• Network Engineer

    ManTech (Linthicum Heights, MD)


    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, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

     

    If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at [email protected] and provide your name and contact information.