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Water​/Wastewater Engineer; Professional to Senior

Job in Walnut Creek, Contra Costa County, California, 94598, USA
Listing for: Carollo Engineers, Inc.
Full Time position
Listed on 2026-05-20
Job specializations:
  • Engineering
    Environmental Engineer, Civil Engineering, Water Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 190000 USD Yearly USD 80000.00 190000.00 YEAR
Job Description & How to Apply Below
Position: Water/Wastewater Engineer (Professional to Senior)

Overview

Carollo Engineers is a leading engineering firm dedicated exclusively to water. For over 90 years, we've specialized in the planning, design, and construction of water, wastewater, stormwater, and reuse facilities, bringing innovative and sustainable solutions to the water sector's most complex challenges.

We work with water agencies, municipalities, utilities, research organizations, and private companies across various industries, including technology, manufacturing, and beyond. These clients choose Carollo because we employ some of the most knowledgeable and experienced professionals in the world. When you join our team, you'll work alongside industry leaders who are advancing the science of water, protecting public health, and building resilient communities.

Carollo's vision is to be the best water consulting firm and the best place for you to build your career. If you're passionate about making a difference in this critical field, we invite you to explore a career with Carollo.

Responsibilities

Responsibilities (vary dependent upon hiring level):

EIT:

  • Serve as an engineer on the planning, design, construction, and/or commissioning of water and wastewater treatment projects of various sizes
  • Perform data entry and analysis
  • Perform system modeling, process calculations, and hydraulic calculations to size and select facilities
  • Prepare cost estimates
  • Perform permitting and alternatives analysis
  • Prepare technical memoranda, reports, plans and specifications, and other deliverables
  • Perform engineering services during construction, including but not limited to reviewing contractor submittals for conformance with contract plans and specifications and evaluating requests for information
  • Participate in field activities, such as site visits, overseeing field work, and pilot testing
  • Travel may be required

P.E. through Senior Engineer additional responsibilities could include:

  • Serve as the technical lead on the planning, design, construction, and/or commissioning of water and wastewater treatment projects of various sizes (small, medium, and large)
  • May serve as project manager on small to medium sized projects and would assume all project manager responsibilities
  • Participate in field activities, such as site visits and overseeing field work
  • Provide on-the-job training and mentoring of project staff and entry to mid-level engineers
  • Maintain a culture of effective communication among project teams, clients, partners, and other stakeholders
  • Perform engineering services during construction, including but not limited to reviewing contractor submittals for conformance with contract plans and specifications and evaluating requests for information
  • Develop and maintain relationships with existing clients
  • Partner with local business development teams to identify project opportunities and assist with business development activities, including, but not limited to proposal preparation, scope and fee preparation, and interview participation
  • Coordinate the work of other engineering disciplines, designers, modelers, technicians, and others who assist in specific assignments
  • Assist with proposal preparation, including development of project scopes and fees
  • Participate in field activities, such as site visits, overseeing field work, and pilot testing
  • Travel may be required
Qualifications

Qualifications (vary depending on hiring level):

  • Degree in Civil or Environmental Engineering or related engineering field
  • EIT Certification or passed FE exam or Registration as a Professional Engineer for higher level engineers
  • Experience delivering and managing water/wastewater treatment projects with partial responsibility for budget, schedule, contractual obligations, and quality standards for higher level engineers
  • Ability to deliver high quality services within budget and schedule constraints
  • Ability to apply critical thinking, analysis, and innovative techniques to develop options and recommendations to solve technical problems
  • Strong verbal and written communication skills
  • Ability to communicate effectively with clients and project teams
  • Work well in a team environment
  • Highly motivated and self-starting
  • Proficient in MS Word, Outlook, Excel, and Power Point
Preferred Qualifications

Education and Experience (vary depending on hiring level):

  • Degree in Civil or Environmental Engineering
  • Engineer-in-Training: 2-5 years of experience in planning, design, and/or construction of water/wastewater treatment projects
  • Mid level Engineer: 5-12 years of experience
  • Senior level Engineer: 12+ years of experience
Compensation Range

$80,000 to $190,000 annually. Range varies dependent upon hiring level. This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting. We may ultimately pay more or less than the posted range, and the range may be modified in the future. An employee’s pay within the salary range will be based on several factors including, but limited to, relevant education, qualifications, certifications, experience, skills,…

Position Requirements
10+ Years work experience
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