Network Engineer

Posted Yesterday
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2 Locations
In-Office
150K-170K Annually
Senior level
Artificial Intelligence • Cloud • Information Technology • Security • Software
The Role
Design, implement, secure, and maintain multi-domain data center and enterprise network infrastructures for classified/coalition environments. Administer routers, switches, firewalls, CDS, and cryptographic/COMSEC devices; implement routing (BGP, OSPF), VXLAN/EVPN, encrypted transport, VPNs, and monitoring. Support RMF/A&A, vulnerability management, testing, documentation, automation, and collaboration with cybersecurity and mission teams to ensure availability and compliance.
Summary Generated by Built In
Job Summary & Responsibilities

Everforth ECS is seeking a Network Engineer to work in a hybrid onsite/remote capacity in the Fort Meade, MD customer site and/or Fairfax, VA office, with occasional travel to Ashburn, VA.

 

Job Description:

Everforth ECS is seeking a Network Engineer to support multiple U.S. Coalition Mission Partner Environments (MPE) in an operational DoW environment. These environments host unique datasets, applications, and information systems that enable the development and deployment of Artificial Intelligence / Machine Learning (AI/ML) capabilities. The Network Engineer is responsible for designing, implementing, maintaining, and securing physical and virtual network infrastructures that support mission-critical operations across multiple security domains. This includes configuring and managing routers, switches, firewalls, Cross Domain Solutions (CDS), and cryptographic devices while ensuring maximum availability, security, compliance, and performance.

 

This position is a demanding, high-energy role requiring broad technical expertise and the ability to support complex, multi-classification network environments. The ideal candidate possesses deep experience with data center and enterprise networking, Cross Domain Solution technologies, and cryptographic systems used in DoW environments. The candidate must also demonstrate strong analytical thinking, problem-solving, collaboration, time management, and the ability to communicate complex technical concepts to both technical and non-technical stakeholders.


General Responsibilities

  • Devise solutions to complex technical challenges within the capacity and operational limitations of installed equipment.
  • Design, implement, and maintain secure network architectures supporting classified and coalition mission partner environments.
  • Design and maintain data center network architectures, including Spine-Leaf and Core/Distribution/Access topologies.
  • Manage Data Center Interconnects (DCI) and cloud/on-premises connectivity.
  • Implement, maintain, and troubleshoot routing technologies including BGP, OSPF, VXLAN, and EVPN.
  • Engineer, integrate, maintain, and troubleshoot Cross Domain Solutions (CDS) to support secure information sharing across multiple security domains and coalition networks.
  • Configure, administer, and maintain cryptographic and COMSEC devices, including key management procedures, cryptographic modernization efforts, and compliance with applicable DoW security requirements.
  • Support secure network transport technologies including encrypted WAN links, VPNs, and Type 1 encryption solutions.
  • Utilize monitoring, performance analysis, network management, and software/hardware tools to troubleshoot and isolate problems, gauge network performance, and trace data and protocol activity.
  • Architect, deploy, and administer production, test, development, and lab environments.
  • Develop and execute contingency plans for network software and hardware failures, including isolated and major outages.
  • Support risk mitigation activities such as Assessment and Authorization (A&A), continuous monitoring, vulnerability management, and configuration management.
  • Conduct functional, interoperability, performance, and security testing.
  • Create and maintain network diagrams, Standard Operating Procedures (SOPs), implementation plans, and audit-ready documentation.
  • Research, evaluate, and recommend emerging network, CDS, and cybersecurity technologies to support mission requirements.
  • Collaborate with cybersecurity, systems engineering, and mission partner teams to ensure secure and effective network operations.
  • Other duties, as assigned.
Preferred Qualifications
  • U.S. Citizen.
  • Active Secret security clearance, with the ability to obtain a Top Secret security clearance.
  • Bachelor’s degree in Computer Science, Information Security, or another Science, Technology, Engineering and Mathematics (STEM) discipline.
  • 5+ years of progressive technical experience, with demonstrated proficiency in associated network engineering frameworks.
  • Ability to work in a hybrid capacity with 4 days onsite at Ft. Meade, MD and/or Fairfax, VA with occasional travel to Ashburn.
  • Ability to travel <20% throughout the lifespan of the Program to CONUS / OCONUS customer sites and government installations.
  • Ability to obtain a DoD 8140 IAT Level II Security+ (or higher) within 90 days of hire.
  • Prior infrastructure team experience with hands-on responsibility for all aspects of network management.
  • Experience designing, implementing, and supporting enterprise and data center network infrastructures in DoD or other highly regulated environments.
  • Hands-on experience with:
    • Cross Domain Solutions (CDS), including deployment, administration, troubleshooting, accreditation support, and lifecycle management.
    • Cryptographic systems, COMSEC equipment, and key management procedures supporting classified network environments.
  • Strong technical knowledge of network infrastructure, systems administration, cybersecurity, and cloud-based platforms (AWS, Azure).
  • Ability to understand a comprehensive system and its environment of operation.
  • Hands-on experience with all of the following activities: 
    • Designing, implementing, and maintaining multi-network transport.
    • Configuring, hardening, and lifecycle management of Cisco series LAN/WAN switches, routers, firewalls, and Intrusion Prevention/Intrusion Detection devices.
    • Boundary protection aligned with Zero Trust principles.
    • Network and troubleshooting with network protocols: IPSEC, L3VPN, L2VPN, MP-BGP, OSPF.
  • Demonstrated mastery in the following technical capabilities:
    • Next Generation Firewalls and layer 3 switches (Fortinet and Cisco).
    • Automation (Python, Ansible, Git, CI/CD).
    • VMware ESXi and NetApp storage appliances.
    • Virtual networking.
    • DoW ACAS, HBSS, SCAP, RMF, and STIGs.
  • Strong problem-solving and decision-making capabilities, with a proven ability to weigh the relative costs and benefits of potential actions and identify the most appropriate solution.
  • Highly developed interpersonal and oral/written communication skills, with the ability to effectively and professionally interact with a diverse set of stakeholders (from peers to end-users to executive management).

Salary Range: $150,000-170,000

General Description of Benefits

Skills Required

  • U.S. Citizen
  • Active Secret security clearance with ability to obtain Top Secret
  • Bachelor's degree in Computer Science, Information Security, or STEM
  • 5+ years of progressive technical network engineering experience
  • Ability to work hybrid onsite (4 days) at Ft. Meade or Fairfax with occasional travel
  • Ability to travel up to <20% to CONUS/OCONUS sites
  • Obtain DoD 8140 IAT Level II Security+ (or higher) within 90 days of hire
  • Hands-on experience with Cross Domain Solutions (CDS) deployment, administration, troubleshooting, and accreditation support
  • Hands-on experience with cryptographic systems, COMSEC equipment, and key management procedures
  • Experience designing, implementing, and supporting enterprise and data center network infrastructures (Spine-Leaf, Core/Distribution/Access)
  • Proficiency with routing and transport technologies: BGP, OSPF, VXLAN, EVPN, MP-BGP, IPSEC, L2/L3 VPNs
  • Experience configuring and hardening Cisco LAN/WAN switches, routers, firewalls, and IDS/IPS
  • Familiarity with Next Generation Firewalls and Layer 3 switches (Fortinet and Cisco)
  • Automation experience: Python, Ansible, Git, CI/CD
  • Experience with virtualization and storage: VMware ESXi, NetApp, virtual networking
  • Knowledge of DoW security tools and frameworks: ACAS, HBSS, SCAP, RMF, STIGs
  • Experience with monitoring, performance analysis, and network management tools
  • Strong problem-solving, decision-making, and communication skills

ECS Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about ECS and has not been reviewed or approved by ECS.

  • Healthcare Strength ECS advertises multiple national-network medical plan options with HSA eligibility alongside dental and vision coverage. Coverage generally begins quickly and is paired with company-paid short- and long-term disability, adding stability to the health package.
  • Retirement Support A 401(k) with Safe Harbor and immediate vesting on employer contributions is emphasized, with an employer match available. Access to an employee stock purchase plan via the parent company provides an additional savings avenue.
  • Parental & Family Support Paid parental leave up to 30 days, adoption assistance, and other family-oriented leaves are highlighted. Feedback suggests these offerings add meaningful value beyond base pay for many roles.

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The Company
HQ: Fairfax, VA
2,129 Employees
Year Founded: 1993

What We Do

ECS, a segment of ASGN (NYSE: ASGN), delivers advanced solutions and services in cloud, cybersecurity, artificial intelligence (AI), machine learning (ML), application and IT modernization, and science and engineering. The company solves critical, complex challenges for customers across the U.S. public sector, defense, intelligence and commercial industries. ECS maintains partnerships with leading cloud, cybersecurity, and AI/ML providers and holds specialized certifications in their technologies. Headquartered in Fairfax, Virginia, ECS has more than 3,400 employees throughout the U.S. and has been recognized as a Top Workplace by The Washington Post for the last five years.

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