SCADA & Controls Engineer (II / III / Senior) - Renewable Generation

About the role

APS 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.

Responsibilities

• Analyzes and prepares a variety of data, technical reviews and evaluations, trend analyses, short to long-range technology assessments, products and services, investigations, product/specification verifications to aid decision making.
• Identifies, communicates and advocates resolution of technical concerns while adhering to sound engineering principles during evaluation / resolution of the conditions. Challenges conditions and decisions when needed to ensure plant systems, engineering designs, project controls and oversight of work has high technical quality, is cost effective, in compliance with established standards, codes and regulations, maintains future reliability, satisfies customer requirements, budget and schedules to meet or exceed all reasonable or agreed upon customer service levels.
• Interfaces with customers or cross organizational team members to assess their needs, determine the scope of the project, obtain necessary data to make key decisions which may require consultation with external or internal customers or employees.
• May provide oversight of engineering technical programs by managing the program requirements, working with cross organizational partners, reviewing and internalizing operating experience and coordinating corrective actions to ensure engineering program elements continue to remain healthy.
• Provides support for projects and modifications that will increase operating efficiency. May review design and documentation of projects to ensure compliance with design specifications, schedules and any regulatory requirements.
• May assume responsibility for small- to medium-scale projects which include planning, designing, scheduling and coordinating all facets of the project.
• Checks and reviews standard analysis, evaluations, and investigations of others.
• May provide technical guidance and leadership to less experienced engineers.
• Remains cognizant of current technology and engineering developments as well as industry and competitive developments. Maintains high individual level of engineering technical capabilities and expertise by formal education, self-study, and awareness of technology advances.

Qualifications

• Engineer II: A four-year Bachelors degree in an engineering discipline or related applied science discipline 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 III: A four-year Bachelors degree in an engineering discipline or related applied science discipline 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 Senior: A four-year Bachelors degree in an engineering discipline or related applied science discipline 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.

Skills

• Experience with utility-scale solar and/or BESS control systems
• Hands-on experience with Schweitzer Engineering Laboratories (SEL) RTACs
• Experience 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 requirements
• Experience supporting commissioning and field troubleshooting at generation sites
• Understanding of NERC/CIP considerations for control systems
• Familiarity with communication protocols (Modbus, DNP3, IEC 61850, etc.)
• Understanding of SCADA systems and plant-level monitoring/control architectures

Benefits

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.