FlexaFlexa
  • Discover companies
  • Find a job
  • Resources
Sign inSign up

Quick links

  • Sign in
  • Sign up
  • Book a demo
  • Live feed

For employers

  • How Flexa can help
  • Case studies
  • Talent Insights Report 2026

For users

  • Discover companies
  • Find a job
  • Resources
  • The Flexa Awards

Flexa info

  • About us
  • Contact us
  • FAQs
  • Legal
FlexaFlexa

© 2026 Flexa, All rights reserved.

  • Privacy policy
  • Terms
Discover companies
Find a job
Resources
View company profileApply now

Working at Mott MacDonald

  • Company employees
    18,000 worldwide
  • Gender diversity (m:f:nb)
    0:35:65

Hiring in

  • Africa
  • Northern America
  • Southeast Asia
  • Western Asia
  • Europe
  • Australia
  • Colombia
  • Hong Kong SAR China
  • India
  • Japan
  • South Korea
  • New Zealand

Office locations

Mott MacDonald is seeking an experienced Project Engineer Water to join our growing team in Denver, CO. This is a full-time, hybrid role requiring a minimum of three days per week in the office, offering an expected salary of $118,000 - $144,000 per year. You will support project managers in executing diverse water, wastewater, and stormwater infrastructure projects while collaborating with multidisciplinary teams.

Requirements

  • B.S. Degree in Civil or Environmental Engineering required.
  • Professional Engineer (PE) license in Colorado required.
  • 7+ years of relevant experience in water and wastewater related projects required.
  • Entrepreneurial mindset and strong technical writing skills.

Skills & Responsibilities

  • Technical Design: Oversee technical design deliverables, plans, specifications, cost estimates, and calculations for water and wastewater infrastructure projects.
  • Project Management: Assist project managers by serving as deputy project manager or task lead and coordinating across disciplines and subconsultants.
  • Construction Support: Provide design support services during construction, including submittal reviews, RFIs, and change orders.
  • Team Collaboration: Collaborate with multidisciplinary teams and nurture the development of junior staff.
  • Potential transition routes: People from municipal engineering or environmental consulting roles may bring strong project delivery skills, alongside meeting PE licensure and water sector experience requirements.

Job description

At Mott MacDonald, we are driven by purpose and powered by brilliant people. As a trusted engineering, management, and development consultancy, we work with clients to solve complex challenges and deliver sustainable outcomes that make a meaningful difference for the communities we serve.

When you join us as an experienced professional, you will bring your expertise to work that matters while continuing to grow your career. You will collaborate with talented colleagues across disciplines and geographies, contribute your perspective, and help shape better outcomes through technical excellence, innovation, and integrity.

Build on your experience while helping shape what comes next. At Mott MacDonald, you'll work alongside talented people on complex and rewarding projects that make a real difference. We value fresh perspectives, encourage collaboration, and provide opportunities to expand your skills, take on new challenges, and grow your career. Whether you're deepening your technical expertise, broadening your leadership experience, or exploring new opportunities across our business, you'll be supported by a team that is committed to helping you succeed.

Mott MacDonald is looking for an experienced water/wastewater engineer to join our growing Colorado team. We are actively growing our water practice in the Rocky Mountain Region 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 with national design leaders and project managers. Our water practice supports all markets including dams, geotechnical, energy, and transportation. The role will require supporting project managers in executing water projects; working with multi discipline design teams comprised of 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 construction (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:

  • Entrepreneurial mindset a must.
  • B.S. Degree in Civil or Environmental Engineering required.
  • Professional Engineer (PE) in Colorado
  • 7+ 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.

Bring your expertise, curiosity, and drive to make a difference. If you are ready to join a collaborative consultancy where your perspective is valued, your growth is supported, and you are empowered to lead with integrity, we would love to hear from you.

Benefits & Rewards

The expected salary for this position is $118,000 - $144,000.

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

In addition to base salary, Mott MacDonald offers performance-based bonuses and a comprehensive benefits package, giving employees a direct connection to our success.

Our comprehensive benefits package is designed to support the health, wellbeing, financial security, and professional growth of our employees. Eligible employees have access to medical, dental, and vision coverage, FSA and HSA accounts, company-paid life insurance, short-term and long-term disability coverage, and a competitive 401(k) plan with company matching. We also provide paid time off, paid holidays, caregiver leave, employee referral bonuses, professional registration and membership reimbursements, and tuition assistance to support continued learning and career development.

Collaboration at Our Core

At Mott MacDonald, we believe great ideas happen when we're together. Our hybrid approach centers on an in-office culture, with most of your time spent collaborating face-to-face and a minimum of three days per week in the office. We balance flexibility with connection, so you and your manager can choose how to meet clients, team, and personal commitments.

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.

  • English version
  • Spanish Version
  • Chinese version

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.

Apply now
Mott MacDonald

Project Engineer Water

Denver, Colorado
Hybrid
$118,000 - $144,000 per year

Similar jobs

Mott MacDonald

Senior Project Manager Water/Wastewater

Denver, Colorado
$140,000 - $171,000 / year
Mott MacDonald

Civil Project Engineer

New Orleans
Competitive base salary plus performance-based bonuses
Mott MacDonald

Senior Project Engineer Water

Multiple locations in United States
NY: $152,000 - $186,000 / NJ: $143,000 - $175,000
Mott MacDonald

Senior Civil Engineer

Iselin, New Jersey and New York
$152,000 - $186,000 / year
Mott MacDonald

Project Engineer - Civil & Structural - Energy

Houston, Texas
$116,000 - $142,000 / year
Mott MacDonald

Water/Wastewater Engineer

Pittsburgh, Pennsylvania