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Mott MacDonald • San Jose, CA, US

Senior Project Engineer Water/Wastewater

Salary:  $131,000 – $161,000 per annum
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Job Description

At Mott MacDonald, we trust our brilliant people to do brilliant things in engineering, management, and development services, supporting multisector project work in over 150 countries. As one of the largest employee-owned companies in the world, we pride ourselves on our ability to deliver exceptional outcomes through our network of 20,000+ talented consultants. With sustainability and innovation at the heart of all our sectors in North America, including, Buildings, Energy, Transportation, and Water.

We believe in empowering our people to excel, learn, and grow, offering diverse opportunities to contribute to career-defining work. Join us and be part of a collaborative environment where your ambitions are united with ours, and you can truly shape your story.

Our Northern California Portfolio is currently looking to add a senior engineer with experience in water or wastewater to join our team. Mott MacDonald’s water/wastewater team is actively growing its water practice in California through diverse portfolio water, wastewater, stormwater, green infrastructure and recycled water projects.

The position offers excellent potential for professional growth and the opportunity to collaborate not only with water resources personnel, but with our many practices including dams, geotechnical, energy, and transportation on larger projects. The role will require supporting the project manager in executing water projects; working with design teams comprising Mott MacDonald’s supporting technical disciplines and specialty sub-consultants.

Responsibilities of the position will include, but not be limited to:

  • Overseeing technical design deliverables for work packages for infrastructure projects in water/wastewater
  • Assists the project manager in managing projects serving as the deputy project manager and/or task/discipline lead for projects.
  • Prepares plans, specifications, cost estimates, and calculations for key deliverables.
  • Provides design support services during constructions (submittal reviews, RFI’s, change orders, etc.).
  • Applies intensive/diversified knowledge of engineering/scientific principals/practices in broad areas of assignment and related fields.
  • Coordinates with other disciplines, subconsultants, and other staff throughout the project.

We invite applications from candidates with the following experience:

  • B.S. Degree in Civil or Environmental Engineering required.
  • Professional Engineer (PE) status in California.
  • 10+ years of relevant experience in water and wastewater related projects – planning, design, execution, and cost estimation for green infrastructure, pumping, and pipeline design projects.
  • Excellent coordination and communication skills, with the ability to work effectively with multicultural and multidisciplinary teams.
  • Effective communication, interpersonal, and teamwork skills; able to collaborate effectively with all levels of staff and clients (technical and non-technical) and nurture the development of junior staff.
  • Working knowledge of Microsoft Office (Microsoft Word, Excel, and PowerPoint) and Microsoft Project. Knowledge of hydraulic and hydrologic modeling software is a plus but not needed. Experience with AutoCAD and/or GIS.
  • Ability and enthusiasm for supervising the work of others, including check and approval of key deliverables.
  • Skilled in technical writing.

Our teams are comprised of bright and enthusiastic people who wish to make a difference to the world that we live in. If you share that vision and don’t have all the experience outlined in this posting, we still want to hear from you!

Let’s discuss how we can help you take the next step in your career and how you can participate in an exciting new chapter for Mott MacDonald in North America.

At Mott MacDonald, we provide a comprehensive benefit package that includes 401k, medical, dental and vision insurance, short-term/long-term disability, paid holidays, PTO, parental leave and company paid life insurance.

The expected salary for this position is $131,000- $161,000

Individual pay is determined based on several factors such as work location, education, experience, and unique skills.

Equal opportunity is the law.

We seek to promote fair employment procedures and practices to ensure equal opportunities for all. We encourage individual expression in our workplace and are committed to creating an inclusive environment where everyone feels they have the opportunity to contribute.


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All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, protected veteran status, creed, marital status, sexual orientation, gender identity, citizenship status or disability status.

Hybrid working policy

At Mott MacDonald, we believe it makes business sense for you and your manager to choose how you can work most effectively to meet your client, team, and personal commitments. We offer a hybrid working policy that embraces your well-being, flexibility, and trust.

Company benefits

Open to part-time employees
Open to part time work for some roles
Enhanced maternity leave – 26 weeks full pay
Adoption leave – 26 weeks full pay
Shared parental leave – We match up to 24 weeks full pay
Enhanced paternity leave – 2 weeks
Private GP service – Private Medical care for all UK staff
Life insurance – 4 x salary
Enhanced pension match/contribution – matched up to 7%
Buddy scheme
Enhanced sick pay
Dental coverage
Compassionate leave
Health assessment
Eye Care Support – Eyecare vouchers
Life assurance
Carer’s leave – up to 5 days, two of which are paid
Pregnancy loss leave
Salary sacrifice
Buy or sell annual leave
Accrued annual leave
Religious celebration leave
Tax-free childcare
Theme park discounts
On-site yoga classes
Cycle to work scheme
Faith rooms
Annual pay rises
Annual bonus
Income protection
Employee discounts
Professional subscriptions – We pay for your primary professional annual subscription
Lunch and learns
Employee assistance programme
L&D budget
Teambuilding days
Travel loan
Returnship
Mentoring
In house training
Study support
Learning platform
Further education support

Working at Mott MacDonald

Company employees

18,000 worldwide

Gender diversity (male:female)

65:35

Currently hiring in

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Office Locations

Awards & Accreditations

2nd – Career Progression

2nd – Career Progression

Flexa awards 2025
3rd – Family Friendly

3rd – Family Friendly

Flexa awards 2025
Work-Life Balance

Work-Life Balance

Flexa awards 2025
Flexible

Flexible

Flexa awards 2025
Culture

Culture

Flexa awards 2025

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