Cryptographic Systems Engineer

Description & Requirements

Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with MANTECH!

MANTECH seeks a motivated, career and customer-oriented Cryptographic Systems Engineer to join our team in Linthicum Heights, MD.

This role protects secure systems by providing expert engineering support for the Cryptographic Solutions Program and MPO's network security products.

Responsibilities include, but are not limited to:

• Provide technical direction for the development, engineering, interfacing, integration, and testing of complex hardware and software systems with embedded cryptographic capabilities.
• Support system development and implementation planning through the preparation and assessment of Systems Engineering Management Plans (SEMPs) and System Integration and Test Plans (SITPs).
• Support the planning, execution, and test analysis for Department of Defense (DoD) Risk Management Framework (RMF) and Assessment and Authorization (A&A) processes.
• Develop and maintain lightweight utility scripts (e.g., Python, Bash) to run automated test harnesses, collect logs, and support hardware-level integration with cryptographic devices.
• Derive and manage lower-level requirements from higher-level allocated requirements to ensure delivery of compatible, secure production systems.
• Contribute to systems engineering documentation, including Systems Engineering Plans (SEPs), Initial Capabilities Documents (ICDs), and Interface Control Documents (ICDs) across red/black and secure enclave boundaries.
• Coordinate action item resolution for Configuration Control Boards (CCBs), design reviews, program reviews, and test reviews requiring cross-discipline coordination.
• Establish baseline definitions for systems and components under development to align hardware, software, and COMSEC/cyber engineering teams.

Minimum Qualifications:

• Bachelor’s degree in a technical discipline plus 14 years of relevant systems engineering experience (or related cyber or software engineering fields). In lieu of a degree, a total of 19 years of relevant experience is required.

Preferred Qualifications:

• Hands-on experience with Network Security Protocols, particularly EAP-TLS, MACsec, and IPsec.
• Familiarity with cryptographic systems, COMSEC integration, Key Management Infrastructure (KMI), and secure network architectures.
• Working knowledge of basic scripting (preferably Python) for test harness automation, data/log parsing, and functional checks on cryptographic devices (full-lifecycle software engineering experience is not required).

Clearance Requirements:

• Active TS/SCI with Polygraph.

Physical Requirements:

• Must be able to remain in a stationary position 50% of the time.
• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
• Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

The projected compensation range for this position is $165,900.00-$295,300.00. 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.
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.

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.

General information

Requisition # R71747 Locations USA-MD-Linthicum Heights Posting Date 10/29/2026 Security Clearance Required TS/SCI w/ Poly Remote Type Onsite Time Type Full time