IT Infrastructure Engineer III / Senior

About the role

Summary IT Infrastructure Engineer III / Senior at APS, this role supports the technology behind Arizona’s non-nuclear generation fleet, ensuring reliability, security, and future readiness.

Responsibilities

• Support and maintain SCADA and related infrastructure for renewable and fossil generation facilities.
• Partner with generation teams to troubleshoot issues, support applications, and improve system performance.
• Travel to generation sites for hands-on support and represent the IT team as a trusted technical partner.
• Work on infrastructure projects that enhance security, reliability, and future readiness of generation systems.
• Participate in a 24x7x365 rotational support model for continuous operations.

Requirements

• Bachelor's degree in Information Technology or related field.
• Five (5) years of prior relevant experience or equivalent combination of education and directly related experience.
• Strong technical knowledge within a job area or system, and basic knowledge across related technical areas.
• Experience supporting IT infrastructure and applications in an operational or industrial environment.
• Knowledge of renewable and fossil generation systems.
• Collaborative, service-oriented mindset with a focus on reliability, safety, and customer support.

Preferred Special Skills, Knowledge Or Qualifications

• Proficient in maintaining/troubleshooting SCADA HMI platforms.
• Troubleshooting; installing and repairing PC hardware and software.
• Advanced design, maintenance and repair of servers.
• Advanced information system configuration management.
• Knowledge of renewable and fossil generation plant equipment, including inverters, controllers, and tracking systems.
• Experience supporting battery management systems, including troubleshooting issues and interfacing with vendors.
• Experience providing network support, including troubleshooting, configuration, and performance monitoring.
• Proficient in server administration across virtualized and physical environments for both Windows and Linux systems.
• Hands-on experience managing and supporting Active Directory, including user/group administration and policy management.
• Ability to travel to generation facilities and corporate offices as needed.
• Ability to develop and write technical documentation; evaluate and test emerging technologies.

Major Accountabilities

• Build and maintain HMI systems within a process control environment.
• Drive restoration of HMI/SCADA systems impacting generation operations.
• Interface with vendors for support and engineering of systems during projects and upgrades.
• Provide higher level support to help desk personnel or other engineers/analysts.
• Participate in a rotating 24/7 on-call support schedule for mission-critical applications.
• Manage projects at this level, requiring responsibility for the delegation of work and the review of others' work products and engineering projects.
• Partners with technical architects to translate architectural designs into operations.
• Act as primary on-site IT/OT representative for generation facilities.
• Act as primary coordination point between Generation IT, Network Engineering, Cybersecurity, and plant operations.