Network Systems Engineer (Mid-Level)

ULU HI-TECH, INC.•Honolulu, HI

1d•Onsite

About The Position

Ulu HI-Tech is seeking a highly skilled Systems Engineer (Mid-Level) to support a large-scale, globally distributed enterprise network environment that is critical to Department of Defense operations. The ideal candidate will possess strong expertise in LAN/WAN/WLAN, network boundary engineering, routing, switching, network security, and Tier III troubleshooting. This role involves providing advanced engineering, integration, troubleshooting, and operational support for enterprise network infrastructure, acting as a technical lead and Tier III escalation point for complex network challenges. You will collaborate with senior engineers, cybersecurity professionals, and program stakeholders to maintain, enhance, and secure one of the world's largest intranet environments.

Requirements

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.
Active Secret security clearance required.
Must be Top Secret eligible.
Current DoD 8570/8140 IAT Level III certification such as: CASP+, CISSP, CCNP Security, or Equivalent qualifying certification.
Current networking certification such as: CCNA, CCNP, CCIE, or Equivalent vendor certification.
Extensive experience supporting enterprise LAN/WAN/WLAN environments.
Advanced troubleshooting experience with: Routing & Switching, SD-WAN, MPLS, VPN Technologies, OSPF, BGP, EIGRP, Multicast.
Experience supporting large-scale enterprise networks.
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.

Nice To Haves

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.

Responsibilities

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.
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 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.
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.
Participate in an on-call rotation.
Perform scheduled and unscheduled work during off-hours, including maintenance windows, when required.