Confirmed on the employer's own hiring board on Nov 13, 2026. First seen by Alion on Nov 12, 2026. Ecolab scores B on the Alion truth index.
The Project Engineer is a highly experienced contributor who independently owns significant portions of project engineering scope on complex ultrapure water (UPW) and process utility projects. This role is considered a technical expert in one or more areas of project engineering and a trusted resource across the project team.
The Project Engineer works autonomously with minimal oversight, interfaces directly with customers, A&E firms, general contractors, and internal global engineering teams, and is responsible for the technical quality, execution, and integration of their assigned scope. In addition to delivering high-quality engineering work, this role actively mentors junior engineers, supports system startup and troubleshooting, and contributes to the development and implementation of engineering standards.
HERE'S WHAT YOU WILL DO:
- Own Project Engineering scope for small to medium U.S. projects and defined portions of large or international projects, serving as the primary technical point of contact for assigned scope
- Execute engineering work independently with minimal supervision and minimal errors, ensuring technical quality and schedule adherence
- Specify, size, select, review, and approve equipment including pumps, tanks, pressure vessels, heat exchangers, control valves, and associated components
- Review and approve equipment purchases and vendor submittals within assigned scope
- Lead or support BIM and interconnect piping coordination, including review of third-party models, shop drawings, and clash resolution
- Maintain and manage Plant Data Manager (PDM) databases and associated project engineering documentation
- Coordinate with third-party consultants and vendors for seismic, structural, and specialty engineering analyses
- Maintain project-specific pipe class documents and coordinate with global standards teams to ensure alignment
- Interface directly with customers, A&E firms, general contractors, vendors, and internal global engineering teams
- Support fabrication, installation, startup, commissioning, and operational troubleshooting activities as required
- Provide technical guidance, mentoring, and work review for junior project engineers
- Assist Engineering Management and global teams with development, refinement, and implementation of engineering standards and best practices
YOUR QUALIFICATIONS WILL INCLUDE:
- Proficiency in MS Suite
- Proficiency in AutoCAD Plant3D
- Working knowledge of Revit
- Knowledge of equipment sizing and specification including pumps, pressure vessels, valves, etc.
- Knowledge of water treatment technologies including filtration, membrane treatment, ion exchange treatment, and reclaim water treatment.
EDUCATION, TRAINING AND EXPERIENCE YOU’LL POSSESS:
- B.S. degree in the mechanical or chemical engineering discipline from an accredited university or other related qualified training.
- Typically 5-10+ years of relevant project engineering experience in design-build, EPC, or complex industrial process systems.
- Demonstrated ability to execute independently, lead defined scopes, and deliver high-quality engineering with minimal supervision.
- Strong understanding of UPW/process utility systems, equipment design, piping systems, BIM coordination, and installation practices.
WILL I NEED TO TRAVEL:
- Some travel may be required to support project construction. Maximum of 10% travel, up to two weeks at a time in the US.
Annual or Hourly Compensation Range:
Pay range for this role: $74,700 - $112,00 Many factors are taken into consideration when determining compensation, such as experience, education, training, geography, etc. We comply with all minimum wage and overtime laws.Benefits
Ecolab provides the following benefits: medical, dental, vision, life insurance, accident insurance, critical illness insurance, hospital indemnity insurance, auto insurance, home insurance, pet insurance, identity theft protection, short-term and long-term disability, 401k, pension plans, retirement health care benefits, short-term incentives, vacation (12 days), holidays, parental leave, employee stock purchase plans (Full-Time Associates), discount on day care services and caregiver services, adoption assistance, group legal services, employee assistance program, employee discount program, and education assistance program, on-Site childcare and fitness facilities may be available at select Ecolab locations. Click here for additional benefits information. If you are viewing this posting on a site other than our Ecolab Career website, view our benefits at jobs.ecolab.com/working-here.
Potential Customer Requirements Notice
To meet customer requirements and comply with local or state regulations, applicants for certain customer-facing roles may need to:
- Undergo additional background screens and/or drug/alcohol testing for customer credentialing.
Americans with Disabilities Act (ADA)
Ecolab will provide reasonable accommodation (such as a qualified sign language interpreter or other personal assistance) with our application process upon request as required to comply with applicable laws. If you have a disability and require accommodation assistance in this application process, please visit the Recruiting Support link in the footer of each page of our career website.

