Network Engineer with Secret Clearance

CALNET Inc.; Washington (District of Columbia); On-site; USD 120,000 - 170,000; Full time

Job summary

CALNET, Inc. is seeking a Network Engineer with a Secret Clearance to design, implement, secure, and sustain enterprise network infrastructure in the Washington DC area.

The role covers LAN/WAN architecture, data center, cloud and hybrid environments with RMF and NIST/NIST 800-53 controls adherence. Responsibilities include configuring routers, switches, and firewalls, performing routine maintenance, and supporting 24x7 operations.

Qualifications

• 5+ years of enterprise network engineering experience.
• Experience with Cisco routers/switches (C8200, C9300, C9500 series preferred).
• Experience with TACLANE Encryptor Operation.
• SolarWinds Certified Professional – Network Performance Monitor (SCP-NPM).
• Strong understanding of: TCP/IP
• BGP, OSPF, EIGRP
• VLANs, NAT, DHCP, DNS
• IPSec, SSL VPN
• Experience with firewall technologies (Cisco FMC, ASA, ISE or equivalent).
• Experience supporting secure government environments.
• DoD 8570 IAT Level II certification (Security+ CE or equivalent).
• CCNA or CCNP Certification
• Active Secret clearance

Responsibilities

• Design and implement enterprise LAN/WAN solutions.
• Develop network diagrams (logical/physical) and configuration documentation.
• Engineer high-availability solutions (HSRP/VRRP, failover, load balancing).
• Support network modernization initiatives (SDN, automation, Zero Trust).
• Configure and manage routers, switches, and firewalls.
• Perform firmware upgrades, patching, and lifecycle refresh planning.
• Monitor performance using enterprise tools (SolarWinds, Splunk, NetFlow).
• Troubleshoot Layer 1–7 issues using packet capture and traffic analysis tools.
• Support 24x7 operations and incident response.
• Implement and maintain network security controls aligned with RMF/NIST/STIG.
• Configure ACLs, VLAN segmentation, VPN tunnels, IPSec, TLS.
• Support firewall rule reviews and change control board (CCB) processes.
• Participate in vulnerability scanning remediation (ACAS/Nessus).
• Contribute to Authority to Operate (ATO) documentation packages.
• Maintain network topology diagrams and IP addressing schemas.
• Develop Standard Operating Procedures (SOPs).
• Provide performance metrics for contract reporting.
• Support audits and inspections.

Skills

Enterprise network engineering

TCP/IP

BGP

OSPF

EIGRP

VLANs

NAT

DHCP

DNS

IPSec

SSL VPN

Tools

Cisco routers/switches (C8200, C9300, C9500)

TACLANE Encryptor Operation

SolarWinds

ACAS/Nessus

Cisco FMC/ASA/ISE

Job description

Network Engineer with Secret Clearance

Founded in 1989, CALNET, Inc. has become one of the fastest growing privately held companies in the Technology, Intelligence Analysis, and Language Services consulting arena. Headquartered in Reston, VA, CALNET employees deliver true value to our customers by employing best practices, world-class technologies industry expertise in every project. CALNET is ISO 9001, ISO 20000, and CMMI-Level III certified

As a Prime Government Contractor for a major government organization in Washington DC, we are currently searching for a talented Network Engineer with Secret Clearance to work in Washington D.C

The Network Analyst is responsible for the design, implementation, operation, security, and sustainment of enterprise network infrastructure supporting mission-critical government systems. This role ensures secure, high-availability connectivity across LAN, WAN, data center, cloud, and hybrid environments while maintaining compliance with DoD Risk Management Framework (RMF), NIST 800-53 controls, and agency-specific cybersecurity policies.

Key Responsibilities

1. Network Design & Architecture

• Design and implement enterprise LAN/WAN solutions.
• Develop network diagrams (logical/physical) and configuration documentation.
• Engineer high-availability solutions (HSRP/VRRP, failover, load balancing).
• Support network modernization initiatives (SDN, automation, Zero Trust).

2. Infrastructure Operations & Maintenance

• Configure and manage routers, switches, and firewalls.
• Perform firmware upgrades, patching, and lifecycle refresh planning.
• Monitor performance using enterprise tools (SolarWinds, Splunk, NetFlow).
• Troubleshoot Layer 1–7 issues using packet capture and traffic analysis tools.
• Support 24x7 operations and incident response.

3. Security & Compliance

• Implement and maintain network security controls aligned with:
  • DoD RMF
  • NIST SP 800-53
  • STIG hardening requirements
• Configure ACLs, VLAN segmentation, VPN tunnels, IPSec, and TLS.
• Support firewall rule reviews and change control board (CCB) processes.
• Participate in vulnerability scanning remediation (ACAS/Nessus).
• Contribute to Authority to Operate (ATO) documentation packages.

4. Documentation & Reporting

• Maintain network topology diagrams and IP addressing schemas.
• Develop Standard Operating Procedures (SOPs).
• Provide performance metrics for contract reporting.
• Support audits and inspections.

Required Qualifications

• 5+ years of enterprise network engineering experience.
• Experience with Cisco routers/switches (C8200, C9300, C9500 series preferred).
• Experience with TACLANE Encryptor Operation
• SolarWinds Certified Professional – Network Performance Monitor (SCP-NPM)
• Strong understanding of:
  • TCP/IP
  • BGP, OSPF, EIGRP
  • VLANs, NAT, DHCP, DNS
  • IPSec, SSL VPN
• Experience with firewall technologies (Cisco FMC, ASA, ISE or equivalent).
• Experience supporting secure government environments.
• DoD 8570 IAT Level II certification (Security+ CE or equivalent).
• CCNA or CCNP Certification
• Active Secret clearance

This opportunity is in Washington DC.

CALNET, Inc. offers a competitive salary and a generous benefits package. This package includes medical, dental, vision, life, short- and long-term disability insurances, a 401(k)-retirement savings plan, and generous leave time.

CALNET, Inc. is an Equal Opportunity Employer. EEO/M/F/D/V