Network Systems Engineer (Mid-Level)

ADP, Inc.; Honolulu (HI); Hybrid; USD 120,000 - 170,000; Full time

Job summary

Ulu HI-Tech seeks a mid-level System s Engineer to support a large-scale, globally distributed enterprise network environment for DoD operations. You will provide advanced engineering, integration, and operational support across LAN/WAN/WLAN, firewalls, and network security, serving as a technical lead and Tier III escalation resource.

Collaborating with senior engineers, cybersecurity professionals, and stakeholders, you will help maintain and secure one of the world’s largest intranet

Qualifications

• Bachelor's degree with 8–12 years of experience or Master's with 6–10 years.
• Equivalent education/experience substitutions may be considered.

Responsibilities

• Lead efforts to identify, troubleshoot, analyze, and resolve complex network issues in a dynamic enterprise environment.
• Configure, maintain, and troubleshoot switches, routers, VLANs, APs, firewalls, and sensors.
• Act as Tier III escalation resource for complex incidents and coordinate with vendors.

Skills

LAN/WAN/WLAN

Network troubleshooting

Tier III escalation

Security architecture

Agile/SAFe with JIRA

Education

Bachelor's degree

Master's degree

Tools

CCNP Security

CCNA

CCNP

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

System s Engineer ( Mid-Level)

Preferred Location: Pearl Harbor, HI (PRLH)

Alternate Locations: Whidbey Island (WHDB) or Norfolk, VA (NRFK)

Position Summary

Ulu HI-Tech seeking a highly skilled System s Engineer Mid to support a large-scale, globally distributed enterprise network environment supporting mission-critical Department of Defense operations. The ideal candidate will bring strong expertise across LAN/WAN/WLAN, network boundary engineer ing, routing, switching, network security, and Tier III troubleshooting.

In this role, you will provide advance engineering, integration, troubleshooting, and operational support for enterprise network infrastructure, serving as a technical lead and Tier III escalation resource for complex network challenges. You will work alongside senior engineers, cybersecurity professionals, and program stakeholders to maintain, enhance, and secure one of the world's largest intranet environments.

What You'll Do:

• 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 engineer ing expertise and operational support for one of the world's largest intranet environments.
• Act as a Tier III escalation resource for complex incidents, including coordinating with vendors as necessary for incident resolution.
• Act as an SME and technical backstop for troubleshooting efforts involving multiple network disciplines and teams of CCNP/CCIE-level engineer s.
• 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 engineer ing and operations teams to enhance network availability, performance, reliability, and security.
• Develop and maintain Engineer ing 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 engineer ing, architecture, and project meetings to design and develop future enterprise network solutions.
• Track engineer ing 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.

Change & Configuration Management Responsibilities

• 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.
• 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.

Mandatory Qualifications

Education & Experience

• Bachelor's degree with 8–12 years of relevant professional experience; or
• Master's degree with 6–10 years of relevant professional experience.
• Equivalent education and experience substitutions may be considered at the Hiring Manager's discretion.

Security Clearance

• Active Secret security clearance required.
• Must be Top Secret eligible.

Certifications

Current DoD 8570/8140 IAT Level III certification such as:

• CASP+
• CISSP
• CCNP Security
• Current networking certification such as:
  • CCNA
  • CCNP
  • CCIE
  • Equivalent vendor certification

Technical Skills & Expertise

• Extensive experience supporting enterprise LAN/WAN/WLAN environments.
• Advanced troubleshooting experience with: Routing & Switching, SD-WAN, MPLS, VPN Technologies, OSPF, BGP, EIGRP.
• Experience providing Tier III operational support and incident escalation.
• Strong understanding of network security architecture and defense-in-depth concepts.
• Experience working in Agile and/or SAFe environments utilizing JIRA.
• Strong verbal, written, analytical, and problem-solving skills.

Operational Requirements

• Ability to participate in an on-call rotation.
• Ability to perform scheduled and unscheduled work during off-hours, including maintenance windows, when required.
• Ability to travel up to 10%.

Preferred Qualifications

• Previous experience supporting the Navy Marine Corps Intranet (NMCI) network.
• Previous experience supporting Department of Defense (DoD) programs and environments.
• Experience with network automation and Infrastructure as Code (IaC) technologies and practices.
• Hands-on experience with automation technologies such as Ansible and Python.
• Experience with Arista networking technologies.
• Advanced Cisco networking certifications, including CCNP or CCIE, are highly desirable.