Network Engineer

General information

Requisition #

R68112

Locations

USA-VA-Chantilly

Posting Date

06/01/2026

Security Clearance Required

Interim Secret

Remote Type

Onsite

Time Type

Full time

Description & Requirements

Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we've been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now-unleash your potential with MANTECH!

MANTECH is seeking a motivated, career and customer-oriented Network Engineer to join our team based out of Chantilly, VA. This is an onsite position.

The Network Engineer must exhibit good judgment in interfacing with all government and contract personnel, providing proper examples of work performance, and adherence to professional standards and operational and security guidelines as defined by the Government and MANTECH.

Responsibilities include, but are not limited to:

• Provide hands-on experience and expertise in the installation and management of public and/or private networks such as Internet protocol (IP) networks, wide area networks (WANs), switches, routers (Cisco), and troubleshooting servers and networks to provide maximum performance; provide guidance to the Network/Server Lead, provide weekly and monthly performance reports, as well as daily reporting to the customer on all critical issues and their resolutions.
• Evaluates and reports on new communications technologies to enhance network capabilities, expertise to identify innovative solutions to most complex situations; analyze and develop new hardware requirements and prepare specifications for hardware.
• Direct and lead preparation of engineering plans and site installation Technical Design Packages; develop infrastructure installation schedules.
• Provide technical expertise and guidance to team members and business partners, troubleshoot complex issues; assist design of network installation configuration for new sites, support decommissioning of a site, and assist in moves, support computer systems and peripherals.
• Coordinate with internal and external teams for procurement, installation, and management of network related inventory (switches, routers, servers, storage solutions, etc.); travel to customer sites and perform deployment activities to include, site surveys, install hardware, install software, remove hardware, check hardware for shipment that connect to network; organize and direct hardware installations and support site surveys.
• Conduct training sessions to ensure all team members are cross trained in supported technology, provide Tier III network technical issue resolution, to include infrastructure-related problems and proper use of hardware; direct and lead preparation of drawings documenting network configuration changes at each site.
• May lead functional teams or projects that requires depth and/or breadth of expertise, and all other tasks as assigned by the Network/Server Lead, excellent written and verbal communication skills; prepare drawings documenting configuration changes at each site; prepare site installation and trip reports; respond to requests and document actions taken in a ticketing system.

Minimum Qualifications:

• 5+ years of experience in Information Technology, focus on network, Cisco routers and switch configurations, LAN/WAN Management; High School Diploma or equivalent.
• Hands-on experience and expertise in the installation and management of public and/or private networks such as Internet protocol (IP) networks, wide area networks (WANs), switches, routers (Cisco), and troubleshooting servers and networks to provide maximum performance.
• Clear and effective communication both verbally and non-verbally to deliver updates; briefings; or interface with co-workers; leadership as well as customer.
• Demonstrated initiative, sound judgment, effective decision-making to include experience in Customer Service.
• Proficiency with Microsoft 365 Productivity applications.
• Must be able to travel up to 25% CONUS and/or OCONUS.

Preferred Qualifications:

• Technical certifications in networking (e.g. CCNA, CCST, CCNP) preferred.
• Associate or bachelor's degree highly preferred.
• Prior experience supporting network and server installation, integration, and support in the Federal government enterprise environment.
• Experience contributing as part of an Agile team.
• Current active Secret clearance strongly preferred

Security Clearance Requirements:

• Must be a U.S. Citizen and be able to obtain an Interim Secret clearance prior to starting this position and maintain a Secret clearance thereafter.

Physical Requirements:

• Must be able to physically lift equipment weight up to 50 lbs.
• Must be able to perform installation work in constrained spaces like under work desks, in small cubicles, and counter window environments.
• Must be able to remain in stationary position for up to 50% of the time.
• Must be able to deliver clear and effective communication both verbally and non-verbally to deliver updates; briefings; or interface with co-workers; leadership as well as customer.
• Must be able to work in an office environment and be able to freely move within this space to utilize office equipment as well as interface with co-workers and customers.
• Must be able to effectively use IT peripherals such as laptop, desktop, printer, fax machine, etc.
• Must be able to deliver presentations as needed.
• Must be able to review; decipher and understand program manuals; software/hardware manuals; training manuals; etc.

MANTECH 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.