Network Engineer

ManTech • Linthicum Heights, MD • 2h ago

MANTECH seeks a skilled and security-focused Network Engineer to support the Cryptographic Solutions Program within the National Security Systems domain in Linthicum Heights, MD .

This opportunity allows you to directly contribute to national defense by securing critical communication infrastructures used by the Department of Defense and Intelligence Community. In this role, you will help design, implement, and safeguard cryptographic networks that ensure data protection, compliance, and mission assurance across highly sensitive environments.

Responsibilities include, but are not limited to:

Implement encryption protocols (e.g., SSL/TLS, IPsec) to safeguard data in transit

Configure and secure firewalls, routers, and switches within classified environments

Monitor network performance and identify anomalies using advanced diagnostic tools

Troubleshoot cryptographic implementations and resolve connectivity issues

Maintain and update cryptographic systems to address known vulnerabilities

Conduct technical risk assessments to evaluate network infrastructure threats

Analyze existing cryptographic methods and recommend enhancements or alternatives

Collaborate with cybersecurity professionals to meet compliance and certification requirements

Develop and maintain comprehensive documentation of network architecture, policies, and procedures

Minimum Qualifications:

Bachelor's degree in Network Engineering, Systems Engineering, Information Technology, or related field and 3 years of relevant experience; OR Master's degree in a related field and 1 year of relevant experience; OR 8 years of relevant experience may be substituted for degree

Proficiency in securing and troubleshooting core network protocols and components

Experience with Nessus, and system administration across Linux/Windows environments

Understanding of network security principles including segmentation and monitoring

CompTIA Security+ certification or equivalent industry credential

Preferred Qualifications:

Background in cryptographic engineering or cybersecurity analysis

Familiarity with certification and accreditation processes for secure systems

Experience supporting DoD or Intelligence Community infrastructure programs

Clearance Requirements:

Must possess a current and active TS/SCI with Polygraph

Physical Requirements:

Must be able to remain in a stationary position 50% of the time

Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and/or virtual communication, which may involve delivering presentations

MANTECH International Corporation 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.

ManTech

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