Reliability Engineer I / II | Balance of Plant (BOP)

Arizona 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. Summary

Reliability Engineer I / II | Balance of Plant (BOP) – Cooling & Water Systems We're looking for a motivated Balance of Plant Engineer to support the cooling and water systems that are critical to safe and reliable power plant operations. In this role, you'll partner with operations, maintenance, and engineering teams to monitor equipment performance, troubleshoot issues, support outages, and help improve system reliability and efficiency. This position is ideal for an engineer who enjoys hands-on problem solving, learning plant systems, and building technical expertise in a collaborative environment. Key Skills & Responsibilities

System Reliability – Monitor and support the health and performance of cooling water systems and other mechanical plant equipment. Troubleshooting – Assist in diagnosing and resolving equipment and system issues to support safe, reliable operations. Outage Support – Provide engineering support during planned and forced outages. Maintenance Planning – Support maintenance strategies, equipment assessments, and long-term reliability initiatives. Design & Technical Reviews – Participate in evaluating plant modifications, technical documents, and equipment upgrades. Collaboration – Work closely with operations, maintenance, environmental, and engineering teams to implement solutions. Documentation & Analysis – Maintain engineering reports, equipment records, and reliability data.

People We Want to Talk To

Engineers with a passion for reliability, plant operations, and continuous improvement. Individuals with experience or education in mechanical systems, power generation, industrial facilities, or related fields. Strong problem-solvers who enjoy working both in the field and in a technical office environment. Team players who communicate effectively and collaborate across functions. Engineers eager to learn, grow, and take on increasing responsibility over time.

Engineer I

A 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).

Engineer II

A 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.

Knowledge and ability to apply basic discipline engineering principles, practices and theories and use commonly applied engineering approaches and calculations. Problem analysis/resolution techniques. Knowledge of applicable codes, standards, practices, methods and safety standards in the area of applicable engineering discipline.

Approved Engineer 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

1) Assists in the analysis and preparation of 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. May