Process Mechanical Engineer

At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good.

We challenge what is currently accepted, so we can shape innovative and lasting solutions for tomorrow. If you are interested in a long and rewarding career working with the industry’s best and most innovative engineering employers, then Jacobs is where you belong. We are looking for a driven and curious entry level Process-Mechanical Engineer to work on water/wastewater projects locally in Oregon and across the Western United States.

As an entry level Process-Mechanical Engineer in Corvallis, you will join a core group of water/wastewater and mechanical engineers and designers on studies, designs, and field assignments to deliver innovative solutions to challenging technical problems that our clients face. You’ll be charged with designing water and wastewater treatment facilities, conveyance systems, technical writing, and construction drawing and specification production.

We’ll have you assist in designing pump stations for water and wastewater, including pipe sizing calculations, selection of pump type, valves, and appurtenances for plant process piping systems.

• Bachelor’s degree in mechanical engineering or related engineering discipline
• Educational emphasis and a strong interest in treatment and/or mechanical system design and operation
• Self-motivation, team-oriented work practices, strong data analysis skills, technical problem-solving ability, organizational skills, and the ability to effectively multi-task in a fast-paced environment
• Proficient skills with MS Office Suite (Word, Excel, PowerPoint)

• EIT certification
• 3 or more years of direct experience in municipal wastewater treatment or process mechanical for water/wastewater treatment plants, pump stations and conveyance systems experience
• Hydraulic modeling skills (e.g. Fathom, Pipe-Flo)
• Construction or facility operations experience
• Active in relevant professional organizations
• Working with and leading project teams and managing projects
• Experience working and communicating directly with clients

• Our health and welfare benefits are designed to invest in you, and in the things you care about.
• Your health.
• Your well-being.
• Your security.
• Your future.
• Employees have access to medical, dental, vision, and basic life insurance, a 401(k) plan, and the ability to purchase company stock at a discount.
• Eligible employees may also enroll in a deferred compensation plan or the Executive Deferral Plan.
• Jacobs has an unlimited U.S. Personalized Paid Time Off (PPTO) policy for full-time salaried/exempt employees, seven paid holidays, and caregiver leave.
• And certain roles may be eligible for additional rewards, including merit increases, performance discretionary bonus, and stock.

The base salary range for this position is $60,900.00 to $. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.

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

Job posted on October 14, 2026. This position will be open for at least 3 days.

We value collaboration and believe that in-person interactions are crucial for both our culture and client delivery. We empower employees with our hybrid working policy, allowing them to split their work week between Jacobs offices/projects and remote locations enabling them to deliver their best work.

Your application experience is important to us, and we’re keen to adapt to make every interaction even better. If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team via Careers Support.