waypointjobs

MANTECH

Network Security Engineer

chantilly, VA

Check who can apply and the requirements below before continuing.

About this opportunity

MANTECH lists this Network Security Engineer opportunity in chantilly, Virginia. Review the employer’s description below for duties, qualifications and application requirements.

Job description

MANTECH seeks a motivated, career and customer-oriented Network Security Engineer to join our team in Chantilly, VA. This is an onsite position.

Responsibilities include but are not limited to:

Perform Tier II and Tier III network security engineering support, while assisting in designing advanced WAN, LAN, and data center solutions.

Monitor and configure networks utilizing SolarWinds, Cisco Firepower FMC, and Cisco ISE to analyze complex network requirements and ensure complete, functioning infrastructure

Create, maintain, and interpret highly detailed technical network security diagrams, routing topology schemas, and robust hardware configuration baselines

Coordinate across large internal teams, stakeholders, and Sponsor authorities to drive infrastructure agendas and successfully navigate systems engineering processes

Participate in all phases of the ITIL Service Lifecycle, including submitting Change Requests and maintaining security event monitoring policies

Evaluate current network security architectures, inventory complex routing pathways, and recommend process improvements to optimize performance and throughput

Deliver end-to-end functional analysis, requirements specification, cost estimation, and engineering package releases for customer production IT environments

Minimum Qualifications:

High School Diploma or GED with 7+ years of progressively responsible experience in Network Security Engineering, Network Analysis, or a related technical discipline

Cisco Certified Network Associate (CCNA) certification, or equivalent routing/switching technical certification, ex., Juniper Networks Certified Associate – Junos (JNCIA-Junos)

DoD 8570 IAT Level II Certification, e.g., Security+

DoD 8570.1 / DoD (IAT III Level) certification required within 6 months of hire, e.g., SecurityX

Preferred Qualifications:

Bachelors degree in an engineering discipline

Experience using and administering SolarWinds alongside deep knowledge of Microsoft Windows Systems, HP SANs, and VMware products

Advanced experience managing VPNs, GRE tunnels, routing protocols (BGP E/I, OSPF), VLANs, VRFs, and configuring KGs

Strong familiarity with Cisco ACI, data center fabric best practices, Ansible, and Desired State Configuration (DSC)

Strong familiarity with Cisco Secure Firewall ( Firepower FMC)

Practical knowledge of BICSI standards, terminating fiber and Cat 5 cabling, as well as familiarity with NSTISSAM TEMPEST/2-95 and CNSSAM TEMPEST/01-13 guidelines

Clearance Requirements:

Must have a current and active TS/SCI clearance

Physical Requirements:

The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.

Worksite address

chantilly, VA, 20151, US

Who can apply

Review the original listing for work authorization, qualifications and employer requirements.

Ready for your next step?Apply on the official website
Apply on WhatJobs ↗

Explore related searches

Current related jobs

CalPortland

WhatJobs

Senior Electrical Engineer

jurupa valley, CA

$135k-$155k annually

Job Summary The Senior Electrical Engineer supports efforts throughout the company to optimize the operation, performance, and efficiency of …

Last received from source 2026-10-19View job

The Prolift Rigging Company

WhatJobs

Branch Engineer

manassas, VA

Salary not specified

ProLift Rigging is a privately owned, purpose-driven industrial construction company that has a unique, opportunistic, and growth-oriented cultur…

Last received from source 2026-10-19View job

The Prolift Rigging Company

WhatJobs

Branch Engineer

glendale, AZ

Salary not specified

ProLift Rigging is a privately owned, purpose-driven industrial construction company that has a unique, opportunistic, and growth-oriented cultur…

Last received from source 2026-10-19View job

CalPortland

WhatJobs

Project Engineer

federal way, WA

Salary $115,000 to $145,000

Job Summary The Project Engineer will manage engineering projects from conception, design, procurement, installation, project cost, and commi…

Last received from source 2026-10-19View job

CalPortland

WhatJobs

Project Engineer

phoenix, AZ

Salary not specified

Job Summary The Project Engineer will manage engineering projects from conception, design, procurement, installation, project cost, and commi…

Last received from source 2026-10-19View job

GXO Logistics

WhatJobs

Senior Industrial Engineer - 1st Shift

kansas city, MO

Salary not specified

Logistics at full potential.  At GXO, we’re constantly looking for talented individuals at all levels who can deliver the caliber of service…

Last received from source 2026-10-19View job