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CSfC Network Engineer

TEKsystems c/o Allegis Group

Posted today

Job Requirements

Suffolk, VA
Secret Polygraph not specified
Mid Level Career (5+ yrs experience)
$135,000 - $175,000

Job Description

Top Skills' Details
1. 5+ years of Experience Experience with Cisco, Juniper, Palo Alto, Aruba network equipment and Cisco ISE
2. Installation, configuration and support of Active Directory, domain controllers, DNS, DHCP, PKI integration, and VMware vSphere in classified environments
3. Utilizing performance and network monitoring, management and other tools to ensure security and optimal performance
4. Knowledge of Commercial Solutions for Classified Networks/Communications (CSfC)

Job Description
CSfC Sustainment Network Engineer **** Start date for this role is 11/1****
Location - Suffolk County. Will be supporting new installation.

Position Overview
The CSfC Sustainment Network Engineer will support the sustainment, maintenance, troubleshooting, and operational readiness of NSA-approved Commercial Solutions for Classified (CSfC) systems and networks in support of U.S. Navy operations. This role is part of a team of engineers delivering mission-critical systems and network support for classified communications environments. The position requires a hands-on technical professional capable of maintaining complex network infrastructures, supporting deployed systems, and ensuring compliance with Department of Defense (DoD) cybersecurity and configuration management requirements.

The successful candidate will possess strong technical expertise across networking, security, and systems administration disciplines, as well as excellent communication skills to effectively engage with both technical and non-technical government stakeholders.

Key Responsibilities
- Provide day-to-day sustainment, maintenance, troubleshooting, and optimization of NSA-approved CSfC environments.
- Support virtualized infrastructure and complex network architectures across multiple operating systems and platforms.
- Deploy, configure, test, and maintain network and security appliances in support of mission requirements.
- Install, configure, and support routers, switches, firewalls, VPN gateways, wireless infrastructure, and other network components.
- Perform configuration management activities and maintain overall operational readiness of network systems.
- Troubleshoot and resolve network, system, and security-related issues in classified and operational environments.
- Conduct technology assessments, engineering evaluations, and system performance analysis.
- Support implementation and maintenance of Public Key Infrastructure (PKI) solutions, including certificate generation, installation, and lifecycle management.
- Configure and troubleshoot IPsec communications and secure routing environments.
- Implement and manage firewall policies, Access Control Lists (ACLs), and network segmentation controls.
- Support Layer 3 and Layer 7 load balancing technologies.
- Implement and troubleshoot routing and switching protocols in enterprise environments.
- Configure and maintain 802.1X authentication and network access control solutions.
-Utilize network monitoring, management, and security tools to ensure operational performance and security compliance.
- Conduct vulnerability scanning activities using ACAS and support remediation efforts.
- Perform system and network hardening in accordance with DoD STIGs, SCAP compliance requirements, and cybersecurity best practices.
- Provide technical documentation, status reporting, and presentations to government customers and project stakeholders.-
- Participate in on-call support activities and respond to system incidents as required.

Preferred Qualifications
- Experience supporting NSA-approved Commercial Solutions for Classified (CSfC) networks/communications.
- Experience with the following technologies:
- Cisco Routing & Switching
- Cisco ISE
- Juniper Networks
- Palo Alto Networks
- Aruba Networks
- F5 Load Balancers
- Experience with Wi-Fi standards including 802.11ac and 802.11ax.
- Experience supporting U.S. Navy, Marine Corps, or broader DoD missions.
- Familiarity with virtualization technologies and enterprise systems administration.
- Active DoD 8570/8140 compliant certification (Security+, CISSP, CCNA, CCNP, or similar).

Additional Skills & Qualifications
• 8 + years of experience as a Network Engineer focused on Cisco and/or Juniper appliances/environments
• 2+ years working on MCEN and DOD environments
• Solid technical understanding of network architectures to include network appliances; security appliances; application services; virtual environments; network management tools; network protocols; network troubleshooting; and optimizing network performance
• Ability to use software, tools, and scripts to configure, monitor, troubleshoot and repair network equipment
• Proven expertise in troubleshooting network problems
• Good working experience with switching technologies and concepts

Employee Value Proposition (EVP)
Our client was just re-awarded this work for an additional 3 years starting in October of 2025. This is a long term opportunity to support the Marine Expeditionary Force and they are building out their Navy solution as they have Navy customers who want to have this solution in their environments.

Business Drivers/Customer Impact
On the CSfC program our client is providing solutions to the Marine corps with commercial cybersecurity strategy to quickly deliver secure cybersecurity solutions that leverage commercial technologies and products. Commercial Solutions for Classified (CSfC) is a series of capability packages designed by the National Security Agency (NSA) to provide the capability to access classified information without a Cyber security risks. The Marine Corp wants to have access to classified information while outside of secure spaces.

Why is the position open(provide details)
They are building out a new site and setting up a new solution at a NSA data Center.

External Communities Job Description
We are looking for a Network Engineer to join our team in Suffolk County VA. All candidates must have an active secret Clearance, Security +, and be at the level of CCNP.
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Company Benefits
Eligibility requirements apply to some benefits and may depend on your job
classification and length of employment. Benefits are subject to change and may be
subject to specific elections, plan, or program terms. If eligible, the benefits
available for this temporary role may include the following:

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)
group id: 10105424
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About Us
We’re partners in transformation. We help customers activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services and real-world application, we work with progressive leaders to drive change. That’s the power of true partnership. TEKsystems is an Allegis Group company.

TEKsystems c/o Allegis Group Jobs


Job Category
IT - Networking
Clearance Level
Secret