Senior Cybersecurity Engineer

Are you looking for a Challenge?

Looking for an innovative organization and the opportunity to learn and grow professionally? We can help! We are seeking a Senior Cybersecurity Engineer to provide Systems Engineering and Technical Assistance (SETA) Professional Support Services for the Department of Defense Cyber Crime Center (DC3) in Linthicum Heights, MD.

At Terrestris, we leverage technology to create better mission outcomes through better human performance. We form strong client and team relationships through transparency and strive to create an environment where our team can let their excellence shine through. By finding, developing, and incorporating new ideas, we provide memorable services. Rooted in the USMC values of honor, courage, and commitment, Terrestris seeks to deliver extraordinary value to the American people by helping the Government become more efficient and effective.

As the Senior Cybersecurity Engineer, you will provide expert technical guidance on securing systems, networks, and data against cyber threats. They act as a trusted advisor (SETA), helping plan, evaluate, and improve cybersecurity tools, architectures, and operations while ensuring solutions meet mission and compliance requirements. They also collaborate with government teams and contractors to strengthen defenses, investigate vulnerabilities, and support cyber crime analysis efforts.

• Provide engineering and technical enterprise services including feasibility studies, analysis of alternatives, and technical evaluations.
• Support system integration, sustainment, infrastructure lifecycle management, and reliability improvements.
• Perform root cause analysis, incident/problem management, and continuous system improvement.
• Support change management, release management, and configuration control processes.
• Provide architecture recommendations and modernization support across DoD cyber environments.
• Conduct studies, assessments, and evaluations of cyber technologies and capabilities.
• Support test engineering, Dev Ops/Agile processes, and system lifecycle testing.
• Perform cyber operations analysis and intelligence support using all-source data.
• Support R&D efforts, including test and evaluation and capability development.
• Provide technical and enterprise project management support (scheduling, risk, resources).

• Authorization to work in the United States permanently without sponsorship.
• Master’s degree in Computer Science, Cybersecurity, or related field + 10 years relevant experience.
• OR Bachelor’s degree in Computer Science, Cybersecurity, or related field + 18 years relevant experience.
• OR 22 years relevant experience.
• Active Top Secret/SCI clearance.
• CISSP or equivalent certification.
• 5+ years leading cybersecurity teams in DoD environment.
• Experience in incident response, vulnerability management, and threat analysis.
• Experience managing teams of 10+ personnel.
• Experience managing large‑scale projects ($10M+).

We offer outstanding benefits including health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, and work‑life programs. Our award programs acknowledge employees for exceptional performance and superior demonstration of our service standards. Full‑time and part‑time employees working at least 20 hours a week on a regular basis are eligible to participate in our benefit programs.

Other offerings may be provided for employees not within this category.

Terrestris is an Equal Opportunity Employer (EOE). Qualified applicants are considered for employment without regard to age, race, color, religion, sex, national origin, sexual orientation, disability, or veteran status. Applicants must be authorized to work in the U.S.