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Salary
≈ $91k – $172k per year (Estimated)
Location
In office (Phoenix)
Seniority
Senior · 10+ years exp
Visa
H-1B filings in 12 months: 20 · green card filings: 6

Confirmed on the employer's own hiring board on Nov 15, 2026. First seen by Alion on Sep 28, 2026.

Overview
Company
Impact
Profile match
Carollo Engineers is an environmental engineering firm headquartered in Walnut Creek, California, that works exclusively on water, planning and designing water, wastewater, stormwater and water reuse facilities. Founded in 1933, the employee-owned firm serves water agencies, municipalities, utilities and industrial clients from dozens of offices across the US and Canada, including Phoenix, Orlando, Dallas, Seattle, Tampa and Burnaby. It hires civil, environmental and water and wastewater engineers at entry, professional and senior levels, field engineers, stormwater specialists, project managers and engineering interns.

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

  • Design of water, wastewater, and reuse treatment facilities
  • Plans, schedules, and conducts engineering work on projects of small to medium sizes
  • Responsible for budget, schedule and quality standards
  • Has full technical responsibility for interpreting, organizing, executing, and coordinating assignments
  • Responsible for acting independently on technical matters pertaining to the water reuse field
  • Carries out complex assignments requiring the development of new or improved techniques or procedures to create new or refined equipment, material, processes or methods
  • Assists in proposal preparation and interviews and may be included in contract negotiations with clients after selection
  • Develops relationships with existing clients and has responsibility for client maintenance at staff level on existing projects
  • Works closely with subconsultants on projects
  • Active in professional associations, including attendance and participation in local, regional, and national conventions
  • Travel required when requested

Qualifications

  • Bachelor's degree in Civil, Environmental, or Chemical Engineering
  • 10-15 years of design experience in the field of environmental consulting engineering with an emphasis in hydraulics, physical, chemical, and biological treatment processes and treatment plant design
  • Registration as a Professional Engineer
  • Must have demonstrated experience with managing and designing medium sized projects with full responsibility for budget, schedule, contractual obligations and quality standards
  • Experience designing treatment plants, including development of conceptual/preliminary designs and detailed design document preparation
  • Ability to communicate effectively with clients and project team
  • Deliver high quality services within budget and schedule constraints
  • Experience working with wastewater collection systems and water and reclaimed water transmission/distribution projects
  • Proficient in MS Word and Excel

Preferred Qualifications

  • Master's degree in Civil or Environmental Engineering

Other Compensation and Benefits

Carollo is committed to providing employees with a competitive, comprehensive benefits program that provides the care 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 and discount programs. 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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