Phoenix, Arizona, United States
Onsite
Posting Date
06/30/26Application Deadline
07/09/26Pay Range
$97,250 - $142,500 annuallyJob Type
UnclassifiedDepartment
Enterprise TechnologyAbout the Position
As a Senior Network Security Engineer, you will provide expert-level engineering and operational support for the organization’s enterprise network and security infrastructure. You will play a lead role in the planning, design, implementation, and ongoing maintenance of secure network solutions across campus, data center, remote offices, cloud environments, and third-party connectivity. This includes core services such as firewall management, networking, VPNs, directory services, identity management, PKI, Web Application Firewalls (WAF), and virtual networks.
In this role, you will focus on implementing and optimizing secure connectivity and access solutions, assisting with the deployment of Zero Trust Network Access (ZTNA), and managing firewall policies, VPNs, and segmentation strategies. You will collaborate with cross-functional teams to deliver secure, resilient, and high-performing network services that meet business and regulatory requirements. As a senior engineer, you will also mentor junior staff and ensure adherence to security best practices and operational standards.
About Us
Are you looking for a career in a dynamic organization that embraces a can-do spirit? Look no further than Maricopa County’s Office of Enterprise Technology!
We are a team that prides ourselves on leveraging technology to create digital transformations. We look for ways to bring about innovative solutions while providing top-notch customer service. Apply today and become part of the team that makes a lasting impact on the future of technology at Maricopa County.
Proud to Offer
Work with a greater purpose
Tuition reimbursement
Exceptional work-life balance, with hybrid and alternative work schedule options
Opportunities for growth and development within Maricopa County
Low-cost, high-value healthcare for you and your qualifying dependents
Child care benefits, including access to our on-site center, Maricopa County Kids Club, dedicated to serving Maricopa County families
Paid vacation, sick time, and parental leave
Extensive wellness program, including an incentive
Enrollment in the Arizona State Retirement System, a defined retirement benefit requiring a 12% monthly contribution rate that includes a 100% employer match on Day 1
Want to learn more about the County’s Qualifying and Compensation Philosophy? Follow this link to learn more! Work With Us | Maricopa County, AZ
We Require
Five years of progressively responsible experience in network operations and engineering within enterprise or large-scale environments
Bachelor's degree in Computer Science, Information Technology, or a closely related field
A combination of post-secondary education and/or job-related experience may substitute for the minimum qualifications on a year-for-year basis.
Other Requirements
Successful candidates must currently possess, or have the ability to obtain, a valid Arizona Driver's license by the time of hire
We Also Value
Okta Certified Professional / Okta Certified Administrator
Cisco Certified Network Professional (CCNP) Enterprise or higher
Palo Alto Networks Certified Network Security Engineer (PCNSE)
Certified Information Systems Security Professional (CISSP)
Experience in designing, implementing, and managing enterprise network infrastructure, including on-premises, cloud, and hybrid solutions
Experience with enterprise LAN/WAN architecture and wireless networking, including planning, deployment, and troubleshooting across campus and remote locations
Experience deploying and configuring Multi-Factor Authentication (MFA) policies using tools such as Microsoft Entra ID, Okta, or Duo to enhance access security
Experience supporting the design and troubleshooting of Single Sign-On (SSO) integrations using SAML, OIDC, and OAuth protocols across enterprise applications
Experience configuring, managing, and troubleshoting Next-Generation Firewalls (NGFW)—such as Palo Alto Networks —including security policies, application control, threat prevention, URL filtering, and VPN services
Experience implementing and supporting VPN solutions, including site-to-site and remote access configurations, with a focus on performance and security
Proficiency in network automation and scripting (e.g., Python, Ansible, or REST APIs) to streamline configuration management and operational tasks
Job Contributions
Design, architect, and govern enterprise network security frameworks and secure connectivity models, establishing standards for firewall policy design, segmentation architecture, and secure access across on-premises, cloud, and hybrid environments; ensure solutions align with enterprise risk tolerance, cybersecurity frameworks, and long-term infrastructure strategy
Engineer and enforce identity-integrated network access controls, developing and implementing authentication and authorization models that align network infrastructure with IAM platforms (e.g., Okta, Microsoft Entra ID, Active Directory), enabling Zero Trust Network Access (ZTNA) and ensuring secure, policy-driven access across users, devices, and applications
Lead and govern the enterprise firewall policy lifecycle, including the evaluation, risk-based approval, and continuous optimization of firewall rules and access controls; assess business needs against security risk, ensuring compliance with regulatory requirements and minimizing exposure to unauthorized access or lateral movement within the network
Design and oversee SD-WAN architecture and advanced network segmentation strategies, ensuring secure and resilient connectivity across geographically dispersed environments while enforcing traffic isolation, performance optimization, and alignment with enterprise security and compliance requirements
Design and oversee SD-WAN architecture and advanced network segmentation strategies, ensuring secure and resilient connectivity across geographically dispersed environments while enforcing traffic isolation, performance optimization, and alignment with enterprise security and compliance requirements
Develop and implement advanced automation and orchestration solutions using scripting, APIs, and configuration management tools to enforce standardized configurations, reduce manual intervention, and ensure consistent application of security policies across complex network environments
Develop, maintain, and govern comprehensive technical and architectural documentation, including network security standards, system designs, configurations, and procedures, ensuring alignment with audit requirements, operational continuity, and enterprise governance practice
Establish and enforce domain registration and external DNS governance controls, including lifecycle management, security monitoring, and protection mechanisms to prevent unauthorized changes, domain hijacking, and exposure to external threat vectors
Serve as the senior technical authority and escalation point for complex and high-risk network security issues, conducting deep technical analysis, guiding remediation efforts, and making informed decisions that directly impact enterprise security posture and operational continuity
Collaborate with cross-functional technical teams and stakeholders to integrate secure network and access control solutions into new and existing systems, ensuring that architecture, implementations, and configurations align with enterprise standards, security frameworks, and business requirements
Continuously assess and enhance the organization’s network security posture by evaluating emerging threats, technologies, and industry best practices, translating findings into strategic engineering improvements and actionable recommendations
Support and lead technical components of audit, compliance, and regulatory initiatives (e.g., CJIS, HIPAA, NIST), including designing and validating controls, responding to audit findings, and ensuring network security architecture meets evolving compliance and governance expectations
Working Conditions
Exerting up to 10 lbs. occasionally or negligible weights frequently; sitting most of the time
Position is typically office or administrative work and is not substantially exposed to adverse environmental conditions
Selection Procedure
Consideration will only be given to candidates who submit online applications
Candidates will be contacted primarily through email and their Workday online application profile
Must pass a pre-employment background and/or fingerprint investigation as required by statute or policy, including drug and alcohol testing requirements for positions designated as safety-sensitive
Maricopa County is an equal opportunity employer and is committed to providing equal employment opportunities to all applicants. If you require a reasonable accommodation during the application process or to perform the essential functions of the position under the Americans with Disabilities Act (ADA), please contact MHRFeedback@maricopa.gov to initiate the interactive process.
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