Mid - System Engineer (w​/ active Secret

Mid
- System Engineer (w/ active Secret)

Location:

Pearl Harbor, HI (Alternate Locations: Whidbey Island or Norfolk, VA)
Clearance:
Secret
Type:
Full-time, On-site

Schedule:

Wednesday - Sunday
Salary Range:
Pearl Harbor $99,000 - $128,000. Salary range may vary depending on location.

Critical Solutions is seeking an experienced Systems Engineer Mid to support a large-scale, geographically dispersed enterprise network environment. The ideal candidate will bring strong expertise across LAN/WAN/WLAN, network boundary engineering, routing, switching, network security, and Tier III troubleshooting.

This position will serve as a technical resource and escalation point for complex network issues while supporting engineering, configuration management, change management, lab validation, and future enterprise network solutions.

• Lead efforts to identify, troubleshoot, analyze, and resolve complex network issues in a dynamic enterprise environment.
• Configure, maintain, and troubleshoot network infrastructure, including switches, routers, VLANs, wireless access points (APs), firewalls, and network sensors.
• Provide engineering expertise and operational support for one of the world's largest intranet environments.
• Serve as a Tier III escalation resource for complex incidents, including coordinating with vendors as necessary for incident resolution.
• Serve as an SME and technical backstop for troubleshooting efforts involving multiple network disciplines and teams of CCNP/CCIE-level engineers.
• Apply extensive knowledge of defense-in-depth principles to secure enterprise network infrastructure.
• Troubleshoot technologies and protocols including routing, switching, SD-WAN, WLAN, MPLS, VPNs, OSPF, BGP, EIGRP, switching protocols, and multicast.
• Collaborate with cross-functional engineering and operations teams to enhance network availability, performance, reliability, and security.
• Develop and maintain Engineering Implementation Plans (EIPs) supporting network changes and deployments.
• Create and manage change management tickets for deployments, maintenance activities, upgrades, and other network changes.
• Conduct Root Cause Analysis (RCA) in support of problem management activities and recurring incident resolution.
• Participate in engineering, architecture, and project meetings to design and develop future enterprise network solutions.
• Track engineering and operational work within an Agile/SAFe framework using JIRA.
• Participate in Daily Stand-Ups (DSUs), retrospectives, Program Increment (PI) activities, and other Agile ceremonies.
• Develop and deliver detailed demonstrations and technical updates supporting Program Increment objectives.
• Configuration Management Responsibilities
• Configuration Baseline Management
• Maintain version-controlled configuration baselines for network infrastructure devices, including routers, switches, firewalls, and sensors.
• Maintain accurate records of startup and running configurations, firmware versions, security policies, and associated network configuration data.
• Ensure configuration changes are properly documented, peer-reviewed, approved, and backed up to a centralized repository.
• Maintain change-tracking and rollback capabilities to support operational resilience and configuration recovery.
• Ensure network configurations remain compliant with applicable DISA Security Technical Implementation Guides (STIGs) and organizational cybersecurity policies.
• Lab Testing & Pre-Production Validation
• Conduct pre-production validation testing for firmware upgrades, configuration changes, and security patches before deployment to production networks.
• Perform testing within an isolated lab environment designed to mirror applicable production network topology and configurations.
• Validate network functionality, security policies and controls, device interoperability, performance against established baselines, and deployment/rollback procedures.
• Document testing results, identified risks, remediation requirements, and deployment recommendations prior to production implementation.

• Bachelor's degree with 8–12 years of relevant professional experience; or Master's…