Senior Technical Project Manager – Chlorinated Solvent Remediation

Apex Companies, LLC; Pleasant Hill (CA); On-site; USD 175,000 - 200,000; Full time

Benefits offered by this job

Medical and dental coverage

Life, short- and long-term disability

401k match and tuition assistance

Cross-training and diverse project mix

Performance-based bonuses

National firm with 70+ locations

Job summary

Apex Companies, LLC is seeking a Senior Technical Project Manager to lead complex environmental investigation, remediation, and compliance projects across multiple sites in California. You will guide technical teams, manage client relationships, and drive project delivery from proposal to closure.

The role emphasizes leadership in sites impacted by chlorinated solvents, with responsibilities spanning technical investigations, risk assessments, RI/FS, and regulatory programs.

Qualifications

• Bachelor-level degree required in a relevant engineering/science field.
• 12+ years of environmental consulting experience with 7+ years in remediation project leadership.
• Experience managing projects from proposal through closure and budgeting.

Responsibilities

• Lead large-scale environmental remediation programs including soil, groundwater, and vapor intrusion.
• Develop scopes, schedules, budgets, and safety plans; monitor financial performance.
• Direct multidisciplinary teams and coordinate subcontractors and vendors.
• Develop and present technical findings to clients and stakeholders.

Skills

Project management

Technical leadership

Client management

Regulatory expertise

Education

BS in Environmental Engineering, Civil Engineering, Geological Engineering, Hydrogeology, Geology, or related field

Job description

Senior Technical Project Manager – Chlorinated Solvent Remediation

Pleasant Hill, CA; Signal Hill, CA; Thousand Oaks, CA

Are you driven to grow, lead, and make a meaningful impact? At Apex, we’re building more than a consulting and engineering firm—we’re creating a place where your career accelerates, your contributions matter, and your potential is fully realized. We believe your growth is our growth, which is why we invest in your development at every stage of your career. Here, you’ll work on projects that shape communities, protect the environment, and create lasting impact, all while being empowered with the autonomy and flexibility to do your best work.

Fueled by high-quality delivery, exceptional client retention, and strategic acquisitions, Apex Companies continues to rank among the fastest-growing firms in the AEC industry, recently recognized by the Zweig Group for our industry-leading growth. Our success is grounded in strong leadership, a collaborative culture, and a shared commitment to delivering exceptional outcomes.

As we continue to expand, we're looking for high-performing professionals who are ready to lead, collaborate, innovate, and create impact. At Apex, you help shape what's next. When we succeed together, we share in that success. All Apex positions are eligible for annual bonus opportunities, reinforcing our commitment to recognizing and rewarding meaningful contributions that drive our collective growth.

The Senior Technical Project Manager (PM) will lead and manage complex environmental investigation, remediation, and compliance projects involving chlorinated solvent impacts in soil, groundwater, sediment, soil vapor, and indoor air. The role requires strong technical leadership, client management, project delivery, staff development, and business development capabilities. Experience with large industrial, aerospace, manufacturing, military, and brownfield remediation programs is highly desirable.

Key Responsibilities

Project and Program Management

• Manage large-scale environmental remediation projects from proposal through closure.
• Develop project scopes, schedules, budgets, and health and safety plans.
• Lead multidisciplinary teams of geologists, engineers, hydrogeologists, risk assessors, and environmental scientists.
• Monitor project financial performance, including revenue, profitability, utilization, and forecasting.
• Coordinate subcontractors, laboratories, drilling contractors, and remediation vendors.
• Maintain quality assurance and quality control standards.

Technical Leadership

• Serve as a technical lead for sites impacted by:
  • PCE (Tetrachloroethylene)
  • TCE (Trichloroethylene)
  • cis-1,2-DCE
  • Vinyl Chloride
  • Other chlorinated VOCs
• Design and oversee:
  • Site investigations
  • Groundwater characterization
  • Soil vapor intrusion assessments
  • Human health and ecological risk assessments
  • Remedial investigations/feasibility studies (RI/FS)
  • Corrective action programs
• Evaluate and implement remediation technologies such as:
  • In situ chemical reduction (ISCR)
  • In situ chemical oxidation (ISCO)
  • Enhanced reductive dechlorination (ERD)
  • Thermal remediation
  • Soil vapor extraction (SVE)
  • Dual-phase extraction (DPE)
  • Air sparging
  • Monitored natural attenuation (MNA)

Client Relationship Management

• Act as primary client contact for key accounts.
• Support strategic planning with industrial, aerospace, petroleum, manufacturing, and government clients.
• Prepare and present technical findings to clients, regulators, and stakeholders.
• Maintain long-term client relationships while identifying opportunities for additional services.

Business Development

• Lead proposal preparation and pricing.
• Support capture planning and opportunity pursuit.
• Identify new clients and expand existing accounts.
• Participate in industry organizations and conferences.

Regulatory Expertise

• EPA CERCLA/Superfund programs
• RCRA Corrective Action
• State cleanup programs
• UST and industrial facility closure programs
• California DTSC and Regional Water Board programs

Qualifications

• BS in Environmental Engineering, Civil Engineering, Geological Engineering, Hydrogeology, Geology, or related field.
• 12+ years of environmental consulting experience.
• 7+ years managing complex remediation projects.
• Demonstrated success managing projects exceeding $500K to $5M+ annually.
• Significant chlorinated solvent investigation and remediation experience.

Why you'll love working for us:

• Company-subsidized medical and dental.
• Company-paid life, short, and long-term disability.
• 401k match, tuition assistance, and more.
• Cross-training and the ability to work on a variety of projects.
• Performance-based bonuses or other incentives.
• Working with the best and brightest in the industry.
• 2,000+ employee national firm with 70+ locations across the US.

Apex Job Title: Sr Project Manager

#LI-BS1

Annual Expected Pay Range

$175,000 - $200,000 USD

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