Sr. Network Engineer

Sr. Network Engineer

Salary

$97,790.94 - $151,575.84 Annually

Location

Frisco, TX

Job Type

Full Time

Job Number

202600083

Department

Information Technology

Division

MANAGEMENT INFORMATION SYS

Opening Date

05/01/2026

Closing Date

5/31/2026 11:59 PM Central

• Description
• Benefits
• Questions

Summary

Summary: Under general supervision of the MIS Technology Manager, or designee, the Senior Network Engineer is responsible for maintaining the day-to-day operations of the city of Frisco's local and wide area networks. This individual will be working as a member of the MIS team managing and administering the organization's Cisco-based enterprise networking components. Leads efforts and projects related to the design, installation, operation, support, upgrades, and maintenance of network infrastructure. Administers, maintains, and supports complex and critical infrastructure. Provides user support for network requests, problem resolution, system changes and upgrades. Analyzes infrastructure performance and resolves problems or makes appropriate recommendations. Ensures that all aspects of operability are delivered as part of the implementation process while also ensuring that existing service level is maintained or improved. Contributes to and ensures full compliance with operational standards, procedures, and best practices.

The intent of this position description is to provide a representative summary of the major duties and responsibilities performed by incumbent(s) in this position. Incumbent(s) may not be required to perform all duties in this description and incumbent(s) may be required to perform position-related tasks other than those specifically listed in this description.

Essential Job Functions & Other Important Duties

Essential Job Functions:

• Oversees the day-to-day operations infrastructure services including network, datacenter, security, cloud, backup, and disaster recovery.
• Monitors ticketing queues in help desk system to address issues in a timely manner, recording solutions, serves as an escalation point and escalates as required.
• Oversee vendor management, and oversight to deploy systems that are complete, designed and managed over life cycles.
• Monitor and maintain the operations, maintenance and repair of all mission-critical equipment and systems supporting 24x7 data center operation.
• Evaluates and manages appropriate software and hardware allocations to achieve an optimum performance level.
• Performs capacity planning for projecting future growth.
• Provides recommendations regarding network infrastructure planning and budgeting.
• Maintains growth statistics and network infrastructure inventories.
• Anticipates impact of growth and changes in operations and recommends design and/or process changes.
• Participates in disaster recovery/business continuity planning including backup and recovery procedures and high availability configurations.
• Coordinates network infrastructure planning and management.
• Develops and promotes standard operating procedures.
• Conducts routine network infrastructure audits to ensure compliance with established standards, policies, and configuration guidelines.
• Develops and maintains a comprehensive network infrastructure configuration database/library of all supporting documentation.
• Maintain and test enterprise disaster recovery.
• Performs network infrastructure upgrades including planning and scheduling, testing, and coordination.
• Performs network infrastructure administration setup.
• Performs network infrastructure installations and upgrades.
• Schedules installations and upgrades and maintains them in accordance with established IT policies and procedures.
• Provide and ensure the highest levels of systems and network infrastructure availability and resolve escalations of low to high complexity.
• Research problems, plan solutions, recommend software and systems, and coordinate developments in an orderly manner to meet business requirements.
• Maintains production change control schedule and participates in change control.
• Performs off-hours and weekend maintenance activities as required.
• Participates in the On-Call rotation/after-hours support, ensuring uptime of critical servers, networks and applications and coordinate with third party providers and other members of city staff to ensure rapid and satisfactory response to City emergency technical issues.
• Creates and maintains user accounts, security, permissions, and file systems in accordance with standards and operational requirements.
• Monitors and maintains continuity with system licensing and maintenance agreements.
• Completes daily automated procedures including systems back up, production runs.
• Leads planning, development, and coordination of operations and projects for current and future infrastructures.
• Serves as project liaison - implementations or upgrades, acts as the focal point for communications between CI and the Project Leader.
• Facilitates coordination and a thorough understanding of requirements, attends project meetings, creates written meeting notes, creates appropriate ticketing, etc.
• Maintains policies and standard procedures to increase system uptime.
• Identifies training needs and keeps current on application technologies.
• Monitors security alerts and ensures that appropriate patches are applied in an automated and timely fashion; works with developers to patch or upgrade custom code for security compliance.
• Documents and maintains system standards; researches and recommends innovative approaches for system administration tasks.
• Creates and maintains standard network installation templates.
• Performs the assigned facility(s) rounds to ensure proper equipment operation, aesthetics, and cleanliness.

Other Important Duties:

• Acts as technical lead on projects for City departments or internal IT team as needed.
• May travel to attend meetings, presentations, conferences, and training.
• Performs other duties as assigned.
• Regular and consistent attendance at the assigned work hours is essential during business hours.
• This is an exempt position that requires availability 24x7x365 for scheduled maintenance and/or break/fix issues.

Job Requirements

Knowledge, Skills, and Abilities:

• Proficient in technologies including MPLS, dynamic routing protocols, static routing, MQC framework, QOS, Spanning Tree, IPsec, and SSL VPN.
• Proficient in customer service and training methods and practices.
• Proficient in City policies and procedures.
• Proficient in Cisco Catalyst switches.
• Proficient in Big IP F5 appliances and software modules.
• Proficient in operation and configuration of DNS & DHCP.
• Proficient in Cisco Wireless.
• Proficient in Cisco Nexus series switches.
• Proficient in Cisco Next Gen Firewalls.
• Proficient in Cisco DNA/Catalyst Center.
• Proficient in Cisco Prime.
• Proficient in Cisco ISE.
• Proficient in access-control list (ACL).
• Proficient in documentation and/or technical writing skills.
• Proficient in sub-netting skills.
• Proficient in detecting DoS and DDoS attacks.
• Proficient in troubleshooting circuit issues.
• Proficient in troubleshooting internal and external routing protocols.
• Proficient in the use of tools like Ekahau, Wireshark, Netscout, Fluke Networks, Thousand Eyes, AirMagnet and Cisco software-based network tools.
• Proficient in performing IOS maintenance and upgrades on Cisco platforms.
• Ability to communicate technical issues and problems with end users in a manner which is understandable to those without technical training.
• Skill in problem-solving and logical analysis.
• Skill in responding, troubleshooting, and resolving technical automated management information systems issues over the telephone, electronically or on site.
• Skill in implementing departmental procedures and objectives.
• Skill in effectively transporting, setting up, installing, de-installing, modifying, upgrading, and operating multiple networking systems and software programs.
• Skill in resolving customer complaints and concerns.

Education, Experience, and Certifications/Licenses:

• Bachelor's Degree in Management Information Systems, Computer Science, or related field, and five (5) years of LAN, WAN or equivalent combination of education and experience that support the ability to perform the essential functions and/or skills of the job.
• Current Microsoft Expert level certifications preferred.
• Current CompTIA A+, Network+, Server+, Cloud+, Security+.
• Current Cisco Specialist & Professional level certifications.
• Current F5 Technical Specialist level certifications.
• Experience with 24/7/365 systems operations requirements.
• May be required to obtain applicable certifications (e.g. Microsoft, Cisco, F5).
• Must pass a pre-employment drug screening, background check and post-offer physical agility exam.
• Must possess a valid State of Texas Driver's License.

Environmental Factors & Conditions/Physical Requirements

Environmental Factors and Conditions:

• Work is performed in office and on-site environments.
• May be subject to exposure to extreme weather conditions when loading, unloading, transporting, or installing automated Management Information Systems and personal computer stations.
• May be subject to electrical currents and electrical shock.

Physical Demands:

• This work typically requires the following physical activities to be performed. A complete description of the activities below is available upon request from Human Resources.
• Crouching - bending body forward by bending leg, spine.
• Feeling - perceiving attributes of objects by touch with skin, fingertips.
• Fingering - picking, pinching, typing, working with fingers rather than hand.
• Hearing 1 - perceiving sounds at normal speaking levels, receive information.
• Kneeling - bending legs at knee to come to rest at knees.
• Lifting - raising objects from lower to higher position, moving objects side to side, using upper extremities, back.
• Mental Acuity - ability to make rational decisions through sound logic, deductive reasoning.
• Reaching - extending hands or arms in any direction.
• Repetitive Motion - substantial movements of wrists, hands, fingers.
• Speaking - expressing ideas with spoken word, convey detailed, important instructions accurately, concisely.
• Standing - for sustained periods of time.
• Stooping - bending body downward, forward at waist, with full motion of lower extremities and back.
• Talking 1- expressing ideas by spoken word.
• Visual Acuity 1 - prepare, analyze data, transcribing, computer terminal, extensive reading.
• Visual Acuity 2 - color, depth perception, field of vision.
• Visual Acuity 3 - determine accuracy, neatness, observe facilities/structures.
• Walking - on foot to accomplish tasks, long distances, or site to site.

Work Environment:

• Work performed is primarily medium work, exerting up to 50 pounds of force occasionally, and/or up to 30 pounds of force frequently, and/or up to 10 pounds of force constantly to move objects.

City of Frisco benefits are available to all employees working full-time and scheduled to work at least 30 hours per week. More information is available at http://www.friscotexas.gov/240/Benefits.

01

Do you currently possess a valid State of Texas Drivers License; if not, can you obtain one within ninety (90) days of employment?

• Yes
• No

02

Have you been convicted of a felony in the past 10 years?

• Yes
• No

03

Do you have at least five (5) years of experience in a Senior Network Engineer or equivalent role?

• Yes
• No

04

How many years of experience do you have architecting and/or implementing highly available, secure enterprise networks (Cisco switches/routers) and designing data center network connectivity?

• None
• 1-3 years
• 3-5 years
• 5+ years

05

How many years of experience do you have architecting, deploying, or operating Cisco ACI fabric environments?

• None
• 1-3 years
• 3-5 years
• 5+ years

06

How many years of experience do you have administering Azure networking and Microsoft 365 tenant connectivity (VNets, ExpressRoute/Peering, Azure Firewall, conditional access, etc.):

• None
• 1-3 years
• 3-5 years
• 5+ years

07

How many years of experience do you have managing F5 BIG-IP (LTM/GTMs, iRules, ASM/AOM, HA, upgrades)?

• None
• 1-3 years
• 3-5
• 5 + years

08

How many years of experience do you have designing, building, and implementing Cisco campus and data center networks?

• None
• 1-3 years
• 3-5 years
• 5+ years

09

Please list the expert or professional level technical certifications you have (i.e. Cisco CCNA, CCIE, CCNP utanix\Cohesity\F5)? Please include the year the certification was last earned or that was last renewed.

10

List your experience managing network services (DNS, DHCP, RADIUS/TACACS+, load balancing for infra). For each vendor/solution, state: years supported, scale (zones/scopes, reqs/sec, concurrent sessions), redundancy model, authentication integrations, and monitoring/automation used.

11

Describe your experience with virtualized/SDN fabrics (VXLAN/GENEVE, EVPN, SD WAN, Cisco ACI). For each platform, state: years supported, vendor/version, overlay/control-plane used, underlay integration (VPC/MLAG, VLAN/EVPN), typical scale (segments/EPGs, MAC/route counts), and orchestration/telemetry used.

12

Describe your experience designing and implementing Palo Alto NGFWs (PAN-OS). For each deployment, state: years supported, PAN-OS versions, HA topology, NGFW features used (App-ID, User-ID, PAN-DB, SSL decryption, threat prevention), sizing/throughput decisions, and typical rule/zone architecture.

13

Explain your operational experience administering Palo Alto firewalls: day-to-day change workflow, policy lifecycle (dev?test?prod), log/analytics (Panorama/Log Collectors/Prisma), certificate and key management, and one example of a complex policy or decryption troubleshooting you resolved.

14

Describe your experience designing and managing Cisco Firepower Threat Defense (FTD) environments. For each project, state: years supported, FMC/FTD versions, HA/cluster model, deployment mode (routed/transparent/inline), NAT and VPN practices, integration with Cisco management (FMC/Prime) or SIEM, and a brief example of a major upgrade or migration you led.

15

Outline your routine operational tasks and incident response with FTD: policy/config push process, health and telemetry checks, packet capture/log analysis, failover testing, and one incident where you diagnosed and remediated a production traffic interruption.

Required Question

Employer City of Frisco

Address 6101 Frisco Square Blvd

Frisco, Texas, 75034

Website http://www.friscotexas.gov