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Commissioning & Startup Engineer - MWH

MWH Constructors
San Francisco, CA Full Time
POSTED ON 11/19/2025
AVAILABLE BEFORE 1/18/2026

MWH is a leading water and wastewater treatment-focused general contractor in the US with a rich history dating back to the 19th century. Fueled by the mission of Building a Better World, our teams are rapidly growing across the nation.

As a company committed to our team's well-being and growth, we offer a supportive work environment, opportunities for advancement, and the chance to contribute to a mission that shapes the future. Your expertise and ambition are valued here.

The work we do matters. The critical systems infrastructure we build changes lives, betters' communities, and improves ecosystems. If you're passionate about this, we want to hear from you!

About the Role

MWH is currently seeking qualified candidates for the position of Commissioning & Startup Engineer to support project work.

This position will be site based in San Francisco, California, however future projects may require relocation or significant travel. As part of the Commissioning and Startup team, this position will assist in the commissioning and startup of a wastewater treatment plant and future municipal projects which will allow the company to minimize risks and maximize profits on turnkey and engineering services contracts. This position will report directly to the Commissioning Manager.

Essential Functions

  • Assist in the development and execution of commissioning and startup plans.
  • Assist in the development of written procedures for testing, cleaning and initial startup of major plant equipment and systems.
  • Assist with client/vendor/subcontractor coordination for the startup of completed systems. Provide training program and materials for process plant equipment.
  • Adapt to changing technologies and learn functionality of new equipment and systems.
  • Assist in resource planning at project level.
  • Assist with documentation of the commissioning process, including commissioning data and as built documentation, input to O&Ms and feedback to the design disciplines.
  • Communicate clearly and concisely, both verbally and in writing.
  • Establish and maintain effective working relationships with those contacted in the course of work.
  • Recognize the importance of satisfying the customer as the key to achieving other objectives.
  • Participate in the acquisition and storing of business and technical knowledge, and the use of those stored intellectual assets.
  • Maintain Health and Safety levels during the commissioning activities.
  • Recognize that Health and Safety considerations are central to all tasks and contribute to ensuring safe working environment for all.
  • Report safety issues responsibly, and participate in improving practice.
  • Ensure your own continuous professional development by participating in external networking/conferences/associations/groups, to stay current on industry changes and innovations.
  • To continue to develop personally and technically.
  • Maintain a positive and solution oriented approach to work, providing open and honest feedback.
  • Undertake such other duties, training and/or hours of work as may be reasonably required and which are consistent with the general level of responsibility of this role.
  • In all internal and external contact, present a professional and positive image of the department and MWH Treatment as well as maintaining mutually constructive, positive and beneficial relationships.
  • Take all reasonable steps to ensure appropriate confidentiality.

Basic Qualifications

  • Bachelor's degree in Engineering, Construction Management, Construction Technology, Business Administration, Science, or other similar field of study.
  • 2 - 3 years' experience in commissioning & start-up and plant operations.
  • Experience in the water/wastewater industry (or) applicable industrial construction responsibilities.
  • Preference will be given to candidates with operations and maintenance and/or commissioning and startup background.
  • Familiar with asset management programs (i.e Maximo) for vertical assets.
  • Proficient in interpreting and understand technical manuals, drawings, blueprints, schematics, and diagrams.
  • Understanding of methods and techniques of maintaining and repairing water/wastewater plant equipment, machinery and related facilities.
  • Experience with operations and maintenance programs at water or wastewater facilities.
  • Understanding of occupational hazards and standard safety practices.
  • Proficient with Adobe and Microsoft Office, specifically Microsoft Word and Excel.
  • Proficient with use of SharePoint document management.
  • Ability to travel, including internationally, is required.

Benefits

  • Group health & welfare benefits including options for medical, dental and vision
  • 100% company-paid benefits including Employee Life Insurance & Accidental Death & Dismemberment (AD&D), Spouse and Dependent Life & AD&D, Short Term Disability (STD), Long Term Disability (LTD) (after 60 day waiting period for STD & LTD only), Employee Assistance Program and Health Advocate
  • Voluntary benefits at discounted group rates for accident, critical illness, and hospital indemnity
  • Paid Time Off (15 days/year)
  • Sick Leave (5 days/year)
  • Paid Parental Leave Program
  • 10 Paid Holidays
  • 401(k) Plan (company matching contributions up to 4%)

MWH Constructors is a global project delivery company in heavy civil construction with a focus on water and wastewater treatment infrastructure. With the ultimate goal of delivering maximum value to clients and their local communities, MWH Constructors provides single-source, integrated design and construction services through a full range of project delivery methods. Incorporating industry-leading preconstruction and construction services, the Company's multi-disciplined team of engineering and construction professionals delivers a wide range of projects, including new facilities, infrastructure improvement and expansion, and capital construction services.

Equal Opportunity Employer, including disabled and veterans.

Please note that all positions require pre-employment screening, including drug and background check, as a condition of employment.

#LI-Onsite


MWH Constructors is an EEO employer – MWH Constructors considers applicants for all positions without regard to race, ethnicity, religion, creed, color, sex, gender, gender identity or expression, national origin, age, disability, veteran status, medical condition, marital status, sexual orientation, citizenship or other basis in accordance with federal, state or local laws or regulations.

 

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