Job Description:

This position requires office presence of a minimum of 5 days per week and is only located at customer's site. Work will be performed at Quantico, VA.

AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government.   We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers’ mission.

AT&T will deliver comprehensive network support services to the Marine Corps Recruiting Command (MCRC), delivering reliable, secure and mission-ready IT capabilities for over 6,000 users across the globe. These services will enable MCRC to sustain daily recruiting operations worldwide, while aligning with DoD, DoN, and USMC standards to enhance efficiency, readiness, and resilience.

AT&T has an opening for an INS Lead to oversee and maintain a globally distributed network infrastructure. This role ensures high availability, reliability, and security of the Recruiting Command Enterprise Network (RCEN) across more than 1,500 sites. The INS Lead will manage wired/wireless networks, firewalls, VPNs, cloud connectivity, and telephony/VoIP services, while collaborating with cybersecurity teams and DoD/commercial partners.

Job Duties/Responsibilities:

• Lead the operation, maintenance, upgrade, and monitoring of RCEN network infrastructure.
• Configure, operate, and maintain LAN/WAN, VPNs, and remote site connectivity.
• Implement and manage network security, Zero Trust architecture, and NAC/C2C solutions (e.g., Forescout, Cisco ISE, Aruba ClearPass).
• Monitor network performance, forecast capacity, and provide reports.
• Manage cloud-based networking resources (Azure, AWS) and ensure secure connectivity.
• Maintain E911 services, VoIP/telephony infrastructure, and QoS optimization.
• Coordinate with MCRC, DoD, MARFORCYBER, DISA, and commercial providers.
• Maintain SOPs, network documentation, and asset inventories.

Required Clearance:

Secret (#secret)

Required Qualifications:

Bachelor’s degree in Computer Science, IT, or related field preferred and 5+ years of network operations/engineering experience with enterprise-scale networks.

• Hands-on experience with Cisco, Aruba, Fortinet, F5 BIG-IP, firewalls, VPNs, and monitoring tools (SolarWinds, Aruba AirWave).
• Strong knowledge of routing, switching, LAN/WAN, IPv4/IPv6, and security best practices.
• Experience supporting remote sites, MPLS/WAN, cloud networks, and VoIP systems.
• Ability to document, analyze, and optimize network performance.
• Strong collaboration skills across multiple teams and vendors.

Must have one or more of the following:

• Comptia Security+, CND, CEH, Cloud+, GCIH, GICSP, GSEC, SSCP, Security X/CASP+, CCNA, CCNP Security, CCSP, GCED, GCIA, GCLD, GDSA, GFACT

Weekly Hours:

40

Time Type:

Regular

Location:

Lorton, Virginia

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.