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Open nowPosted 138 days ago

Senior Network Engineer

Metron19 open roles

Where
Reston, VA
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Your applicationOpen nowSenior Network EngineerMetron · Reston, VA

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The clock on this job

Early applications get read.

12.3% of postings close within 7 days. Measured by our own scanner across the market. Metron postings stay open a median of 46 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.3%7 days
  4. 19.3%14 days
  5. 35.6%30 days
  6. 57.8%60 days
This job: posted 138 days ago

Metron median: 46 days open

The posting

About Metron

Metron is an employee-owned company dedicated to delivering innovative solutions for the most challenging national security problems. For over 40 years, our principled approach to problem-solving has yielded creative solutions at the intersection of advanced mathematics, computer science, physics, and engineering. Our people are leaders in their technical fields and are passionate about solving challenging problems. We look for individuals who share this same passion and can apply their experience in real-world settings.

Job Description:

Our Reston, VA offices is seeking a Senior Network Engineer to support enterprise network operations, secure infrastructure, campus connectivity, and hands-on implementation across corporate and secure environments.

This is an execution-focused senior technical role. The Senior Network Engineer will configure, troubleshoot, maintain, document, and improve network systems while working closely with network architecture, systems engineering, cybersecurity, vendors, and program teams.

The ideal candidate is a hands-on senior network engineer with strong Cisco experience, disciplined change-management habits, and the ability to troubleshoot complex network, VPN, access-control, and secure-environment issues.

Occasional after-hours/weekend maintenance and emergency response required.

Key Responsibilities:

Network Operations & Implementation

  • Configure, maintain, and troubleshoot enterprise LAN, WAN, wireless, VPN, firewall, DNS, and secure network infrastructure.
  • Execute network changes, switch cutovers, routing updates, firewall/security changes, and connectivity improvements.
  • Support campus, data center, colocation, carrier, ISP, and secure-environment network operations.

Cisco, VPN & Secure Network Support

  • Administer Cisco switching, wireless, security, and related enterprise networking platforms.
  • Troubleshoot site-to-site VPNs, routing issues, latency, packet loss, DNS behavior, firewall behavior, and service-connectivity problems.
  • Support network access-control workflows, including Cisco ISE, TACACS+, RADIUS, and device-administration policies.

Documentation, Change Management & Escalation

  • Coordinate Cisco TAC, carrier, ISP, and vendor support cases through resolution.
  • Follow formal change-management practices, including implementation plans, test plans, risk analysis, backout plans, and maintenance-window coordination.
  • Maintain accurate network diagrams, change records, implementation notes, operational runbooks, and troubleshooting documentation.

Required Qualifications:

  • Able to work on-site in Reston, VA
  • Eligible to obtain and maintain a U.S. security clearance
  • Willing and able to work in classified, secure, or compliance-bounded environments
  • Able to support occasional after-hours and weekend maintenance or emergency response
  • 7+ years of hands-on enterprise networking experience
  • 5+ years supporting Cisco enterprise networking platforms
  • Experience with switching, routing, VLANs, wireless, VPNs, DNS, firewalls, and network security operations
  • Experience troubleshooting site-to-site VPNs, routing, latency, packet loss, DNS, and service-availability issues
  • Experience supporting secure, classified, regulated, government, defense, or security-controlled infrastructure
  • Experience following formal change-management, testing, backout, and documentation practices
  • Ability to coordinate across network, systems, cybersecurity, helpdesk, vendor, and program teams

Preferred Qualifications:

  • Active U.S. security clearance
  • Experience with Cisco ISE, TACACS+, RADIUS, or network access-control policy administration
  • Experience with TACLANE, encrypted transport, secure enclave networking, or air-gapped environments
  • Experience with Cisco firewall/security platforms or enterprise firewall policy troubleshooting
  • Experience with Active Directory, Entra ID, ADFS, SSO, claims, UPN/email hygiene, or ServiceNow identity integrations
  • Working familiarity with virtualization or platform environments such as VMware, Nutanix, Hyper-V, Linux, storage, or backup systems
  • Experience in defense contracting, government programs, CMMC, NIST 800-171, or other compliance-driven environment

Position Location: Reston, VA (the selected individual will be expected to work onsite in the Reston, VA office)

Perks and Benefits

  • Medical, Dental and Vision Insurance
  • Accompanying FSA and HSA options
  • Additional Voluntary Benefits
  • Paid Time Off
  • 9 Observed Holidays and 2 Floating Holidays
  • Paid Parental Leave
  • Military Leave
  • Tuition Reimbursement
  • Professional Development Reimbursement
  • Annual Salary Reviews
  • Profit Sharing
  • 401(k) Traditional and Roth Options
  • Gym and Fitness Reimbursement
  • Employee Assistance Program
  • Employee Referral Program

Metron is an Equal Employment Opportunity (EEO) employer. It is the policy of the company to provide equal employment opportunities to all qualified applicants without regard to race, color, religious, sex, sexual orientation, gender identity, national origin, age, protected veteran or disabled status, or genetic information.

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