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Sr Network Firewall Engineer Jobs in Colorado (NOW HIRING)

Network Engineer Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: Secret ... firewalls, remote access systems, and telecom equipment. * Provides expert knowledge for ...

Network Engineer Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: Secret ... firewalls, remote access systems, and telecom equipment. * Provides expert knowledge for ...

Sr Network Administrator

Golden, CO · On-site

$112.77 - $155.05/hr

## Sr Network AdministratorApplylocations: Golden, COtime type: Full timeposted on: Posted ... Maintain deep technical expertise in routing, switching, wireless, firewalls, VPNs, and network ...

Description SAIC seeks a highly experienced and energetic Network Engineer to support the US Space ... firewalls, remote access systems, and telecom equipment. * Provides expert knowledge for ...

Sr. Network Engineer 102-227

Colorado Springs, CO · On-site

$102K - $140K/yr

Senior Network Engineer , under general direction, manages the purchase, installation, and support ... firewall, routers, switches, controllers * Knowledge of application transport and network ...

Job Title Sr Network Administrator The Senior Network Administrator will combine advanced technical ... Maintain deep technical expertise in routing, switching, wireless, firewalls, VPNs, and network ...

Job Title Sr Network Administrator The Senior Network Administrator will combine advanced technical ... Maintain deep technical expertise in routing, switching, wireless, firewalls, VPNs, and network ...

Sr Network Engineer TECHM-JOB-22680

Denver, CO · On-site

$107K - $146K/yr

Keylent Inc is seeking a Senior Network Engineer to manage and support complex network solutions ... Firewall, VPN services and associated technologies. • Deployment of fault tolerant client ...

Showing results 41-60

Sr Network Firewall Engineer information

What does a Sr Network Firewall Engineer do?

A Sr Network Firewall Engineer is responsible for designing, implementing, managing, and troubleshooting network firewall systems to protect an organization’s digital assets from unauthorized access and cyber threats. They evaluate network security needs, configure firewall policies, monitor for suspicious activity, and ensure compliance with security standards. Additionally, they may lead projects, provide technical guidance to junior engineers, and collaborate with other IT teams to maintain robust network security.

What are the key skills and qualifications needed to thrive as a Sr Network Firewall Engineer?

A Sr Network Firewall Engineer needs deep expertise in network security, firewall configuration, and troubleshooting, typically supported by a bachelor’s degree in computer science or a related field and relevant certifications like Cisco CCNP Security or Palo Alto Networks PCNSE. Familiarity with firewall platforms (such as Cisco ASA, Palo Alto, or Fortinet), intrusion detection/prevention systems, and network monitoring tools is essential. Strong analytical thinking, attention to detail, and effective communication help engineers address complex security issues and collaborate with IT teams. These skills and qualities are crucial for protecting organizational assets, maintaining uptime, and ensuring regulatory compliance in dynamic network environments.

What are some common challenges faced by Sr Network Firewall Engineers when managing large-scale enterprise networks?

Sr Network Firewall Engineers often encounter challenges such as balancing security requirements with network performance, managing complex firewall rule sets, and ensuring minimal downtime during updates or migrations. They must stay current with evolving threats and technologies, while also collaborating closely with security, operations, and compliance teams to implement policy changes. Successfully navigating these challenges requires strong analytical skills, attention to detail, and effective communication across multidisciplinary teams.

What is the difference between Sr Network Firewall Engineer vs Network Security Engineer?

AspectSr Network Firewall EngineerNetwork Security Engineer
CertificationsCCNP, CISSP, Cisco ASACISSP, CompTIA Security+
Work EnvironmentDesigning, implementing, managing firewalls and security policiesMonitoring, analyzing, and improving overall network security
Industry UsageCommon in enterprise and service provider networksUsed across various industries focusing on security infrastructure

The Sr Network Firewall Engineer primarily focuses on configuring and maintaining firewalls to protect network perimeters, while the Network Security Engineer has a broader role in securing entire network systems. Both roles require similar certifications and often work in enterprise environments, but their core responsibilities differ in scope and focus.

What are popular job titles related to Sr Network Firewall Engineer jobs in Colorado?

For Sr Network Firewall Engineer jobs in Colorado, the most frequently searched job titles are:

What cities in Colorado are hiring for Sr Network Firewall Engineer jobs?

Cities in Colorado with the most Sr Network Firewall Engineer job openings:

Infographic showing various Sr Network Firewall Engineer job openings in Colorado as of August 2026, with employment types broken down into 1% As Needed, 79% Full Time, 15% Part Time, and 5% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution.

Diego Garcia: Senior Network Engineer with Security Clearance

KBR

Garcia, CO • On-site

$94K - $129K/yr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 7 days ago


KBR rating

8.3

Company rating: 8.3 out of 10

Based on 48 frontline employees who took The Breakroom Quiz

141st of 453 rated engineering


Job description

Title:
Diego Garcia: Senior Network Engineer Belong, Connect, Grow, with KBR! Program Summary KBR provides full-spectrum base operations support to Naval Support Facility Diego Garcia, a remote location in the British Indian Ocean Territory. Our robust supply chain ensures on-time delivery of mission-critical supplies, and our team conducts essential port and airfield operations in this geographically complex environment. The KBR team is over 1,000 people strong, providing not only life support services such as water treatment, electricity, and telecom/antenna maintenance, but also quality of life services like Morale, Welfare, and Recreation (MWR) and an award-winning dining facility. Job Summary KBR is seeking a highly skilled Senior Network Engineer to join our team in support of mission-critical network infrastructure operations. This role involves hands-on network design, implementation, maintenance, and incident response in a high-tempo operational environment. The ideal candidate will have in-depth technical knowledge and the ability to lead network integration and security initiatives. Minimum 5 years of experience with large-scale Cisco-based WAN/LAN environments. Roles and Responsibilities * Provide incident response support by analyzing, blocking, and remediating network/system threats.
* Correlate firewall logs, system audit logs, and antivirus postures to identify and address security threats.
* Implement recommendations and solutions for routers, firewalls, dial-up, and internet connectivity issues.
* Perform vulnerability management and ensure compliance with security alerts.
* Configure and maintain network infrastructure including web servers, routers, and switches.
* Audit and assess current network and infrastructure processes, recommending improvements aligned with best practices.
* Install, configure, and maintain UNIX/Linux systems.
* Evaluate, recommend, and support LAN infrastructure and topology.
* Design network architecture and coordinate full network integration efforts.
* Oversee and support hardware installation and application software deployment.
* Configure routing protocols and provide user-level software and hardware familiarization training.
* Conduct site surveys and provide technical assistance for fiber optic installation and LAN connectivity.
* Troubleshoot major network nodes and ensure system reliability and performance.
* Perform other duties as assigned. Basic Qualifications * Must be a US Citizen
* Hold an Active Secret Clearance
* Strong knowledge of network capacity planning, security principles, and best practices.
* Proven ability to lead technical teams and projects, implementing infrastructure and security standards.
* Proficiency in Microsoft Office Suite (Word, Excel, PowerPoint, Outlook).
* Ability to perform effectively in high-pressure environments.
* Excellent communication skills (oral and written) for collaboration with clients, stakeholders, and senior management.
* Valid driver's license (Manual and Automatic Transmission).
* Must pass overseas medical screening and be in good health. Preferred Qualifications Education: * Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, or a related field; or equivalent combination of education and experience. Certifications: * Must meet DoD 8570.1M IAT Level II requirements.
* One or more of the following certifications: Security+, GSEC, SCNP, or SSCP. Experience * Proven experience working with Cisco routers, Switches, fiber modems, and subnetting is needed.
* Proven experience configuring and troubleshooting security configuration issues with MS Exchange, WWW, DNS, and NT Domain Controllers are required. KBR Benefits KBR offers a selection of competitive lifestyle benefits which could include 401K plan with company match, medical, dental, vision, life insurance, AD&D, flexible spending account, disability, paid time off, or flexible work schedule. We support career advancement through professional training and development. Belong, Connect and Grow at KBR At KBR, we are passionate about our people and our Zero Harm culture. These inform all that we do and are at the heart of our commitment to, and ongoing journey toward being a People First company. That commitment is central to our team of team's philosophy and fosters an environment where everyone can Belong, Connect and Grow. We Deliver - Together. KBR is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, disability, sex, sexual orientation, gender identity or expression, age, national origin, veteran status, genetic information, union status and/or beliefs, or any other characteristic protected by federal, state, or local law.

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About KBR

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At KBR, we partner with government and industry clients to provide purposeful and comprehensive solutions with an emphasis on efficiency and safety. With a full portfolio of services, proprietary technologies and expertise, our employees are ready to handle projects and missions from planning and design to sustainability and maintenance. Whether at the bottom of the ocean or in outer space, our clients trust us to deliver the impossible on a daily basis.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Houston, TX, US

Year founded

1998