active Secret)

Critical Solutions•Norfolk, VA

8d•$85,000 - $110,000•Onsite

About The Position

Critical Solutions is seeking a skilled Firewall & VPN Network Engineer proficient in network engineering appliances and technologies (i.e. Firewalls, DMZ, VPN) to join our Transport Operations team. In this role, you will be responsible for designing, implementing, and maintaining robust & mature global network security solutions. Your expertise in configuring enterprise-grade Juniper firewalls, managing DMZ environments, engineering secure Firewall/VPN solutions, and administering Cisco network appliances will be crucial. You will collaborate closely with cross-functional engineering and project management teams to safeguard our network infrastructure against threats and vulnerabilities ensuring the highest levels of operational integrity. You will be a member of a technical team, managing customer relationships and overseeing key resources for Incident Response, Change Management, Problem Management, Operations and Maintenance (O&M), and ITSM and DevSecOps initiatives.

Requirements

U.S. Citizen with an active DoD Secret security clearance.
Requires B.S. Degree and 8-12 years of prior relevant experience. Work experience may be substituted for degree at Hiring Manager's discretion.
Must currently possess an active DoD 8570.01 IAT Level III Certification i.e. CCNP Security, CISSP, or CASP+.
Must currently possess an active Associate level Network Vendor Certification (from one of the following Vendors): Cisco, Juniper, Palo, F5 Networks.
Ability to work or be called in to work during off-hours to meet customer mission support requirements.
Participate in on-call rotation for Incident Management responsibilities among the Transport Operations team.
Network Subject Matter Expert for operations providing Tier-III support to the NOC watch staff.
Extensive experience engineering and troubleshooting networks, including routing, switching, MPLS, VPNs, routing protocols (i.e. BGP, OSPF, IS-IS), switching protocols (i.e. Spanning Tree Protocol, VLANs, LLDP, VoIP) Multicast protocols and emerging network technologies.
Strong understanding and in-depth knowledge of IP network/subnet addressing.
Extensive knowledge of defense-in-depth principles, Network architecture, Modern Network Topologies, Network appliance integrity, and common networking security elements.
Ansible, Python, IaC network automation experience.

Responsibilities

Support Current Operations for the Agency by providing VPN, DMZ, and Firewall Network Engineering Subject Matter Expertise (SME) for the largest Intranet in the world.
Responsible for network modification, operation, integration, maintenance, security, and implementation of services for the as-fielded Agency network.
Collaborates with the Network Operations Center, Network Administrators, and the Network Engineering Team to define and/or continuously improve Network Security Appliances (i.e. DMZ, VPN, Firewalls).
Test and Validate Automation and best practice insertion opportunities.
Leads development of Network SOPs/TTPs.
Drives Continuous Service Improvements (CSI).
Performs system performance tuning and enhancements.
Create and maintain Engineering Implementation Plans (EIP).
Plans and executes network upgrades and maintenance activities with the Operations Manager, NOC Lead, Release Management team and other key stakeholders.
Provides Tier III escalation support and vendor engagement supporting Incident Management activities.
Active participation in Root Cause Analysis for Problem Management activities.
Perform highly technical maintenance and configuration to firewalls, VPNs, and DMZ appliances.