Senior Water & Wastewater Process Engineer, PE

Skills Alliance; Washington; Hybrid; USD 120,000 - 180,000; Full time

Job summary

Skills Alliance in Washington State seeks a Senior Process Engineer (PE) to lead water and wastewater treatment design projects from concept through commissioning. You will develop PFDs, P&IDs, mass balances, and equipment specs, ensuring high performance and regulatory compliance.

The role requires 8+ years of experience, an active PE license, and strong client-facing communication. You will mentor junior engineers and support proposals while delivering technically impactful solutions.

Qualifications

• Active Professional Engineer (PE) license required.
• 8+ years of water and wastewater treatment engineering experience.
• Bachelor's degree in an engineering discipline (Chemical/Environmental/Civil).
• Strong communication and client-facing skills.
• Experience designing and implementing complex treatment solutions.

Responsibilities

• Lead process design for water and wastewater projects from concept to commissioning.
• Develop PFDs, P&IDs, mass balances, equipment specs, and system designs.
• Conduct process evaluations, pilot studies, troubleshooting, and optimization.
• Support project teams through detailed engineering, startup, and operations.
• Interface with clients, consultants, regulators, and internal stakeholders.
• Review and approve engineering calculations, technical reports, and design documentation.
• Provide technical leadership and mentorship to junior engineers.
• Support business development with proposals, presentations, and client meetings.
• Ensure compliance with regulations, standards, and permitting requirements.

Skills

Process design

Process optimization

Client-facing communication

Technical leadership

Pilot studies

Education

Bachelor's degree in Chemical Engineering

Bachelor's degree in Environmental Engineering

Bachelor's degree in Civil Engineering

Job description

Skills Alliance in Washington State seeks a Senior Process Engineer (PE) to lead water and wastewater treatment design projects from concept through commissioning. You will develop PFDs, P&IDs, mass balances, and equipment specs, ensuring high performance and regulatory compliance.

The role requires 8+ years of experience, an active PE license, and strong client-facing communication. You will mentor junior engineers and support proposals while delivering technically impactful solutions.