Sr. Network Support Engineer

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Sierra Vista, AZ
In-Office
90K-162K Annually
Information Technology • Software
The Role

Leidos is seeking a Sr. Network Support Engineer to join our AGUN team in Fort Huachuca, AZ.

PROGRAM SUMMARY:
The AGUN program is a highly demanding mission and requires expert technical and professional management to support the Army’s global wide area network and security infrastructure. You will be supporting a large and complex network migration and operations for the US Army. This role will include leadership of operations support staff and directing operational support activities for a global network. 

CLEARANCE REQUIREMENT: 
Must have and maintain an active SECRET security clearance or higher. (US Citizenship required)

PRIMARY RESPONSIBILITIES:
•Operate and maintain secure network solutions operated as a centralized enterprise capability for the US Army. 
•Partner with key stakeholders and technical experts to perform legacy environment discovery, assessing current capabilities, configurations, and requirements to provide tier III support for the Army global network.   
•Analyze and understand secure wide area connectivity inclusive of underlay, overlay, and transport design that supports performance, quality of service, security, and mission requirements.  
•Support secure access solutions leveraging zero trust network access (ZTNA) including support for creation of new access policies and maintenance of existing policies.  
•Integrate capacity planning and scaling of network and security stack environments into the overall operational support processes and staff.
•Collect, investigate, and identify network optimization strategies and techniques to meet capacity and performance standards.   
•Work with information assurance teams and the AGUN cybersecurity service provider (CSSP) to ensure compliance to DoD standards to assist with maintenance of the network security posture.
   
BASIC QUALIFICATIONS:

•    Minimum of a Bachelor’s degree with 8+ years' experience or Master's degree with 6+ years of experience (additional years of directly applicable experience may be accepted in lieu of a degree).
•    Require network certification which shall meet or exceed a CCNA (comparable vender certification accepted upon review).
•    Require active DoD IAT Level II (i.e. Security+) certification or equivalent prior to start.
•    Heavily experienced in patching, upgrading, and lifecycle refresh of network devices.
•    Demonstrated experience with networking concepts and protocols: LAN, WAN, BGP, TCP/UDP, IPSec, VPN, Routing(L2/L3), and Firewalls.
•    Demonstrate experience in one or more of the following enterprise network management tools such as Palo Alto Panorama, Cisco Prime, Cisco DNA, or Junos Space.
•    Demonstrate experience in system hardening of network infrastructure to include DoD STIG implementation.
•    Must have experience in working with two or more of the following vender network technologies: Cisco, Juniper, Palo Alto, Dell, or AppGate.
•    Experience with the following protocols: SFTP, SSH, SCP, SNMP, NTP.
•    Must be able to work as part of a team to lead troubleshooting and resolve complex network issues.
•    Excellent written and verbal communication skills.

PREFERRED QUALIFICATIONS:

•    Certified Cisco Network Professional (CCNP) or equivalent.
•    Experience with virtualized network devices and infrastructure
•    Hands on experience with Cisco SD-WAN.
•    Hands on experience with Palo Alto Next Generation Firewalls (NGFW)
•    Knowledge and use of NetSecOps technologies including git, Gitlab CI/CD, Ansible, Terraform, and network element managers
•    Demonstrate expertise in design and improvement of complex and geographically enterprise networks.
•    Expert knowledge of US Army security requirements for network infrastructure.

Original Posting:May 23, 2025

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:Pay Range $89,700.00 - $162,150.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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The Company
Alexandria, VA
27,104 Employees

What We Do

We Are Leidos

For 50 years we have been tackling some of the biggest problems that face our nation and our world.

OUR MISSION
Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020.

Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.

Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.

Your most important work is ahead.

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