Title: Commissioning Engineer

Location: Chino, CA

Salary: $98K-$150K


Job Summary:

This position will provide support to the Project Management team through design, construction and commissioning, and overseeing the installation of systems, plants and equipment for the major capital projects as well as supporting various other projects and operational initiatives.

Essential Duties and Responsibilities

Essential duties and other responsibilities include, but are not limited to, the following:

  • Provides process expertise during design phase of project.
  • Collaborates with the Project Management team to provide input into project schedules.
  • Oversees commissioning activities and validates that the process designs are capable of being safely commissioned.
  • Guides the preparation of commissioning plans and procedures.
  • Develops and implements commission requirements.
  • Designs and develops comprehensive commissioning performance tests for utilization and validation of project operations.
  • Collaborates with project management team to determine operational constraints, challenges and impediments.
  • Provides guidance and expertise to ensure the successful operation of assigned projects.
  • Develops instructional documentation and procedures reflecting project start-up, operations, plans and training procedures for maintenance activities and assigned project personnel.
  • Dedicated to achieving a “Zero Accident Culture” by developing and implementing to site safety protocols and adhering to OSHA safety standards.
  • Ensures adherence to insurance, labor relations, Equal Employment Opportunity (EEO), risk management, and quality control programs and protocols.


To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required.

Required Education/Experience/Skills

  • Professional Engineering background with a minimum of five (5) years’ experience in the field of water and wastewater treatment process commissioning. A combination of education and experience may also be considered.
  • Experience in tie-in planning, pre-commissioning, start-up, and process validation testing.
  • Strong working knowledge of mechanical, electrical, and automation systems and the associated commissioning activities of each.
  • Experience writing commissioning procedures.
  • Design-Build experience a plus but not required.
  • Solid understanding of equipment used in the wastewater industry.
  • Knowledge of various construction methods and materials, their characteristics, installation procedures and tolerance.
  • Exceptional written and verbal communication skills
  • Ability to work in an active construction site.

Certificates, Licenses, Registrations

  • A valid California Driver’s License


To perform the job successfully, an individual should demonstrate the following competencies:

Attention to Communication: Ensures that regular, consistent, and effective communication takes place; Ensures that important information is shared with others on a timely basis as appropriate in their organizational unit; Proactive in keeping their manager informed on a regular basis about progress and problems, avoids surprises.

Analytical Thinking: Approaches problems using a logical or sequential approach, systematically comparing two or more alternatives. Notices discrepancies and inconsistencies in available information. Identifies parameters and considerations needed to analyze situations and make decisions. Conducts decision‐based cost/benefit or risk/success analyses. Prioritizes tasks. Provides solutions to project hurdles.

Results Oriented: Focuses on the desired result of one’s own actions/performance, sets challenging goals and focuses appropriate effort on meeting or exceeding them. Persistent and effective at overcoming obstacles. Tracks performance against goals and identifies shortfalls on a timely basis. Identifies and employs ways to address and correct problems. Maintains commitment to achieving goals even in the face of obstacles and frustrations. Exerts unusual effort over time to achieve a goal. Demonstrates a sense of urgency about solving problems and getting work done.

Collaboration: Develops, maintains, and strengthens partnerships with others inside or outside of the company who can provide information, assistance, and support. Recognizes and appreciates the business concerns and perspectives of others. Provides valuable and needed assistance, information, and support to others, to build a basis for future reciprocity, makes others want to build a partnership.

Constituent Orientation: Displays a clear, service centered approach and respectful disposition towards one’s external and/or internal constituents. Quickly and effectively solves problems, communicates with constituents to find out what they want and how satisfied they are with what they are getting.

Presentation Skills: Is effective in a variety of formal and informal presentation settings: one‐on‐one, small, and large groups. Communicates effectively, both inside and outside the company, on both simple and complex topics. Commands attention and manages group process during the presentation. Is cognizant of audience response and able to adapt content and style accordingly.

Personal Integrity: Ensures integrity of the Company. Develops and practices the highest ethical standards. Honors commitments, communicates openly, honestly and directly. Instills mutual trust and confidence. Treats all people with respect, values diverse perspectives, supports the Company’s diversity initiatives.


Physical Requirements 

Physical Demands 

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.

While performing the duties of this job, the employee is regularly required to use hands to finger, handle, or feel, reach with hands and arms, talk, hear, taste, and smell. The employee is frequently required to stand, walk, climb or balance, stoop, kneel, crouch, and/or crawl. The employee is frequently required to sit. The employee must frequently lift and/or move up to 50 pounds. Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception and ability to adjust focus.

Work Environment 

The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job.

Office: The noise level in the work environment is usually moderate.

This job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.

Equal Opportunity Employer

The Company is an Affirmative Action and Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability. Equal Employment Opportunity Posters  If you’d like to view a copy of the company’s affirmative action plan or policy statement, please email careers@wmlylesco.com.  If you have a disability and you believe you need a reasonable accommodation in order to search for a job opening or to submit an online application, please e-mail careers@wmlylesco.com or call 559-441-1900. This email and phone number is created exclusively to assist disabled job seekers whose disability prevents them from being able to apply online. Only messages left for this purpose will be returned. Messages left for other purposes, such as following up on an application or technical issues not related to a disability, will not receive a response.