Senior Water Treatment PM & Process Engineer

Tetra Tech; California (MO); On-site; USD 126,000 - 180,000; Full time

Benefits offered by this job

Comprehensive benefits

Merit-based rewards

Work‑life balance

Collaborative team culture

Learning and development opportunities

Job summary

Tetra Tech’s Irvine, CA Water Team seeks a Process Engineer — Project Manager to lead design and delivery of advanced water treatment projects. You’ll guide multidisciplinary teams from concept through construction and expand client relationships in Southern California. PE licensure and strong leadership are essential.

You will mentor engineers, support proposals, and ensure compliance with public agency requirements while advancing sustainable, resilient water infrastructure.

Qualifications

• Bachelor's degree in Civil, Environmental, or Mechanical Engineering.
• PE license in California or ability to obtain within six months.
• 10+ years in water/wastewater design and project delivery.
• PFAS and advanced treatment experience for municipal systems.
• Proven project management including cost control, scheduling, and coordination.

Responsibilities

• Lead design‑build and design‑bid‑build municipal water projects.
• Oversee scopes, budgets, schedules, and technical deliverables.
• Collaborate with public agencies and utilities to guide decisions.
• Prepare engineering reports, design packages, and construction docs.
• Mentor engineers and support business development.
• Ensure quality, safety, and regulatory compliance.

Skills

PFAS expertise

Project management

Client relations

Leadership

Communication

MS Project

Bluebeam

MS Office

Education

Bachelor's degree in Civil, Environmental, or Mechanical Engineering

Master's degree preferred

Tools

Microsoft Project

Bluebeam

Excel

Process modeling software

Job description

Tetra Tech’s Irvine, CA Water Team seeks a Process Engineer — Project Manager to lead design and delivery of advanced water treatment projects. You’ll guide multidisciplinary teams from concept through construction and expand client relationships in Southern California. PE licensure and strong leadership are essential.

You will mentor engineers, support proposals, and ensure compliance with public agency requirements while advancing sustainable, resilient water infrastructure.