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Principal Water Treatment Planning EngineerManager

Arcadis


Job Location:

Los Angeles, CA - USA

Yearly Salary: $ 170000 - 220000
Posted: 21 July 2026 (30+ days ago)
Application Deadline: 18 November 2026
Vacancies: 1 Vacancy

Job Summary

Description

Arcadis is the worlds leading company delivering sustainable design engineering and consultancy solutions for natural and built assets.

We are more than 34000 people in over 30 countries dedicated toimproving quality of life. Everyone has an important role to play. With the power of many curious minds together we can solve the worlds most complex challenges and deliver more impact together.

Role description:

Arcadis is seeking a dynamic Principal Water Treatment Planning Engineer/Managerto join our Resilience Water Planning Practice in Southern California. This individual will lead water quality and treatment planning projects guide long-term strategy development and support the delivery of complex multidisciplinary planning projects. The role also includes mentoring a high-performing team of planners engineers and scientists.

Role accountabilities:

In this role you will collaborate closely with the regional leadership national practice leaders market sector leads and client account managers to shape the future of water and recycled water planning across Southern California. You will support municipal and utility clients as they navigate evolving regulatory requirements climate uncertainty water supply resilience challenges and infrastructure investment needs.

Responsibilities include:

  • Lead Water Quality and Treatment Planning:Direct comprehensive water and recycled water quality and treatment planning efforts including treatment processes for regulatory compliance (e.g. groundwater and surface water treatment) operations evaluations (e.g. filter assessments or disinfection approaches) distribution system water quality improvement (e.g. nitrification prevention and corrosion control). Develop strategies to address long-term challenges related to water quality and treatment reliability reuse sustainability resilience and regulatory compliance.
  • Lead Water and Recycled Water Treatment Improvements and Operations: Lead water and recycled water treatment evaluations of existing infrastructure and plan improvements to improve operability water quality and infrastructure reliability. Support water and recycled water treatment utility start-up and commissioning and operations troubleshooting.
  • Represent Clients/Utilities during Design and Construction:Support municipalities/utilities as the Owners Agent on alternative delivery projects. Lead water quality evaluations and review designer treatment approaches basis of design and calculations. Lead the development of performance guarantees and the associated start-up and commissioning requirements. Support start-up and commissioning activities to represent the owners interests.
  • Strategic Advisory & Policy Support:Provide technical leadership on water policy regulatory frameworks and planning best practices. Advise clients on climate adaptation drought resilience water recycling and sustainability initiatives.
  • Support Business Development:Partner with Area Managers and Account Leaders across Southern California to develop and implement client engagement strategies. Build and maintain strong client relationships identify and pursue strategic opportunities and represent the firm at key industry events and conferences.
  • Project Leadership & Delivery:Oversee multidisciplinary planning projects ensuring deliverables are completed in alignment with scope schedule budget and Arcadis quality standards. Provide technical guidance and quality assurance on planning analyses and documentation.
  • Capital & Asset Planning:Lead development of capital improvement plans and asset investment strategies incorporating risk-based prioritization lifecycle costing funding strategies and alignment with long-term planning objectives.
  • Professional Leadership:Actively participate in state and local professional associations to strengthen the Arcadis brand and expand networks. Contribute to industry committees and thought leadership initiatives.
  • Develop and Inspire Talent:Mentor and develop water planning professionals support recruitment efforts and foster a collaborative inclusive and growth-oriented team culture.

Travel (up to 20%) isanticipatedacross Southern California for client and project meetings team engagement planning initiatives and participating in industry events.

Qualifications & Experience:

Required Qualifications:

  • Bachelors degree in Civil Environmental or Chemical Engineering or a related field
  • 12 years of progressive experience in water resources planning water system planning or related fields
  • Professional Engineer (PE) license.

Key Skills & Preferred Qualifications:

Masters degree in Civil or Environmental Engineering MBA or a related field preferred. Professional Engineer (PE) license in California preferred. A minimum of 15 years of progressively responsible experience in water resources water planning or related consulting services is preferred. Proven ability to lead multidisciplinary teams manage client relationships and successfully deliver large complex water planning projects. Deep understanding of Californias regulatory environment and the municipal water and recycled water utility market. Demonstrated experience partnering with municipal agencies and utilities to develop and implement long-term planning resilience and sustainability strategies.

Why Arcadis

We can only achieve our goals when everyone is empowered to be their best. We believe everyones contribution matters. Its why we are pioneering a skills-based approach where you can harness your unique experience and expertise to carve your career path and maximize the impact we can make together.

Youll do meaningful work and no matter what role youll be helping to deliver sustainable solutions for a more prosperous planet. Make your mark on your career your colleagues your clients your life and the world around you.

Together we can create a lasting legacy.

Join Arcadis. Create a Legacy.

Our Commitment to Equality Diversity Inclusion & Belonging

We want you to be able to bring your best self to work every day. Our ambition is to be an employer of choice and provide a great place to work for all our people. We are an equal opportunity employer. We are dedicated to a policy of non-discrimination in employment on any basis including race creed color religion national origin sex age disability marital status sexual orientation gender identity citizenship status disability veteran status or any other basis prohibited by law.

Arcadis offers benefits for full time and part time positions. These benefits include medical dental and vision EAP 401K STD LTD AD&D life insurance paid parental leave reward & recognition program and optional benefits including wellbeing benefits adoption assistance and tuition reimbursement. We offer nine paid holidays and 20 days PTO that accrue per salary range for this position is $170000 - $220000/year. Actual salaries will vary and are based on several factors such as experience education budget internal equity project and location.


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Required Experience:

Manager


About Company

Arcadis is the leading global design & consultancy firm for natural and built assets. We are more than 27,000 people, in over 70 countries, who are dedicated to improving quality of life. We do so by developing innovative solutions to create liveable cities, to establish a people-cent ... View more

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