OverviewArizona Public Service generates reliable, affordable and clean energy for 2.7 million Arizonans. As the state's largest and longest-serving energy provider, our more than 6,000 dedicated employees power our vision of creating a sustainable energy future for Arizona.SummaryAPS is seeking a Controls Engineer II / III / Senior to support our growing portfolio of utility-scale solar, Battery Energy Storage Systems (BESS), and microgrid assets. This role is responsible for the design, implementation, integration, and optimization of control systems across renewable and conventional generation assets, ensuring safe, reliable, and compliant plant operation. The ideal candidate brings a strong understanding of power plant operations across generation types, combined with hands-on experience in industrial control systems, real-time automation, and plant-level control strategies. This position plays a critical role in supporting plant performance, grid compliance, and system reliability through development and maintenance of plant control logic, SCADA systems, and site-level automation.Why APS Renewable Generation: This role offers the opportunity to work across a diverse and rapidly growing fleet of solar, BESS, and microgrid assets, directly impacting grid reliability. The Controls Engineer will be a key contributor in advancing automation, performance, and innovation across APS generation assets.What Success Looks Like:Control systems operate reliably and meet all grid compliance requirementsPlant performance is optimized through effective control strategiesIssues are diagnosed quickly with minimal operational impactStrong collaboration with operations, engineering, and project teamsContinuous improvement mindset applied to fleet-wide controls standardizationPreferred QualificationsExperience with utility-scale solar and/or BESS control systemsHands-on experience with Schweitzer Engineering Laboratories (SEL) RTACsExperience developing or supporting Power Plant Controllers (PPCs)Familiarity with the Inductive Automation Ignition platform (design, scripting, or deployment)Knowledge of inverter controls, EMS systems, and grid interconnection requirementsExperience supporting commissioning and field troubleshooting at generation sitesUnderstanding of NERC/CIP considerations for control systemsFamiliarity with communication protocols (Modbus, DNP3, IEC 61850, etc.)Understanding of SCADA systems and plant-level monitoring/control architecturesMinimum RequirementsEngineer IIA four-year Bachelors degree in an engineering discipline or related applied science discipline (see approved list) from an ABET accredited institution, an International Engineering Alliance (IEA) recognized institution or an ABET Mutual Recognition Agreement (MRA)Plus two (2) years working experience in Engineering-related positions.Engineer IIIA four-year Bachelors degree in an engineering discipline or related applied science discipline (see approved list) from an ABET accredited institution, an International Engineering Alliance (IEA) recognized institution or an ABET Mutual Recognition Agreement (MRA)Plus five (5) years working experience in Engineering-related positions.Engineer SeniorA four-year Bachelors degree in an engineering discipline or related applied science discipline (see approved list) from an ABET accredited institution, an International Engineering Alliance (IEA) recognized institution or an ABET Mutual Recognition Agreement (MRA)Plus eight (8) years working experience in Engineering-related positions.Approved degrees: Materials Science/Metallurgy, Physics, Chemistry, Nuclear, Electrical, Mechanical, Civil, Electronics, Computer Science, Environmental, Chemical, Structural. A four-year bachelor of Engineering Technology degree is not considered an automatic equivalent for a B.S. degree in Engineering. A review of the degree program curriculum must be completed by Engineering department management.Major Accountabilities - Engineer IIAnalyzes and prepares data, technical reviews and evaluations, trend analyses, technology assessments to aid decision making; may present findings to management, staff, customers, vendors.Identifies, communicates and advocates resolution of technical concerns while adhering to engineering principles; ensures high technical quality, cost effectiveness, compliance with standards, and reliability.Interfaces with customers or cross-organizational teams to assess needs and determine project scope.Provides oversight of engineering technical programs by managing requirements and coordinating corrective actions.Provides support for projects and modifications that increase operating efficiency; ensures compliance with design specifications, schedules and regulatory requirements.May assume responsibility for small- to medium-scale projects (planning, designing, scheduling, coordinating).Checks and reviews standard analyses, evaluations, and investigations of others.Provides technical guidance and leadership to less experienced engineers.Maintains awareness of current technology and engineering developments.Major Accountabilities - Engineer IIIPrepares engineering plans, designs, analyses, specifications, cost estimates, and studies; ensures compliance with standards and regulations; checks analyses of others.Interfaces with customers and departments to ensure objectives, budget and schedule; presents results to stakeholders.Enhances department performance by coordinating analyses and providing guidance to personnel.May oversee engineering programs with cross-organizational coordination.May oversee small to medium projects; identifies schedule or quality problems and initiates corrective action; may interface with outside agencies.Provides technical guidance and leadership to less experienced engineers.Participates in developing long-range strategies for significant site problems.Provides input to projects to increase operating efficiency and ensure compliance with requirements.Maintains awareness of current technology and industry developments.Major Accountabilities - Engineer SeniorDevelops and applies unique solutions to a broad range of technical issues; decisions have moderate to significant impact.Prepares complex engineering plans and analyses; ensures technically sound and cost-effective designs; checks analyses of others.Integrates interrelated elements of complex projects; ensures compliance with standards and regulations.Interfaces with customers to ensure objectives and presents results of designs to stakeholders.Provides technical guidance and leadership to less experienced engineers.Assists in problem solving and long-range strategy development for significant site problems.Leverages industry resources to resolve key technical issues; may interface with outside agencies.Plans and coordinates large-scale engineering programs; may manage contracts and resource requirements.Monitors projects and recommends modifications to increase efficiency; may manage contracts.Researches new developments and evaluates feasibility for Company operations.Export Compliance / EEO StatementThis position may require access to and/or use of information subject to export control laws. APS maintains a nondiscrimination policy and equal opportunity in employment in compliance with applicable laws. This includes recruiting, hiring, promoting, compensating, reassigning, and training for all positions without regard to race, color, religion, disability, age, national origin, gender, gender identity, sexual orientation, marital status, protected veteran status, or any other classification protected by law. For more information on applicable equal employment regulations, refer to EEO is the Law and the E-Verify poster. The Company may require background checks for CIP access as applicable.CIP Requirement:This position requires Critical Infrastructure Protection (CIP) access consistent with NERC standards. The applicant will be required to obtain and maintain CIP access for the duration of employment. A full seven (7) year criminal history will be obtained through pre-employment background checks to fulfill CIP requirements, with periodic updates to maintain access.Hybrid: Employees in hybrid roles work both in home offices and on-site. Hybrid employees are expected to work about 40% of their time in-person at an APS or other location. Reside in Arizona (or New Mexico for Four Corners-based employees). Home office must have adequate technology and ergonomic setup. Role types may change based on business need.Employees are expected to reside in Arizona (or New Mexico for Four Corners-based employees).Working from a home office requires adequate technology and an appropriate ergonomic setup.Role types are subject to change based on business need.#J-18808-Ljbffr