Network Security Engineer Senior

# Network Security Engineer SeniorGDIT  
· gdit.com Category:
Network Security

Location:

USA VA Ashburn Level:
Senior Salary:
$124,093 – $167,325

Clearance:
Public Trust## Quality of life

What the posting states. Hover or tap a perk to see the line it came from.
* Retirement match
* Paid parental leave

Type of

Requisition :

Regular Clearance Level Must Currently Possess:

None Clearance Level Must Be Able to Obtain:

None Public Trust/Other

Required:

BI Full 6C (T4)
Job Family:

Cyber and IT Risk Management

Job Qualifications:

Skills:

Cybersecurity, Cybersecurity Operations, IT Network Security, Network Security Tools

Certifications:

None

Experience:

8 + years of related experience US Citizenship

Required:

Yes

Job Description:

The U.S. Customs and Border Protection (CBP) Cyber Security Directorate (CSD) is leading one of the most comprehensive, mission critical cybersecurity operations in the federal government, protecting the digital infrastructure that safeguards America’s borders. This multifaceted program spans 24/7/365 Security Operations Center (SOC) monitoring, advanced threat intelligence, forensics, incident response, cloud and network security engineering, zero trust modernization, vulnerability assessment, and enterprise-wide risk and compliance activities.

The Network Security Engineer Senior will support teams at the forefront of national security, supporting sophisticated cyber operations that defend vital systems, enable secure mission execution, and counter rapidly evolving threats. You will find this work uniquely impactful, fast-paced, and deeply collaborative, offering the opportunity to lead high performing technical teams, shape CBP’s cybersecurity strategy, and contribute directly to the protection of the nation.

MEANINGFUL WORK AND PERSONAL IMPACTThe Network Security Engineer Senior plays a critical role in supporting the implementation, monitoring, and maintenance of security technologies across enterprise networks. This role helps strengthen the organization’s cybersecurity posture by ensuring network devices, configurations, and traffic flows align with modern security standards and federal requirements. Working within a fast‐paced cybersecurity mission environment, the engineer contributes to safeguarding critical systems that underpin national‐level operations.

As a Network Security Engineer Senior, you will:

Lead the design, engineering, and lifecycle management of enterprise network security infrastructure including firewalls, intrusion detection and prevention systems (IDS/IPS), VPN solutions, and network access control technologies.

Provide expert analysis of network security architectures, identify vulnerabilities, and develop mitigation strategies that align with federal and organizational security requirements.

Monitor and interpret complex network security events, guide investigations of advanced threats, and direct response and containment activities as needed.

Recommend and implement security enhancements to improve resilience, reduce attack surface, and support continuous modernization of the network security environment.

Develop, review, and enforce network security policies, standards, and procedures to meet compliance obligations under frameworks such as NIST, CIS, and other regulatory requirements.

Serve as a technical advisor to leadership and cross‐functional teams, ensuring secure design principles are embedded into program initiatives, system upgrades, and enterprise architecture decisions.

Provide mentorship, technical guidance, and quality oversight to junior and mid-level engineers to promote professional growth and ensure consistent engineering excellence.

Develop, document, and maintain network security policies, procedures, and standards.

Ensure compliance with applicable…