Senior PE Process Engineer Water / Wastewater Actalent - 3.5 Orange, CA Job Details Full-time $150,000 - $220,000 a year 9 hours ago Benefits Profit sharing Paid holidays Disability insurance Health insurance Dental insurance 401(k) Paid time off Vision insurance 401(k) matching Opportunities for advancement Flexible schedule Qualifications Water treatment systems Project engineering Managing projects in an engineering role Process design Team development Managing engineering teams Mentoring Leading team collaboration initiatives Managing projects Professional Engineer Project stakeholder communication Full Job Description Senior Process Engineer - Water/Wastewater Orange County, CA | On-Site | Direct Hire Are you a Senior engineer who still enjoys solving technical problems instead of spending all day in meetings? An established environmental and engineering consulting firm is expanding its engineering team and seeking a Senior Process Engineer to support complex industrial and municipal wastewater projects throughout Southern California. This position offers a unique blend of hands-on technical work, project leadership, mentoring, and long-term career growth. This is an opportunity to step into a highly visible role where your technical expertise will immediately impact active projects, team development, and the future growth of an expanding engineering practice. The organization is looking for a strong technical leader who can contribute today while helping shape the next generation of engineering talent. What You'll Do Lead and execute industrial and municipal wastewater projects from planning through delivery Perform wastewater process and systems design Review engineering documents, drawings, reports, and specifications Provide technical leadership and QA/QC oversight Review, approve, and stamp engineering deliverables as appropriate Mentor engineers and designers within a collaborative engineering team Support project planning, permitting, troubleshooting, and system optimization Interface with clients, regulatory agencies, and project stakeholders Help build engineering capacity and strengthen technical capabilities across the organization Primary project focus includes: Industrial wastewater treatment Municipal wastewater treatment Wastewater process design Collection and conveyance systems Pump stations Water reuse Treatment and storage facilities Design-build projects What Makes This Opportunity Different? Immediate impact on active engineering projects High-visibility technical leadership role Opportunity to mentor and develop staff Direct collaboration with Senior leadership Strong backlog of industrial and municipal wastewater work Growth path toward broader engineering leadership responsibilities Smaller company environment where ideas are heard and contributions are visible Flexible work hours while maintaining a collaborative office environment What We're Looking For Required Active Professional Engineer (PE) license Experience supporting wastewater systems and process design Industrial and/or municipal wastewater project experience Ability to review technical deliverables and provide engineering oversight Experience leading projects and mentoring technical staff Strong communication and client-facing skills Ability to work onsite in Orange County, California Preferred California PE Industrial wastewater treatment expertise Process engineering background Design-build project experience Regulatory compliance and permitting experience Experience with water reuse, conveyance, pretreatment, or pump station projects Remediation experience (particularly for Civil PE candidates) Compensation & Benefits Competitive base salary Performance-based bonus opportunities Medical, dental, and vision coverage Life and long-term disability insurance Paid holidays and PTO 401(k) with employer match Profit-sharing opportunities Compensation is commensurate with experience, technical expertise, and wastewater process engineering depth. Ideal Candidate Profile The strongest candidates will bring a combination of: Deep wastewater process engineering expertise Hands-on technical capability Project leadership experience Mentorship and team-development skills A desire to remain technically involved while increasing their influence across projects and people This role is best suited for engineers who enjoy solving complex technical challenges, supporting project teams, and helping build the future of an engineering organization. Job Type & Location This is a Permanent position based out of Orange, CA. Pay and Benefits The pay range for this position is $150000.00 - $220000.00/yr. Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors. Health insurance 401(k) matching Paid time off Vision insurance Dental insurance Disability insurance Profit sharing Paid holidays Opportunities for advancement

• Medical
• Dental
• Life/Long Term Disability
• 10 Paid Holidays
• 401(k) Retirement Plan
• 5 Sick Days
• 2 Weeks Vacation Benefits offered:
• Medical, Dental, Vision
• Life/Long Term Disability
• Generous PTO policy
• 10 Paid Holidays
• 401(k) with match
• Profit Sharing Plan
• Discretionary Bonus Program Workplace Type This is a fully onsite position in Orange,CA.

Application Deadline This position is anticipated to close on Sep 4, 2026. About Actalent Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 20,000 consultants and 5,000 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. We are proud to be an Engineering News-Record (ENR) Top 500 Design Firm for our engineering design services and a ClearlyRated Best of Staffing® winner for both client and talent service. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email for other accommodation options.

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Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

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It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.