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Markon

Senior Network Engineer

Markon

. Design and develop Data Center, LAN, WAN, and Client Access network architectures supporting mission requirements .

Posted 10/5/2026full-timeChantilly • Virginia • United StatesSenior💰 $170,000 - $210,000 per yearWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in designing, building, and maintaining Data Center, LAN, WAN, and Client Access networks, with a strong focus on implementing IT and cybersecurity best practices. Proven ability to provide technical leadership and mentor engineering teams while ensuring high availability and operational efficiency.

Highest-signal resume keywords
Active TS/SCI ClearanceCisco Data Center TechnologiesCisco Application Centric Infrastructure (ACI)Network Monitoring TechnologiesTechnical Leadership

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
Cisco IOS-XECisco NX-OSMACsecHSRPVRFVPCBGPEIGRPFirewall/VPN TechnologiesHigh-Availability Technologies
Soft Skills
Analytical SkillsProblem-Solving SkillsInterpersonal SkillsCommunication SkillsMentoring Skills
Tools & Technologies
Cisco ASAFirepower ManagementNutanix HypervisorPalo Alto FirewallsSIEM TechnologiesSplunkPCAPNetFlowSolarWindsCollaboration Tools
Industry Keywords
Data Center ArchitectureNetwork Lifecycle ManagementCybersecurity Best PracticesTechnical ValidationIntegrated Solutions

Tech Stack

Tools & technologies
Cyber SecurityFirewallsiOSLinuxSplunkTypeScript

About the role

Key responsibilities & impact
  • Design and develop Data Center, LAN, WAN, and Client Access network architectures supporting mission requirements
  • Engineer, build, and maintain Data Center, LAN, WAN, and Client Access networks and systems
  • Integrate, test, validate, and deploy network solutions within mission environments
  • Perform full lifecycle management of network systems, including design, build, deployment, maintenance, and sustainment
  • Monitor network environments and troubleshoot complex technical and operational issues
  • Provide technical validation of proposed network designs and ensure solutions incorporate program and engineering best practices
  • Provide technical guidance and leadership across network engineering and related functional areas
  • Implement appropriate IT and cybersecurity best practices throughout network design and deployment
  • Support highly available network architectures and associated implementation and deployment activities
  • Collaborate with network engineers, systems engineers, project management, and other technical stakeholders to deliver integrated solutions
  • Mentor and share technical knowledge with other engineers while maintaining current technical skills and tradecraft
  • Perform additional technical duties as directed by Project Management

Requirements

What you’ll need
  • Active TS/SCI with a FSP is required
  • Bachelor’s degree related to the technical discipline and at least 11 years of relevant experience; OR Associate’s degree and at least 13 years of relevant experience; OR no degree and at least 15 years of relevant experience
  • Recent hands-on experience, within the last 3 years, with Cisco Data Center, WAN, LAN, and Client Access technologies, including MACsec, HSRP, VRF, VPC, ACLs, BGP, and EIGRP
  • Experience building, deploying, and maintaining Cisco Application Centric Infrastructure (ACI) networks
  • Recent hands-on experience with Cisco IOS-XE and NX-OS, customer-specific transport networks, and firewall/VPN technologies including FTD and ASA
  • Hands-on experience implementing Sponsor IT and cybersecurity best practices, collaboration/ticketing tools, and high-availability technologies
  • Recent experience, within the last 3 years, providing technical leadership to network engineering teams
  • Ability to mentor and transfer technical knowledge to others
  • Strong analytical, problem-solving, interpersonal, and communication skills
  • Ability to operate independently and within collaborative technical teams
  • Willingness and ability to travel on an infrequent, as-needed basis, primarily CONUS
  • Desired: Experience building, deploying, and maintaining Cisco ASA firewalls using Firepower Management
  • Desired: Recent hands-on experience with network and application load balancers
  • Desired: Experience with Nutanix hypervisor platforms
  • Desired: Experience with Palo Alto firewalls and Panorama
  • Desired: Experience with SIEM, network monitoring, and security analytics technologies such as Splunk, PCAP, NetFlow, or SolarWinds
  • Desired: Experience working with Linux operating systems
  • Desired: Ability to evaluate emerging technologies and incorporate appropriate technologies into technical plans

Benefits

Comp & perks
  • Medical
  • Dental
  • Vision
  • Life Insurance
  • Short-Term Disability
  • Long-Term Disability
  • 401(k) match
  • Flexible Spending Accounts
  • EAP
  • Training and Tuition Assistance
  • Paid Time Off
  • Holidays
  • Infrequent CONUS travel