Senior Water​/Wastewater Engineer

Senior Water/Wastewater Engineer – Merrick & Company

Location:

Colorado / Texas

Are you ready to lead transformative water infrastructure projects that serve communities and protect vital resources? Merrick is seeking a Senior Engineer to join our growing Water Group in Colorado and Texas. This is your opportunity to work on innovative water, wastewater, and reuse systems that make a real difference. Typical salary range for this position is $ - $. Base pay may vary based on experience.

• Work on cutting‑edge water resource projects that shape the future of infrastructure.
• Collaborate with a passionate team dedicated to community, sustainability, and recreation.
• Enjoy professional growth in a mid‑sized, employee‑owned firm that values technical excellence and work‑life balance.
• Be part of a network of 120+ water professionals committed to engineering excellence and stewardship.

• Perform assignments in the analysis and design of water and wastewater treatment facilities, including advanced treatment/nutrient removal processes using Bio Win process modeling software; experienced also with water and sewer pipelines, pump stations and related infrastructure.
• Prepare and review working drawings, details, layouts, cost estimates, studies, reports and work products.
• Provide construction support and oversight including administration, limited inspection, and start‑up/operations support for treatment plants; review designs for conformance of design standards and support municipal water utility operations and maintenance teams.
• Perform independent design tasks, review others’ designs, prepare bid documents, and organize all drawings, reports, calculations, and project deliverables with limited supervision.
• Direct and manage a team of design engineers and/or technicians on water and wastewater projects.
• Become knowledgeable of Merrick procedures, understand them, and apply them when required.
• Make sound engineering decisions, exercise initiative, judgment and knowledge commensurate with the responsibilities.
• Interface with clients and government agencies; lead project progress meetings, present projects, and provide clear written communications.
• Additional duties may involve project management for projects.
• Some travel may be required.

• Bachelor’s degree in Civil, Chemical or Environmental Engineering from an A.B.E.T. Accredited School.
• Minimum twelve (12) years of experience in the design and construction oversight of water and/or wastewater infrastructure facilities and projects.
• Experience working on Wastewater projects.
• Valid driver’s license, good driving record, and insurable under Merrick’s insurance carrier.
• Eligible to work in the United States without sponsorship.

• P.E. (Professional Engineer) State of Colorado and/or Texas.

• Master’s degree with a focus on treatment processes.
• Experience with:
  • Water/sewer modeling
  • Bio Win modeling
  • Advanced treatment/nutrient removal
  • GIS systems
• Public works experience with local, state, or federal agencies.
• Local candidates preferred (relocation available for the right fit).

• Employee Owned – all eligible U.S. employees have an Employee Stock Ownership Account.
• Robust Employee Referral Program.
• Annual performance and compensation reviews.
• Professional Training and Development.
• Employee Recognition Awards.
• Peer Mentor Program.
• And much more!

• Apply online only. No e‑mail, hard copy or third‑party resumes accepted.
• At Merrick, every resume is carefully reviewed by our team of experienced human recruiters—never by AI. We are committed to a fully human‑centered hiring process, ensuring each candidate receives thoughtful, personalized attention at every stage.
• Merrick & Company offers a competitive compensation and benefits package which includes health insurance, dental and vision coverage, 401(k), and paid time off (PTO).
• Merrick is an Equal Opportunity Employer, including disability/vets.
• Employment with Merrick is contingent upon completion of a pre‑employment background check, MVR check, and drug screen.

Mid‑Senior level

Full‑time

Design Services