Cyber Security Engineer

SES Space & Defense

Cyber Security Engineer supporting program cybersecurity initiatives for government and satellite communications. Collaborating with teams to ensure system compliance, security, and resilience.

Posted 6/27/2026full-timeRemote • Virginia • 🇺🇸 United StatesJuniorMid-LevelWebsite

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Hard Skills

Information AssuranceCybersecurity SystemsVulnerability ManagementSystems AuditingInformation SystemsSecurity Test and EvaluationVulnerability ScanningCybersecurity Maturity Model Certification (CMMC)NIST 800-171System Certification and Authorization

Soft Skills

communication skillsability to work independentlyability to work in cross-functional teamsability to brief senior leadersinterpersonal skills

Tools & Technologies

Tenable NessusSCTMSCAPeMASS

Certifications & Qualifications

Bachelor’s degree in Computer Science or related fieldDoD Secret security clearance

Industry Keywords

cybersecuritymilitary satellite communicationscomplianceregulatory requirementsprogram lifecycle

Tech Stack

Tools & technologies

Cyber Security

About the role

Key responsibilities & impact

The Cyber Security Engineer will serve as a key member of SES Space & Defense's growing Cyber Organization, supporting program cybersecurity initiatives across mission-critical government and satellite communications environments.
This role is responsible for helping ensure systems remain compliant, resilient, and ready to meet evolving customer and regulatory requirements throughout the program lifecycle.
The successful candidate will provide hands-on support across cybersecurity engineering, vulnerability management, continuous monitoring, and certification activities while partnering closely with program managers, systems engineers, and operational teams.
Acting as a trusted technical resource, this individual will help integrate security into system design, implementation, and sustainment efforts from the earliest stages of development.
Ensure system compliance within the Cybersecurity Maturity Model Certification (CMMC) framework and associated policies, procedures, and guidelines.
Provide hands-on cybersecurity support, guidance, and quality assurance for projects, programs, and team members.
Serve as a Subject Matter Expert (SME) on system certification and authorization activities.
Review customer-required security plans, including CONOPS, OPSEC documentation, standard practices, and operating procedures.
Interface with Program Management to ensure compliance with established security plans and customer directives.
Review, prepare, and maintain CMMC packages in accordance with NIST 800-171 and customer requirements.

Requirements

What you’ll need

Bachelor’s degree in Computer Science or a related technical discipline
2–4 years of experience in Information Assurance, Cybersecurity Systems, Vulnerability Management, Systems Auditing, Information Systems, Engineering Management, or Security Test and Evaluation
U.S. Citizenship with the ability to obtain and maintain a DoD Secret security clearance
Experience conducting Information System vulnerability scanning
Experience serving as an Information Systems Security Officer (ISSO)
Ability to work effectively in dynamic environments with DoD, military, civilian, and industry stakeholders
Ability to work independently and within cross-functional teams
Strong written and verbal communication skills, including the ability to brief senior leaders and executive staff
Active DoD security clearance at the Secret level or higher preferred
Familiarity with Tenable Nessus, SCTM, SCAP, and eMASS preferred
Military satellite communications experience preferred

Benefits

Comp & perks

Health insurance
Retirement plans
Paid time off
Flexible work arrangements
Professional development