<p>General information</p> <p>Requisition #</p> <p>R66862</p> <p>Locations</p> <p>USA-DC-Washington</p> <p>Posting Date</p> <p>03/30/2026</p> <p>Security Clearance Required</p> <p>Top Secret</p> <p>Remote Type</p> <p>Onsite</p> <p>Time Type</p> <p>Full time</p> <p>Description & Requirements</p> <p>Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we've been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now-protect and innovate with MANTECH!</p> <p>MANTECH seeks a motivated, career and customer-oriented Senior Cybersecurity Systems Engineer to join our team in the Washington, D.C Navy Yard. This will be an onsite position.</p> <p>This role supports mission-critical systems and infrastructure, combining software and hardware knowledge to innovate and optimize performance. You will work alongside interdisciplinary teams to support engineering solutions that serve our national security objectives.</p> <p>Responsibilities include but are not limited to:</p> <ul> <li> <p>Review testing and validation to ensure system functionality and compliance with security standards</p> </li><li> <p>Developing technical documentation including schematics, specifications, and system architecture diagrams</p> </li><li> <p>Participating in engineering reviews, audits, and program milestone meetings</p> </li><li> <p>Staying up to date with emerging technologies and industry trends</p> </li><li> <p>Assist PARMs in getting ATO for aircraft carriers systems</p> </li><li> <p>Work with SEA 03 concerning Cybersecurity of Aircraft Carrier systems</p> </li><li> <p>Provide technical support in system engineering design, network architecture and system security development to support platform-based network integration, information technology and communications for cybersecurity in accordance with NIST Framework, JCIDS System Survivability, DoD 8500 series, DoD Cybersecurity Test & Evaluation (T&E), Cyber Threat Intelligence, Navy Cybersafe, Navy Information Assurance /Technical Authority Board standards and NAVSEA Enclave policy</p> </li><li> <p>Support efforts in cybersecurity for the definition of system security requirements, risk assessments, systems analysis, systems design, cybersecurity T&E, assessment and authorization</p> </li><li> <p>Provide cybersecurity Risk Management Framework (RMF) support</p> </li><li> <p>Serve as a subject matter expert in the validation of the implementation of cybersecurity requirements for device, sub-system, system, enclave and platform</p> </li><li> <p>Recommend systems hardening solutions to increase operational survivability and resilience to operational risk to the mission for device, sub-system, system, enclave and platform</p> </li><li> <p>Provide engineering recommendations and support the integration of T&E into the identification and development of device, sub-system, system, enclave and platform level cybersecurity specification and requirements for implementation into the ship design.</p> </li><li> <p>Support the phasing and fielding of cybersecurity for existing systems to future needs and trends through planned integration of the necessary cyber related architectural features and tools to protect the confidentiality, integrity and availability of the systems, networks platform mission and operation</p> </li></ul> <p>Minimum Qualifications:</p> <ul> <li> <p>Bachelor's degree in Computer Science, Cybersecurity, Network Security, Information Technology, Electrical Engineering, or Mathematics with concentration in Computer Science.</p> </li><li> <p>15+ years of professional experience in computer design, software development or computer network security</p> </li><li> <p>Experience in Cybersecurity/Cyber Defense Engineering and management</p> </li><li> <p>Experience supporting U.S. Navy programs or operations</p> </li></ul> <p>Preferred Qualifications:</p> <ul> <li> <p>Masters degree in Computer Science, Cybersecurity, or Computer Engineering</p> </li><li> <p>Possess either Certified Information Systems Security Professional (CISSP), Certified Information Security Manager (CISM), or Cisco Certified Internetwork Expert (CCIE) certification</p> </li><li> <p>Meet qualifications for Navy Cyber Workforce (CWF) Program: 801) Program Manager (Basic) or (803) Product Support Manager (Basic)</p> </li></ul> <p>Clearance Requirements:</p> <ul> <li>Must be a U.S. citizen and possess an active or current Top Secret clearance. </li></ul> <p>Physical Requirements:</p> <ul> <li> <p>Must be able to remain in a stationary position 50%</p> </li><li> <p>Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.</p> </li><li> <p>Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations</p> </li></ul> <p>The projected compensation range for this position is $141,500.00-$236,000.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.</p> <p>MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.</p> <p>If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.</p>