LAN Systems Integration and Testing Technician

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MANTECH seeks a motived, career and customer-oriented LAN System Integrion & Testing Technician LANSIT to join our team in Herndon, VA. In this role, you will provide reliable, high-quality LAN systems integrion and network support by installing, configuring, monitoring, and troubleshooting enterprise network infrastructure, ensuring secure, efficient, and uninterrupted operions while delivering responsive technical support to customers and collaboring effectively with cross-functional teams.

Responsibilities include, but are not limited to:

• Troubleshoot, install, configure, and maintain Cisco routers, switches, firewalls, and reled network hardware.
• Provide technical expertise in managing public and/or prive networks, including testing and analysis of network control software, servers, and transmission facilities.
• Install, support, and maintain LAN/WAN environments; evalue and recommend network hardware and software upgrades.
• Perform technical analyses of software, hardware, and network performance using diagnostic and monitoring tools to ensure efficient operions.
• Monitor da traffic and control network resources to maintain high-quality, reliable network performance.
• Diagnose and resolve complex network, system, and PC hardware/software issues while exercising sound judgment and supporting customer, operional, and project activities across teams.
• Local travel may be required between customer buildings or temporary assignment to an alterne locion in support of special projects.
• Member of a team comprised of a variety of skills th provide coverage from 6:00 a.m. – 6:00 p.m.; may need to work extended hours during critical peaks and be available to meet last minute requests.

Basic Qualificions:

• High School Diploma with 11+ years of experience, Associes Degree with 9+ years of experience, or a Bachelor’s Degree with 7+ years of experience.
• Demonstred hands-on experience troubleshooting, installing, configuring, and maintaining enterprise network equipment (Cisco routers, switches, firewalls).
• Experience supporting LAN/WAN environments, including network monitoring, diagnostics, and performance optimizion.
• Ability to independently diagnose and resolve complex network, hardware, and software issues in a fast-paced operional environment.
• Able to work independently with limited supervision while managing, prioritizing, and executing multiple concurrent projects, and effectively diagnosing and resolving network issues in a fast-paced environment.
• Proven ability to build and maintain constructive relionships among customers, stakeholders, technical teams, and contractors across the customer base.

Preferred Qualificions:

• Microsoft Certified Professional (MCP), Cisco certificions (CCNA, CCNP, or higher), or other relevant industry-recognized IT certificions (e.g., CompTIA Network+, Security+).
• Effective written and verbal communicion skills, with experience supporting customers and collaboring across technical teams
• Demonstred problem solving skills and ability to provide solutions and work with customer in providing resolution.
• Self-starter and work with a clear and defined mission.

Security Clearance Requirements:

• Current/active TS/SCI with Polygraph.

Physical Requirements:

• Ability to remain stionary for least 50% of the time.
• Ability to opere computers, phones, and standard office equipment for extended periods.
• Ability to move between offices and buildings, including under desks, raised floors, and server closets, some of which may be confined spaces.
• Ability to lift and move IT or AV equipment weighing 50+ pounds, using carts or team lifts as needed.
• Must be able to ascend/descend ladders (10+ feet) while pulling cables and adjusting equipment.

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