Cybersecurity Engineer

Amentum; Houston (TX); On-site; USD 100,000 - 140,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off and holidays

401(k) retirement benefits with match

Educational reimbursement

Parental leave

Employee stock purchase plan

Disability and life insurance

Pet insurance

Job summary

Amentum is seeking a Cybersecurity Engineer to join the JETSII contract supporting NASA exploration initiatives. You will conduct cyber threat modeling, risk-based assessments, and develop briefing materials for senior leaders on cybersecurity and operations across spacecraft and ground systems.

The role requires a bachelor’s degree or equivalent, 5+ years of experience, and eligibility for U.S. government Top Secret clearance.

Qualifications

• Bachelor’s degree or equivalent certification in a related area.

Responsibilities

• Conduct cyber threat modeling and identify critical trust boundaries.

Skills

Data flow diagrams

Risk assessment

Threat modeling

Communication to leadership

Cybersecurity concepts

Education

Bachelor’s degree or equivalent certification

Tools

MITRE ATT&CK

Aerospace SPARTA

D3FEND

SIEM

NIST SP 800-53

Kali Linux

Metasploit

Wireshark

CCSDS space communications

ARINC 664 Part 7

SAE AS6802

Job description

• CompTIA Security+ - Baseline DoD 8570/8140 IAT Level II

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 Engineer to join the JETSII Contract!

The Cybersecurity Engineer will:

• Conduct cyber threat modeling, identifying critical trust boundaries and correlating them to risk based on adversarial tactics and techniques.
• Perform gap analysis and risk-based assessment using NASA risk management plan to derive potential risks due to cyber threats and system vulnerabilities
• Develop briefing material regarding cybersecurity and cyber operations activities with an ability to articulate information at a senior leader level (SES civil servant)
• Collaborate across agency to engage system security efforts for both terrestrial and space-based assets, which includes the use of hybrid government-commercial industry technologies
• Be responsible for system design requirements from programmatic to technical level including verification and validation details
• Provide engineering analysis and technical consultation for the development, design, testing, and evaluation of spacecraft systems, software, hardware, and cybersecurity.
• Provide technical guidance, oversight, and resolution of issues related to Multiple-System Domains (Software and Networks) for NASA projects and programs.
• Perform cybersecurity impact assessments.
• Communicate effectively with internal and external customers.
• Coordinate with external organizations to perform cybersecurity remediation.
• Operate successfully in a fast paced cyber systems environment supporting rapid evaluation for Cybersecurity related Risks.
• Demonstrate strong customer focus, effective communication skills, and the ability to work in a dynamic, schedule - driven environment.
• 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 or equivalent certification in a related area and a minimum of 5 years of experience in the field or in a related area.
• Eligibility for U.S. Government Top Secret security clearance.
• Experience developing data flow diagrams
• Experience using MITRE ATT&CK, Aerospace SPARTA, D3FEND or similar frameworks for analyzing cyber tactics and techniques or similar threat analysis frameworks
• Experience developing cyber threat models for assessing systems
• Experience with risk management frameworks and assessing cyber risk
• Familiarity with anomaly detection and response systems like SIEM
• Experience presenting cyber operations/technologies briefs to non-technical and technical audiences
• Experience in Avionics Electrical or Software Systems design and development.
• Experience performing cybersecurity impact assessments and remediation.
• Familiarity with cybersecurity controls and requirements such as NIST SP 800 - 53: Recommended Security Controls for Federal Information Systems
• Experience with network design, network management tools, IT security, and network troubleshooting techniques.
• Familiarity with commercial products used in computer networking technology.
• Excellent communication, negotiation, and coordination skills, with a strong customer service mindset

Requisition Preferences

• Familiarity with AI/ML as it pertains to AI-security
• Experience with Kali Linux, Metasploit, Wireshark, and other similar security tools
• Familiarity with NPR 7150.2D and CLD-REQ-1130 especially as it relates to cybersecurity for software.
• Experience developing systems requirements including verification and validation details
• Familiarity with CCSDS for space communications
• Knowledge of NASA NPR 2810.1A: Security of Information Technology
• CompTIA Security+ - Baseline DoD 8570/8140 IAT Level II
• Thorough understanding of computer networking technologies, including IEEE 802.3 (Ethernet) standards.
• Experience with hardware and software integration.
• Experience in cybersecurity planning, auditing, and vulnerability scanning.
• Experience with avionics cybersecurity system maintenance (e.g., disabling services, implementing countermeasures, intrusion detection, firewall configuration).
• Experience with spacecraft avionics, networks and flight software analysis.
• Experience applying computer network technology in space systems.
• Familiarity with ARINC 664 Part 7 Aircraft Data Network
• Familiarity with SAE AS6802 Time - Triggered Ethernet Standard

Why Join Our Team?

In addition to exciting career opportunities, we also have:

• 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

IT2-IT4

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

06/08/2026 - 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.