference? If you are, we need you! We need your talent, teamwork, and energy to help us achieve great things that inspire people all over the globe. We need you to bring creative ideas and diverse backgrounds to help us envision, shape, and deliver systems that will enable the exploration of space while benefiting people here on Earth. We are excited about what we do, and we need you on our team as we take on exciting challenges for NASA’s pursuits in deep space exploration. As NASA’s largest engineering solutions provider working together with NASA at centers across the United States. We have an exciting opportunity for a Cybersecurity Space Systems Engineer to join the JETSII Contract! This role is a unique blend of space engineering and cybersecurity. Instead of focusing solely on how a spacecraft works, this position focuses on how to keep it safe from deliberate cyber threats. You will help protect the full range of NASA mission systems: from the spacecraft and its onboard computers to the communication links that send commands to the ground systems that support missions. A cyber-attack on a NASA spacecraft isn’t just a technical problem. It can threaten astronaut safety and put extremely valuable scientific missions at risk. In this role, you will help design systems that can detect unusual behavior, isolate issues, and recover on their own while in space. You will help plan, build, and test cybersecurity features that ensure NASA’s missions remain safe, reliable, and resilient, even under challenging conditions. The Cybersecurity Space Systems Engineer will: Conduct threat modeling across the spacecraft, communication links, and ground systems using space focused security tools (e.g., SPARTA) and methods. Design secure ways for a spacecraft’s internal systems to communicate (cryptographic key management framework) without slowing down critical operations. Review outside software and code before it is compiled into the flight software ensuring nothing harmful is introduced. Develop lightweight monitoring tools that monitor for unexpected behavior in telemetry, commands, or onboard systems. Build automated safety responses so the spacecraft can quickly isolate a threat and protect essential systems even without real time support from Earth. Lead cross-functional teams through practice or real cybersecurity events, helping coordinate actions between ground stations, network engineering teams, and flight operations to securely patch or override flight software. Evaluate engineering designs evaluate designs, interface control documents (ICDs), and flight software architectures to ensure adherence to rigorous cyber-resiliency baselines. Translate cybersecurity goals into traditional space system engineering deliverables. Perform engineering trade studies to find the right balance between strong cybersecurity postures (e.g., cryptographic overhead, zero-trust auditing) against the limited power, computing, and communication resources available in space. Perform other duties as assigned. Requisition Qualifications: This position has been posted at multiple levels. Depending on the candidate's experience, requirements, and business needs, we reserve the right to consider candidates at any level for which this position has been advertised. Typically requires a bachelor's degree in Engineering and a minimum of 2- 5 years of experience in the field or in a related area. Bachelor’s degree in an engineering or STEM field such as Aerospace, Space Systems, Computer, Software, or Electrical Engineering. Experience participating in or reviewing major design milestones (e.g., SRR, PDR, CDR). Understanding of the systems engineering lifecycle, including writing verifiable requirements, managing verification matrices (V&V via test, analysis, inspection, demonstration), and configuration management. Ability to obtain and maintain a TS/SCI security clearance. Experience weighing cybersecurity needs against spacecraft constraints (e.g., CPU limitations, thermal footprints, limited power budgets, and low-telemetry bandwidth). Experience working across disciplines and explaining cyber risks to engineers and mission leaders who may not specialize in cybersecurity. Requisition Preferences: 5–8 years of growing experience in space systems engineering. Master’s degree in Space Systems Engineering with work focused on Cybersecurity Embedded Systems Security, or Autonomous System Resiliency. Strong understanding of real time operating systems (like VxWorks, RTEMS, or NASA Core Flight System) and lower level programming used in spacecraft software (C/C++). Experience applying defensive cybersecurity concepts directly to aerospace systems. Experience working with intrusion detection systems (IDS), SIEM, packet capture analytics, and telemetry log analysis scaled down for resource-constrained environments. Knowledge of how to protect onboard artificial intelligence Compensation: Salary starts at $83,700. Final pay will be commensurate with the candidate's experience, skills, and qualifications. Why Join Our Team? In addition to exciting career opportunities, we also ave: Excellent personal and professional career growth 9/80 work schedule (every other Friday off), when applicable Onsite cafeteria (breakfast & lunch) Much, much more! For more information on our partnership with NASA at Johnson Space Center (JSC), please visit www.wehavespaceforyou.com Proof of U.S. Citizenship or US Permanent Residency may be a requirement for this position. Must be able to complete a U.S. government background investigation. Management has the prerogative to select at any level for which the position is advertised. Essential Functions Work Environment Generally, an office environment, but can involve inside or outside work depending on task. Physical Requirements Work may involve sitting or standing for extended periods (90% of time). May require lifting and carrying up to 25 lbs. (5% of time). Equipment and Machines Standard office equipment (PC, telephone, printer, etc.). Attendance Regular attendance in accordance with established work schedule is critical. Ability to work outside normal schedule and adjust schedule to meet peak periods and surge requirements. Other Essential Functions Professional behavior that enhances productivity and promotes teamwork and cooperation. Grooming and dress must be appropriate for the position and must not impose a safety risk/hazard to the employee or others. #JETS #JETSII Compensation Details: EN2 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. Benefits Overview: Our health and welfare benefits are designed to support you and your priorities. Offerings include: Health, dental, and vision insurance Paid time off and holidays Retirement benefits (including 401(k) matching) Educational reimbursement Parental leave Employee stock purchase plan Tax-saving options Disability and life insurance Pet insurance 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. Original Posting: 10/22/2026 - 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. Welcome back! We encourage you to check on the status of your current job applications with us. You can also search for a list of our current job openings and see if there are any new positions that might be a good fit for you. Thank you for continued interest in employment with Amentum. For more than 100 years, Amentum has tackled the world’s toughest challenges to deliver agile and steadfast solutions to the U.S. government and its allies. With more than 50,000 employees on all seven continents and in more than 60 countries, Amentum delivers a broad range of operational support services to meet the critical needs of our clients. Our headquarters are in Chantilly, VA. Find us online at https://www.amentum.com/ If you need a reasonable accommodation for any part of the employment process, please complete our Accommodation Request. Requests for accommodation will be considered on a case-by-case basis. If you need assistance, please reach out to [email protected] EEO including Disability/Protected Veterans Labor Laws Posters Amentum has become aware of unauthorized individuals who are falsely using the Amentum name and /or logo in an attempt to solicit fees from potential job seekers. These deceptive and unauthorized individuals are soliciting money, promising placement in a position with Amentum. Please note any communication requesting any amount of money in exchange for employment with Amentum is fraudulent. These communications do not originate from Amentum and are not associated with the recruitment process. Amentum and its affiliates never charge candidates fees or payments of any kind in order to secure employment. As a precaution, we recommend you do not disclose personal or financial details to anyone as a response to an unsolicited email, social media, or dating website request. Amentum will never as ask for a placement fee or any other fee to expedite the hiring process. If you are contacted by anyone offering employment with Amentum, you should never be asked to pay a fee for recruiting. Amentum personnel will always send email from an identifiable corporate account (ending in @amentum.com) and never from a public email account like Yahoo!, Google, Gmail, or Hotmail. If you are contacted regarding a fraudulent employment proposal, we encourage you to alert your local law enforcement agency/police authority. To read more about Amentum’s commitment to ethics, please click here.

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