Senior Network Engineer (Hybrid Eligible)

Application ends: September 14, 2025
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Job Description

Requisition Id 12636

Due to the security clearance requirements of this position, we are unable to consider EAD and Green Card holders. Additionally, Visa sponsorship of any kind is unavailable for this position (H1B, F1, OPT, H4, J1, etc.).

We’re hiring a Senior Network Engineer for the Enterprise Operations Group of the Digital Services Infrastructure & Operations Division of the Information Technology Services Division (ITSD) at Oak Ridge National Laboratory (ORNL)! Primary work duties are network engineering, system administration, and providing technical consulting to various work-for-others projects.

As a U.S. Department of Energy (DOE) Office of Science national laboratory, ORNL has an extraordinary 80-year history of solving the nation’s biggest problems. We have a dedicated and creative staff of over 6,000 people! Our vision for diversity, equity, inclusion, and accessibility (DEIA) is to cultivate an environment and practices that foster diversity in ideas and in the people across the organization, as well as to ensure ORNL is recognized as a workplace of choice. These elements are critical for enabling the execution of ORNL’s broader mission to accelerate scientific discoveries and their translation into energy, environment, and security solutions for the nation.

Major Duties/Responsibilities:

Management of Enterprise and Enterprise managed Palo Alto Firewalls
Network design, configuration and troubleshooting.
Lead daily secure operations of the network enclaves.
Provide coordination, notification, escalation and documentation to resolve events/issues, efficiently minimizing customer impact.
Work with and provide outage reports to various levels of management.
Assist with other tasks as needed or as assigned by management.
Ensure systems are configured and maintained per cyber security common control requirements so that accreditation is retained.
Create and maintain infrastructure documentation as it relates to infrastructure systems design, configuration, support, and processes.
Identify, create, communicate, and implement process engineering for technologies to create end-to-end service offerings.
Conduct research, cost-benefit and return-on-investment analysis on proposed hardware, software and systems to justify recommendations, support purchasing efforts, and aid management in making infrastructure design and architecture decisions.
Manage capacity and performance of the WAN/LAN network platforms, ensuring the integrity of the infrastructure.
Proactively monitor, test, collect and analyze system performance statistical data to improve quality of the network environment.
Diagnose and resolve complex configuration and troubleshooting issues within a multi-vendor infrastructure.
Mentor and train junior-level staff on network design, configuration and troubleshooting.
Adhere to a customer service focused culture.
Deliver ORNL’s mission by aligning behaviors, priorities, and interactions with our core values of Impact, Integrity, Teamwork, Safety, and Service. Promote diversity, equity, inclusion, and accessibility by fostering a respectful workplace – in how we treat one another, work together, and measure success.

Basic Qualifications:

A Bachelor’s degree in Engineering, Computer Science, or a related field of study and 8 years of proven experience is required. An overall combination of equivalent experience may be considered.
Experience with routing protocols (OSPF, BGP, etc.)
Experience in Microsoft Visio.

Preferred Qualifications:

Demonstrated problem-solving skills and the ability to visualize a problem or situation and think abstractly to solve it.
Palo Alto, Cisco, Juniper firewall experience highly desired.
Knowledgeable in the use of network and configuration management. Working knowledge of Cisco IOS, Arista, JUNOS, routers, multilayer switch, and layer 2 & 3 switch configuration and deployments.
Knowledge of Cisco, Arista and Juniper Routers/Switches including Catalyst, Nexus, MX, EX, SRX.
Knowledge of Python, REST-API, Shell Scripting and other scripting languages highly desired.
Ability to handle constantly evolving work priorities, to be able to multitask effectively during busy times, and to exercise patience and integrity during stressful situations.
Ability to work responsibly with or without supervision.
Familiarity with JSON and YAML data structures.
Algosec or other firewall management tools.
Network Security knowledge, including familiarity with Zero Trust.
Client VPN technologies, such as Cisco AnyConnect, Global Protect.
Implementation and Design of IPSEC VPN.
Design, implement, and operate a multi-datacenter network.
Familiarity with IPv6 implementations.
Experience with vulnerability scanning.
Effective oral communication and technical writing skills.

Special Requirements:
Visa sponsorship is not available for this position.

This position requires the ability to obtain and maintain a clearance from the Department of Energy. As such, this position is a Workplace Substance Abuse (WSAP) testing designated position. WSAP positions require passing a pre-placement drug test and participation in an ongoing random drug testing program.

Benefits at ORNL:
ORNL offers competitive pay and benefits programs to attract and retain dedicated people. The laboratory offers many employee benefits, including medical and retirement plans and flexible work hours, to help you and your family live happy and healthy. Employee amenities such as on-site fitness, banking, and cafeteria facilities are also provided for convenience.

Other benefits include the following: Prescription Drug Plan, Dental Plan, Vision Plan, 401(k) Retirement Plan, Contributory Pension Plan, Life Insurance, Disability Benefits, Generous Vacation and Holidays, Parental Leave, Legal Insurance with Identity Theft Protection, Employee Assistance Plan, Flexible Spending Accounts, Health Savings Accounts, Wellness Programs, Educational Assistance, Relocation Assistance, and Employee Discounts.

In addition, we offer a flexible work environment that supports both the organization and the employee. A hybrid/onsite working arrangement may be available with this position.

If you have difficulty using the online application system or need an accommodation to apply due to a disability, please email: or call 1.866.963.9545.

This position will remain open for a minimum of 5 days after which it will close when a qualified candidate is identified and/or hired.
We accept Word (.doc, .docx), Adobe (unsecured .pdf), Rich Text Format (.rtf), and HTML (.htm, .html) up to 5MB in size. Resumes from third party vendors will not be accepted; these resumes will be deleted and the candidates submitted will not be considered for employment.
If you have trouble applying for a position, please email
ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply. UT-Battelle is an E-Verify employer.