Demo

Wastewater Process Engineer and Modeler

Carollo Engineers Inc.
Phoenix, AZ Full Time
POSTED ON 3/2/2026
AVAILABLE BEFORE 7/8/2027

Overview

Carollo Engineers is a nationally recognized environmental engineering firm that specializes in the planning, design, and construction of water and wastewater facilities. We are seeking a Wastewater Process Engineer and Modeler to join our team and assist with numerous nutrient removal and other projects across the country.

Responsibilities

  • Perform wastewater process modeling, designs, conceptual designs, facility layouts and prepare reports, plans, and specifications under direction of principle engineers and technologists
  • Independently evaluate and apply engineering techniques, procedures, and criteria using judgment in making adaptations and modifications
  • Evaluate and analyze numerous treatment technologies, investigations, surveys, structures, or equipment with basic and complex features
  • Project engineering for wastewater treatment and collection systems
  • Testing materials and processes
  • Report and technical memoranda writing
  • Wastewater process modeling and studies
  • Research investigations and piloting
  • Present work products to clients and at local and national conferences where appropriate
  • May supervise or coordinate the work of technicians, drafters, and others who assist in specific assignments

Qualifications

  • Demonstrated ability in biological, physical, chemical process modeling, hydraulics, and principals of wastewater treatment plant design
  • Ability to communicate effectively with clients and project team and deliver high quality services within budget and schedule constraints.
  • Familiar with codes and regulations related to water pollution control
  • Knowledge of structural and geotechnical design concepts, analytical laboratory techniques, and engineering methodology
  • Master’s degree in civil, environmental, or chemical engineering
  • 5-10 years of wastewater process and design experience in the field of environmental engineering with an emphasis in hydraulics, physical, chemical, and biological treatment processes, and treatment plant design.

 

Preferred Qualifications

  • Doctorate degree in civil or environmental engineering
  • Wastewater process modeling software including BioWin
  • Publication of peer-reviewed papers
  • Engineer in Training Certification or Passed FE exam

Pay Range

An employee’s pay within the salary range will be based on several factors including, but limited to, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs.

Other Compensation and Benefits

Carollo is committed to providing employees with a competitive, comprehensive benefits program that provides the support employees and their families need to lead healthy, productive lives. Carollo’s benefits package includes paid time off and holidays, comprehensive health insurance coverage, pre-tax savings account options for healthcare, dependent care and commuter expenses, disability insurance and life insurance options for you and your dependents. We also offer free Caregiver Support, Travel Assistance, counseling services, discount programs, and a Lifestyle Reimbursement Account. Other compensation that may be available includes: 401(k) company contribution matching, tuition reimbursement, discretionary bonuses, career advancement bonuses, professional registration bonuses, employee referral bonuses, and compensatory time for exempt employees. Flexible work arrangements may also be available.  Eligibility for benefits varies based on employment status.

 

 

 

 

 

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Salary.com Estimation for Wastewater Process Engineer and Modeler in Phoenix, AZ
$86,793 to $102,768
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