Network Engineer 3

Caribou Thunder; Colorado Springs (CO); On-site; USD 100,000 - 120,000; Full time

Benefits offered by this job

Premium Health, Dental & Vision

401(k) with 6% company match

Flexible PTO & Work Schedule

Education & Certification Reimbursment

Support for Military Leave

Work–Life Balance & Traditional Family

Job summary

Caribou Thunder seeks a Network Engineer 3 to support the TASD contract in Colorado Springs. You will configure, install, and sustain network infrastructure including Aruba switches, routers, and firewalls, while aligning with DISA STIGs and DoD security requirements.

You’ll collaborate with cybersecurity to remediate findings and implement secure, resilient network operations. Ideal candidates bring hands-on experience with DoD cybersecurity requirements, network hardening techniques, and the

Qualifications

• Bachelor’s degree with 5 years of relevant experience, or 9 years of relevant experience in lieu of a degree.
• Hands-on experience configuring, installing, maintaining, and troubleshooting network hardware, including switches, routers, firewalls, or similar infrastructure.
• Experience using network automation tools such as Ansible.
• Ability to evaluate network and system configurations for compliance with applicable security requirements.
• Experience implementing network security hardening techniques and maintaining secure network configurations.
• CompTIA Security+ CE or an equivalent certification meeting applicable DoD 8570.01-M requirements.
• Active U.S. Government Secret security clearance required to start.
• Ability to lift at least 35 pounds.
• Strong verbal and written communication skills.

Responsibilities

• Configure, install, maintain, patch, and troubleshoot network infrastructure (Aruba switches/routers/firewalls).
• Support design and implementation of new network solutions for mission requirements.
• Evaluate configurations against DISA STIGs and security standards.
• Collaborate with cybersecurity to conduct STIG assessments and remediation actions.
• Apply advanced network security hardening techniques and maintain secure configurations.
• Use Ansible to streamline configuration management and maintenance.

Skills

Network configuration

Network automation

Security compliance

Clearance: Secret

Strong communication

Education

Bachelor’s degree

Tools

Aruba switches

Aruba CX

VMware

GNS3

EVE-NG

Job description

Back Network Engineer 3
Engineering Colorado Springs , Colorado Direct Hire Nov 3, 2026

Network Engineer 3

Salary: $100,000 - $120,000 | Location: Colorado Springs, CO| On-site | Active Secret Clearance Required

Caribou Thunder is seeking a Network Engineer 3 to support the TASD contract, configuring, maintaining, securing, and troubleshooting mission-critical network infrastructure. This role will focus on network hardware installation and sustainment, including HP Aruba switches, routers, and firewalls, while supporting the design and implementation of advanced networking solutions. Working closely with cybersecurity and engineering teams, the successful candidate will perform DISA STIG assessments, remediate security deficiencies, implement network hardening measures, and help maintain secure and reliable network operations.

The ideal candidate brings hands-on network engineering experience, knowledge of DoD cybersecurity requirements, and the ability to automate network configuration and maintenance activities. This position requires strong technical problem-solving skills and the ability to collaborate across engineering, cybersecurity, and vendor teams to deliver secure, resilient network capabilities.

A Day in the Life – What you’ll do

• Configure, install, maintain, patch, and troubleshoot network infrastructure, including HP Aruba network switches, routers, firewalls, and related hardware.
• Support the engineering, design, and implementation of new network solutions to meet evolving program and mission requirements.
• Evaluate network devices and system configurations against applicable DISA Security Technical Implementation Guides (STIGs).
• Collaborate with cybersecurity personnel to conduct STIG assessments, identify security deficiencies, document findings, and implement remediation actions.
• Apply advanced network security hardening techniques, including Out-of-Band Management (OOBM) isolation, Virtual Routing and Forwarding (VRF) segmentation, and Control-Plane Policing (CoPP).
• Implement and maintain secure network configurations while supporting system availability, performance, and operational reliability.
• Use network automation tools such as Ansible to streamline configuration management, deployment, and recurring maintenance activities.
• Troubleshoot network hardware, connectivity, configuration, and performance issues, coordinating with engineering and cybersecurity teams to resolve problems.
• Support network installation, upgrades, patching, and repair activities while minimizing operational disruptions.
• Coordinate with hardware and network vendors to expedite equipment installations, maintenance, and repairs to maximize system uptime.
• Develop and maintain technical documentation, configuration records, and implementation schedules.
• Prioritize competing technical tasks, coordinate work against established schedules, and communicate status, risks, and issues to program stakeholders.
• Apply infrastructure automation and configuration management practices to support repeatable, secure, and maintainable network environments.
• Contribute to collaborative engineering efforts using Agile, SAFe, and DevSecOps practices where applicable.
• Perform other duties as assigned in support of contract and mission requirements.

Required Qualifications

• Bachelor’s degree with 5 years of relevant experience, or 9 years of relevant experience in lieu of a degree.
• Hands-on experience configuring, installing, maintaining, and troubleshooting network hardware, including switches, routers, firewalls, or similar infrastructure.
• Experience using network automation tools such as Ansible.
• Ability to evaluate network and system configurations for compliance with applicable security requirements.
• Experience implementing network security hardening techniques and maintaining secure network configurations.
• CompTIA Security+ CE or an equivalent certification meeting applicable DoD 8570.01-M requirements.
• Active U.S. Government Secret security clearance required to start.
• Ability to lift at least 35 pounds.
• Strong verbal and written communication skills, including the ability to document technical activities and communicate issues effectively.
• Ability to prioritize tasks, manage competing requirements, and execute work within established schedules and timelines.
• Ability to work independently and collaboratively within a multidisciplinary engineering team.

Preferred Qualifications

• Experience implementing and maintaining DoD security requirements, particularly DISA STIGs.
• Experience with network simulation and lab environments such as GNS3 or EVE-NG.
• Experience configuring and maintaining Aruba CX operating systems and network switches.
• Experience with hardware-based firewall technologies and network security appliances.
• Experience with virtualization technologies, particularly VMware.
• Experience coordinating with equipment vendors to expedite installations, troubleshoot hardware issues, and complete repairs while maintaining maximum system uptime.
• Knowledge of Infrastructure as Code (IaC) principles and automated infrastructure configuration practices.
• Familiarity with Agile, Scaled Agile Framework (SAFe), and DevSecOps concepts.
• Experience implementing network segmentation, OOBM isolation, VRF configurations, and CoPP policies.
• Experience supporting secure network infrastructure within DoD or other government environments.

Who is Caribou Thunder?

Caribou Thunder is a HUBZone-certified small business providing advanced technical and engineering services to the U.S. Department of War and its mission partners. 35+ states and 20+ countries. We’ve delivered trusted solutions for over two decades — strengthening national readiness across missions on land, undersea, in the air, and throughout LEO, MEO, GEO, and deep space.

Why Caribou Thunder?

TEAM THUNDER — Mission Focused. Delivery Proven. Ready to Serve.

Employee Advocacy Mission Proven Global Reach Skilled Teams Modern Tools Empowering Culture

Our engineers and innovators ensure capability from sea floor to space frontier — delivering on time, maintaining compliance, and performing with precision in high-consequence environments.

We specialize in Engineering Services, Cybersecurity, Software Development, Modeling & Simulation, Digital Engineering, and Artificial Intelligence — disciplines powering the nation’s most complex technical missions.

Employee Advocacy + Benefits

Our people are the heart of Caribou Thunder. We invest in their growth, flexibility, and well-being — knowing their success drives ours.

• Premium Health, Dental & Vision Insurance
• 401(k) with 6% Company Match
• Flexible PTO & Work Schedule
• Education & Certification Reimbursement
• Support for Military Leave
• Work–Life Balance & Traditional Family Values

Your future, your flexibility, your well-being — we invest in you.