Senior Remediation Engineer at CSG Talent

• Job Location Long Beach, CA
• Seniority Mid-Senior Level
• Type Full-time

Description

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