Power Plant Reliability Engineer Jobs in Phoenix, AZ

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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.

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.

• 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.

• 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.
• 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).
• 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)
• Plustwo (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.)

1. 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 present findings to a diverse group of management, internal staff, customers, vendors, etc.
2. 2) Assists in preparing engineering plans, designs, specifications, cost estimates, scheduling, evaluations and studies. Prepares engineering documentation including drawings, sketches, construction notes, purchase orders, specifications, work orders, bid evaluations, etc. Ensures engineering analyses, design, project control, or oversight work is technically sound, cost effective, and in compliance with established standards, codes, and regulations.
3. 3) Interfaces with customer and other departments to ensure project objectives are understood and that work scope meets customer requirements, budget and schedule.
4. 4) Provides technical and field support within areas of specialty to assigned internal staff and customers. Assists with identifying deficiencies, potential schedule or quality problems and troubleshoots, formulates and initiates corrective action plans. Performs periodic testing and analysis of system data to minimize system/equipment failures. Complies with design, regulatory, operating and maintenance requirements.
5. 5) Participates in the preparation of business cases and operational plans to successfully implement proposed projects.
6. 6) Contacts customers and various levels of management to obtain or present technical data. Presents the results of designs, studies, projects (in terms of new techniques) or approaches to subordinates, colleagues, management and customers.
7. 7) 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.

This position may require access to and/or use of information subject to control under the Department of Energy's Part 810 Regulations (10 CFR Part 810), the Export Administration Regulations (EAR) (15 CFR Parts 730 through 774), or the International Traffic in Arms Regulations (ITAR) (22 CFR Chapter I, Subchapter M Part 120) (collectively, 'U.S. Export Control Laws'). Therefore, some positions may require applicants to be a U.S. person, which is defined as a U.S. Citizen, a U.S. Lawful Permanent Resident (i.e. 'Green Card Holder'), a Political Asylee, or a Refugee under the U.S. Export Control Laws. All applicants will be required to confirm their U.S. person or non-US person status. All information collected in this regard will only be used to ensure compliance with U.S. Export Control Laws, and will be used in full compliance with all applicable laws prohibiting discrimination on the basis of national origin and other factors.

Pinnacle West Capital Corporation and its subsidiaries and affiliates ('Pinnacle West') maintain a continuing policy of nondiscrimination in employment. It is our policy to provide equal opportunity in all phases of the employment process and in compliance with applicable federal, state, and local laws and regulations. This policy of nondiscrimination shall include, but not be limited to, recruiting, hiring, promoting, compensating, reassigning, demoting, transferring, laying off, recalling, terminating employment, 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 or characteristic protected by law.

For more information on applicable equal employment regulations, please refer to EEO is the Law poster. Federal law requires all employers to verify the identity and employment eligibility of every person hired to work in the United States, refer to E-Verify poster. View the employee rights and responsibilities under the Family and Medical Leave Act (FMLA).

In compliance with the Drug Free Workplace Act of 1988, the Company is committed to a work environment that is free from the effects of alcohol and controlled substances, and free from the abuse or inappropriate use of prescribed and over-the-counter medications. The Company requires employees to be subject to drug and alcohol testing that is job-related and consistent with business necessity, regulatory requirements and applicable laws.

CIP Requirement

This position requires Critical Infrastructure Protection (CIP) access consistent with North American Electric Reliability Corporation (NERC) standards. The applicant considered for this role will be required to obtain and maintain CIP access for the duration of employment in this position. A full seven (7) year criminal history will be obtained through the pre-employment background check process (or, for current employees, through supplemental background check process) to fulfill the CIP access requirements. In addition, this position requires an additional background check every seven years to maintain access.

Employees in hybrid roles work both in their home offices (virtually) and alongside their colleagues (in person).

In order for employees to build strong relationships and to promote meaningful in-person interactions, hybrid employees are expected to work about 40% of their time in-person at an APS or other (non-home office) location.

*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 set up.

*Role types are subject to change based on business need.