Balance of Plant; BOP Engineer III​/Senior | Cooling & Water Systems

Balance of Plant Engineer III / Senior | Cooling & Water Systems

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.

We’re seeking a technically strong and reliability‑focused Balance of Plant Engineer to support the essential cooling and water systems that keep our power plant operations running smoothly and efficiently. In this role, you'll work across disciplines to provide technical expertise, asset health oversight, and operational support with the goal of ensuring safe, stable, and continuous plant performance.

This is a role for someone who enjoys being hands‑on with systems, solving challenges in real time, and collaborating across plant operations, maintenance, and engineering teams. You'll help lead the charge on system diagnostics, long‑term outage planning, and the evaluation of equipment reliability while supporting ongoing improvements to plant performance and efficiency. Occasional shift work may be required to support critical maintenance during outages.

• Oversee the performance, reliability, and longevity of plant mechanical systems with a focus on water and cooling infrastructure.
• Identify, analyze, and resolve mechanical issues across a variety of plant assets to minimize downtime and maintain safe operations.
• Provide technical engineering support for both planned and forced outages, ensuring smooth execution and quick recovery.
• Develop and maintain strategic maintenance and outage plans, supporting equipment life‑cycle strategies and resource forecasting.
• Execute or review minor plant design changes and assess EPC contractor designs for accuracy, compliance, and efficiency.
• Partner with operations, maintenance, environmental, and site management teams to align engineering recommendations with plant priorities.
• Take ownership of engineering decisions and provide occasional mentorship to junior engineers, fostering a learning‑focused team culture.
• Maintain detailed engineering records, reports, and assessments to support system diagnostics, compliance, and continuous improvement.

• Engineers who are passionate about keeping systems running and take pride in maintaining reliability, safety, and operational excellence.
• Professionals with a background in mechanical systems who have hands‑on experience with cooling water systems, pumps, heat exchangers, and piping infrastructure.
• Collaborators who build strong relationships across teams and know how to bridge the gap between engineering theory and field practicality.
• Strategic thinkers who are comfortable working both short‑term (maintenance events) and long‑term (capital planning and upgrades).
• Engineers who are comfortable rolling up their sleeves, digging into asset diagnostics, and owning the health of critical systems.

• A four‑year bachelor’s 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) institution.
• Five (5) years of working experience in engineering‑related positions.

• A four‑year bachelor’s 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) institution.
• Eight (8) years of working experience in engineering‑related positions.

• Problem analysis/resolution techniques.
• Knowledge of applicable codes, standards, practices, methods and safety standards in the area of applicable engineering discipline.
• Experience in the utility industry.
• Professional Engineer (PE) licensure.