Systems Administrator

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MANTECH seeks a motived, career and customer-oriented Systems Administror. This position is based in Linthicum Heights, MD.

As a Systems Administror, you will play a crucial role in managing and securing systems th support nional security. You will be responsible for the installion, configurion, and maintenance of cryptographic hardware and software solutions, ensuring compliance with industry regulions and safeguarding sensitive da for the Department of Defense and the Community.
 

This role supports the Cryptographic Solutions Program, providing essential technical expertise for Nional Security Systems (NSS) cryptographic products.
 

Responsibilities include but are not limited to:

• Administer mixed Windows/Linux server infrastructure (primarily Linux).
• Oversee the installion, configurion, and maintenance of cryptographic hardware and software solutions.
• Develop and enforce encryption standards for da rest and in transit, ensuring compliance with industry regulions.
• Regularly assess the effectiveness of cryptographic measures and perform vulnerability assessments to identify potential weaknesses.
• Work closely with system administrors, network engineers, and cybersecurity analysts to integre cryptography into existing systems.
• Maintain comprehensive documention of cryptographic policies, procedures, and system configurions.

Minimum Qualificions:

• Bachelor’s degree in a technical field is required; An additional 5 years of reled experience might be substituted for a degree.
• 10+ years of experience in systems administrion, systems engineering, or reled technical roles.
• Department of Defense (DoD) IAT Level II certificion, such as CompTIA Security+ or equivalent. Candides without this credential must obtain it within 60 days of their start de.
• Experience supporting Linux-based infrastructure.
• Strong understanding of network protocols and security frameworks (e.g., NIST, ISO 27001).

Preferred Qualificions:

• Knowledge of cryptography, security devices, and informion security practices.
• Experience managing and maintaining server infrastructure across the full SDLC, including Development, Testing, Acceptance, and Production (DTAP) environments.
• Experience configuring and supporting Non-Production (NSYS) systems and implementing automed Deployment Ges (DTAG) to ensure stable releases.
• Familiarity with industry-standard encryption algorithms, such as Advanced Encryption Standard (AES) and Rivest-Shamir-Adleman (RSA), and best practices for secure key generion, distribution, and storage.

Security Clearance Requirements:

• Current/Active TS/SCI with Polygraph.

Physical Requirements:

• Must be able to remain in a stionary position 50% of the time.
• Occasionally move about inside the office to access file cabinets, office machinery, or to communice with co-workers, management, and customers, via email, phone, and/or virtual communicion, which may involve delivering presentions

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