Senior Remediation Engineer

A leading employee-owned environmental consulting firm is seeking a highly experienced Senior Groundwater Remediation Engineer to join its Southern California team. This is a senior-level technical and leadership role focused on complex groundwater remediation projects, regulatory negotiations, and long-term site closure strategies.

This position is ideal for an engineer who wants to operate as a technical authority, lead high-impact remediation work, and mentor engineering teams while collaborating closely with regulators, water districts, clients, and legal counsel.

Responsibilities

• Lead the assessment, design, construction, optimization, and long-term performance evaluation of groundwater remediation systems
• Oversee remediation design/build projects from conceptual design through installation, commissioning, and O&M
• Provide technical leadership for rehabilitation and optimization of existing systems, including pump-and-treat and advanced treatment technologies
• Serve as the primary liaison for regulatory agency negotiations, ensuring compliant and defensible remediation strategies
• Collaborate with Southern California water districts, regulatory agencies, and project attorneys
• Develop and implement long-term site closure and exit strategies
• Lead and mentor mid-level engineers and guide multidisciplinary project teams
• Prepare technical reports, design packages, schedules, cost estimates, and system performance evaluations
• Support clients and legal teams with expert technical documentation and analysis

Qualifications

• 10-20 years of experience in groundwater remediation engineering
• Strong expertise in remediation system design, construction, optimization, and troubleshooting
• Proven experience leading remediation design/build projects
• Hands-on experience with system installation, construction oversight, and O&M
• Demonstrated success in regulatory agency negotiations at the state and/or regional level
• Experience working with Southern California water districts and local regulatory frameworks
• Experience with ion exchange treatment systems, including multi-contaminant applications
• Subject-matter expertise in perchlorate remediation technologies
• Experience collaborating with attorneys and legal teams on regulatory or litigation-support matters
• Ability to lead teams and manage complex project deliverables

Why This Role

• Employee-owned firm with long-term upside
• Senior technical authority position with real influence
• High-impact, non-routine remediation work
• Strong autonomy and leadership runway
• Purpose-driven environmental work with visible results