Senior Wastewater Engineer

Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets.

We are more than 34,000 people, in over 30 countries, dedicated to improving quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world’s most complex challenges and deliver more impact together.

Role Description:

Arcadis is seeking a Senior Wastewater Engineer to join our growing Water Planning Practice in the San Francisco Bay Area. This is an exciting opportunity for a motivated and technically strong engineer who is passionate about helping municipal clients solve complex wastewater challenges and plan sustainable, resilient infrastructure that supports communities for the long term.

A key focus of this position is to support Arcadis’ growing presence in the San Francisco Bay Area as wastewater agencies plan and implement the next generation of nutrient management improvements. The successful candidate will help shape Arcadis’ technical and client strategy related to the San Francisco Bay Nutrient Management Program and the implementation of nutrient reduction requirements across Bay Area wastewater utilities.  The position bridges technical leadership, project delivery and client engagement, helping translate emerging regulatory requirements and wastewater science into practical, implementable solutions for Bay Area utilities.

Role accountabilities:

As a Senior Wastewater Engineer, you will be responsible for identifying and positioning for upcoming nutrient planning, optimization and capital improvement programs in the Bay Area with support from Arcadis’ national wastewater practice and regional teams.  Working closely with multidisciplinary teams, you will lead projects across the full lifecycle, from strategic planning and facility assessments through design, construction, and operational optimization.

Responsibilities include:

• Serve as a technical and strategic contributor to Arcadis’ San Francisco Bay Nutrient Management initiative, helping develop utility-specific strategies and a long-term project pipeline associated with nutrient compliance and treatment modernization.
• Lead and support technical evaluations and designs involving biological nutrient removal, process intensification, treatment optimization, sidestream treatment, advanced process control, water reuse, and other approaches for reducing nutrient loads while managing energy, carbon and lifecycle costs.
• Translate complex technical findings into clear engineering calculations, technical memoranda, planning reports, specifications, presentations, and actionable recommendations.
• Support successful project delivery through scope, budget, schedule, resource, quality, and multidisciplinary team coordination.
• Build and strengthen relationships with Bay Area wastewater utilities and regional organizations, contribute to proposals, and participate in appropriate technical forums, workshops and industry organizations.
• Advise clients on regulatory compliance, infrastructure resilience, capacity planning, operational performance, and long-term asset management.
• Mentor and collaborate with junior staff, sharing technical knowledge and supporting a strong, inclusive team environment.

Travel up to 40% may be required to support client meetings, workshops, site assessments, conferences, and project delivery activities throughout Northern California.

Key Skills & Experience

The ideal candidate will bring strong experience in wastewater planning, treatment systems, and municipal infrastructure projects, with a proven ability to lead complex technical assignments and build lasting client relationships. This individual will have experience in wastewater treatment processes, collection and conveyance systems, biosolids management, and water reuse along with knowledge of California wastewater regulations and permitting requirements. The successful candidate will demonstrate strong project management, problem-solving, and communication skills, with the ability to manage multiple priorities. Experience mentoring junior staff, collaborating with multidisciplinary teams, and serving as a trusted advisor to municipal clients is highly valued.

Qualifications & Experience:

Required Qualifications:

• Bachelor's degree in Chemical, Civil, Environmental, Mechanical Engineering, or a related engineering discipline.
• 10 years of experience supporting wastewater planning, design, and infrastructure projects, including experience working with municipal clients and projects in California.
• Professional Engineer (PE) license in California or ability to obtain California licensure within six months of hire.

Preferred Qualifications:

• Master's degree in Engineering or related field.
• 15 years of experience in wastewater planning, design, and infrastructure projects.
• Experience working with clients and projects in the Bay Area.

Why Arcadis?

We can only achieve our goals when everyone is empowered to be their best. We believe everyone's contribution matters. It’s 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.

You’ll do meaningful work, and no matter what role, you’ll 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 year. The salary range for this position is $129,536- $194,304. Actual salaries will vary and are based on several factors, such as experience, education, budget, internal equity, project and location.

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