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Senior Wastewater Project Engineer/Manager

Hazen and Sawyer
Meridian, ID Full Time
POSTED ON 4/1/2026
AVAILABLE BEFORE 6/1/2026

Hazen and Sawyer is seeking a Senior Wastewater Project Engineer/Manager with 10-20 years of experience in planning, design, permitting and construction of wastewater projects. The position will involve managing and leading teams to complete high quality project deliverables. The position will lead to an increasing level of client development and management responsibilities, commensurate with experience, and supported by our regional offices and firm-wide technical resources.  

Why Hazen and Sawyer: 

  • Founded in 1951 by the son of Allen Hazen (developer of the Hazen-Williams equation), we are an employee-owned company with a singular focus on "all things water." 
  • Our work includes planning, design, and oversight of construction of environmental infrastructure – for water, wastewater, and stormwater management. 
  • We foster a work environment low on bureaucracy and high in creativity. 
We recruit talented professionals, provide them with challenging, interesting, and creative assignments, and furnish them with the tools they need to succeed. 
  • We currently have over 2,000 employees in 70 offices throughout the United States, Latin America, Canada, and the UK. 
  • A flexible hybrid work schedule supports today's busy professionals.  

Key Responsibilities: 

  • Manage, lead, support, and/or carry out planning and design of wastewater projects. 
  • Develop technical treatment strategies, select treatment processes, and develop process design criteria.
  • Perform detailed technical engineering analysis. 
  • Prepare construction documents and support needs for construction management/commissioning.
  • Prepare technical reports.
  • Coordinate with internal technical specialists in all practice areas and discipline design professionals for project delivery.
  • Supervise, mentor, teach, and train staff. 
  • Collaborate with multi-disciplinary teams on both regional and national levels. 
  • Lead and/or participate in business development activities that include client development, project pursuits, and project interviews 
  • Develop scope, schedule, and budget for successful pursuits.
  • Help grow a local and regional team. 

Required Qualifications: 

  • 10-20 years of experience in Wastewater Engineering
  • B.S. degree in Civil, Environmental, or Biological Engineering
  • Detailed understanding of local, state, and federal regulations.
  • Experience managing interdisciplinary teams to effectively meet the client’s needs
  • Experience in successfully delivering projects with collaborative, multi-disciplinary teams 
  • Experience in planning and design of wastewater facilities
  • Detailed understanding related to sizing wastewater treatment processes
  • Project management experience
  • Excellent writing skills
  • Excellent communication and interpersonal skills, and capable of interacting effectively with staff, clients, and regulatory agencies
  • Self-starter with attention to detail
  • Strong organizational skills
  • Proficiency in all MS Office based computer software
  • PE license is required (ability to obtain reciprocity within six months of employment) 
Preferred Qualifications: 
  • Advanced degree (Master’s or Doctorate) in Civil, Environmental, or Biological Engineering or related field.
  • Experience managing projects with fees of $2M or more
  • Experience negotiating multiple contracts with clients
  • Experience recruiting staff
  • Experience in client management/development  
  • Experience in managing project pursuits
What We Offer: 
  • Comprehensive health benefits (medical, dental, vision, and prescription plans) 
  • Pre-tax flexible spending plans for medical, dependent care, and transportation 
  • Short and long-term disability, and employer paid life insurance 
  • Paid holidays, floating holidays, and paid time off (PTO) 
  • Employer-contributed 401(k) plan and additional financial planning support 
  • Professional growth opportunities, including tuition reimbursement, in-house training, and incentives for professional registration and professional organization memberships 
  • Starting pay range for this position depends on skills, experience, education and geographical location 

Salary.com Estimation for Senior Wastewater Project Engineer/Manager in Meridian, ID
$152,627 to $188,960
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