Senior Process Design Engineer

Role Description

Our growing team in California is seeking an experienced Senior Process Design Engineer to join our California Water Business. As part of this role, you will collaborate within a strong and supportive team environment to deliver innovative solutions for our clients.

As a Senior Process Design Engineer specializing in water and wastewater projects, you will play a pivotal role in leading innovative mechanical design and process integration for cutting‑edge treatment facilities, reservoirs, and pumping or lift stations. You will drive the development of comprehensive construction documents and detailed specifications for critical systems, including pumps, valves, gates, and other mechanical components. Your expertise will be central to establishing the basis of design, completing in-depth calculations, and delivering robust solutions tailored to each project’s unique challenges.

You’ll perform thorough assessments, meticulously size and select equipment, develop and evaluate design options with accurate cost estimates, and prepare technical memoranda to clearly document your rationale and recommendations. By leading seamless coordination among various engineering disciplines, you’ll ensure every project benefits from a fully integrated design approach. You’ll develop process flow narratives, conduct hydraulic analyses, and play an active role in project management activities such as budget and schedule tracking.

Beyond engineering, you’ll support business development efforts, contribute to compelling proposals, and mentor junior engineers while ensuring rigorous quality control reviews.

Proficient in mechanical design standards and experience in design bid‑build or alternative delivery projects. Strong working knowledge of CAD and BIM, and proficiency with Microsoft Office (Word, Excel, PowerPoint). Excellent interpersonal, verbal, and written communication skills, strong work ethic, and ability to multi‑task, prioritize, and take direction.

• B.S. in Civil or Mechanical Engineering (or related field) and 10 years of relevant experience in process mechanical engineering for water and wastewater facilities.
• Licensed Professional Engineer (P.E.) in the state of California.

• Mechanical or Civil P.E. preferred.
• 15+ years of relevant experience in process mechanical engineering for water and wastewater facilities.

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 such as wellbeing benefits, adoption assistance, and tuition reimbursement. We offer nine paid holidays and 20 days PTO that accrue per year.

Salary range: $121,651 - $194,304. Actual salaries will vary based on experience, education, budget, internal equity, project and location.

Our Commitment to Equality, Diversity, Inclusion & Belonging:
We want you to be able to bring your best self to work every day. 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, veteran status, or any other basis prohibited by law.