AI summary
Network Engineer role at MANTECH in Laurel, MD, supporting enterprise network infrastructure for a global workforce across national defense missions. You’ll design, deploy, troubleshoot, and document secure LAN/WAN and cross-domain network solutions in a complex Cisco environment. Standout requirement: active Top Secret/SCI with Polygraph.
Key skills
Cisco networking (Nexus, Catalyst, ISR, ASR)MPLS/VPLS routingOSPF and EIGRPVPN/IPsec and PKI-enabled networksQoS (traffic shaping and policing)VLANs, trunking, inter-VLAN routingLAN/WAN design, installation and troubleshootingNetwork diagrams and schematics documentationTaclane 175 encryption devicesTop Secret/SCI with Polygraph
Salary not listed — comparable Laurel, MD cleared Network Engineer roles at this seniority (12+ years, TS/SCI Poly) often pay roughly $150k–$220k base.
You'll thrive here if you enjoy owning secure, complex Cisco-based networks for defense missions and can work on-site with an active TS/SCI Poly.
Why apply
- Support national defense missions
- Enterprise infrastructure for global workforce
- Work with cross-domain solutions
MANTECH seeks a motivated, career and customer-oriented Network Engineer to join our team in Laurel, MD. You will be part of a dedicated team delivering enterprise infrastructure capabilities for a global workforce that supports a wide range of national defense missions.
Responsibilities include but are not limited to:
- Responsible for supporting customer networks involving cross-domain solutions, including VPNs, one-way data transfers, unclassified mission related infrastructures, and Taclane 175 encryption devices. Specific configurations include routing using MPLS/VPLS, OSPF, EIGRP at the Core and Distribution devices and switching at the Access devices.
- Responsible for performing planning, deployment and quality assurance functions for system and network upgrade projects.
- Will develop high, mid and lower-level diagrams and schematics to document the system and network infrastructure for planning, historical and continuity purposes.
- Responsible for designing, installing, configuring, troubleshooting and maintaining a LAN/WAN equipment required to provide telecommunications services in a complex environment consisting of various Cisco network equipment to include Nexus and Catalyst model as well as Integrated Service Routers.
- Responsible for designing networks utilizing switching technology to include VLAN, Inter-VLAN routing, trunking, and port aggregation on the WAN/LAN environment.
Minimum Qualifications:
- Bachelor’s degree with (12) years of relevant experience with technical discipline from an accredited college or university.
- Associates degree with (15) years of relevant experience or high school diploma with (20) years of relevant experience
- Significant experience provisioning and sustaining network infrastructures and have experience developing, operating, and managing networks required to operate in a secure PKI, IPSEC, or VPN enabled environment
- Significant experience with CISCO network equipment, i.e. 9300, 3850, 4900, ASR-2130, etc.
- Cisco Certified Network Associate (CCNA) certified at the Professional level in Network Security (CCSP), Network Design (CCDP), and/or Routing & Switching (CCNP)
- Able to understand routing protocols, QOS, be able to implement traffic shaping and policing on the network, and understand IPSEC tunneling
- Crypto experience
Preferred Qualifications:
- Leads medium to large complex projects and major phases of very large projects.
- Provides highly technical and specialized guidance and solutions to complex IT problems.
- At least three years of direct experience with and intelligence community.
Clearance Requirements:
- Must have a current/active Top Secret/SCI with Polygraph
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 collaborate with other leaders/teams, use standard office automation equipment, and virtual communication.