Senior Process Engineer- Water Treatment (Membrane)

GHD Group Pty Ltd • Irvine, CA

2d • $108,000 - $180,000 • Hybrid

About The Position

GHD is seeking a Senior Process Engineer to join their water treatment team based out of Southern California. This role will focus on the design, optimization, and troubleshooting of advanced membrane filtration systems (RO, NF, UF) for municipal and industrial applications, supporting work across GHD’s West Region. The group specializes in water and wastewater treatment, asset management, operations support, and program management for public and private clients. The Senior Process Engineer will provide design and management support for membrane water treatment projects, acting as a key member of the team responsible for delivering sophisticated and innovative projects, mentoring technicians and other engineers, and growing their competence towards becoming a design leader. The ideal candidate will possess strong leadership and demonstrated engineering skills in membrane filtration technology, be self-motivated, and value building credible relationships with clients and the community.

Requirements

• Proven experience in leading the design, optimization, and troubleshooting of advanced membrane filtration systems (such as Reverse Osmosis, Nanofiltration, Ultrafiltration, and Membrane Bioreactors) for municipal and industrial applications.
• Deep knowledge of water chemistry, membrane fouling mechanisms, normalization software and producing mass/energy balances for membrane separation units.
• Ability to select appropriate membrane materials, module configurations, and pretreatment/post-treatment processes to maximize recovery rates and energy efficiency.
• Ability to excel in a multidisciplinary team environment as well as independently. Lead multidisciplinary teams, coordinate with external clients or vendors, and act as the technical specialist during safety reviews.
• Demonstrated ability of effective time management, handling priorities, and working in a fast-paced environment.
• Ability to provide hands-on technical support during plant startup, performance testing, root-cause investigations, and ongoing operational troubleshooting.
• Attention to detail and ability to complete diverse assignments.
• Effective written and verbal communication skills.
• Minimum 8 years of experience
• Professional Engineer (PE) license in California, or the ability to obtain within 1 year.

Nice To Haves

• Master’s degree in Chemical, Environmental, or Process Engineering

Responsibilities

• Collaborate with fellow engineers on a wide range of projects.
• Participate in the planning, design and construction oversight of membrane water treatment related infrastructure projects.
• Develop technical reports and proposals.
• Guide, train, develop and mentor junior and intermediate process engineers.
• Work with clients for planning purposes, providing updates and building positive relationships.
• Interact with clients, suppliers, and regulators to help create successful concepts.

Benefits

• Equal employment opportunities to all qualified employees and applicants without regard to race, creed, religion, national origin, citizenship, color, sex, sexual orientation, gender identity, age, disability, marital status or veteran status.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior