Principal Environmental Engineer / Geologist Location: Southern California (Hybrid) Employment Type: Full‑Time Experience Level: Senior / Principal About the Role We are seeking a seasoned Principal Environmental Engineer or Geologist to join a well‑established environmental consulting practice serving public and private sector clients across California and the western United States. This Senior leadership position is ideal for a technically strong professional who thrives in client-facing roles, delivers high‑quality work, and helps guide the strategic growth of environmental services. The successful candidate will play a key role in project delivery, client relationship management, regulatory strategy, and mentorship of technical staff. Key Responsibilities + Serve as Principal‑in‑Charge or Project Manager on complex environmental projects + Lead and oversee Phase I and Phase II ESAs, soil and groundwater investigations, remedial investigations, and corrective action programs + Prepare, review, and approve technical reports, work plans, and regulatory submittals + Interact with regulatory agencies at the local, state, and federal levels + Maintain and grow relationships with clients, including developers, municipalities, attorneys, lenders, and industrial clients + Support proposal development, project scoping, budgeting, and scheduling + Provide mentorship and technical guidance to engineers, geologists, and junior staff + Contribute to service line and business growth initiatives Required Qualifications + Bachelor’s degree in Environmental Engineering, Geology, Hydrogeology, or a related field (Master’s preferred) + Professional Engineer (PE) and/or Professional Geologist (PG) license in California (required) + 12–20+ years of progressive experience in environmental consulting + Strong working knowledge of: + CERCLA and California environmental regulations + Site assessment and remediation practices + Vapor intrusion, soil and groundwater remediation technologies + Proven experience managing clients, teams, and complex projects + Excellent written, verbal, and organizational skills Preferred Experience + Brownfields redevelopment and due diligence support + Experience with regulatory agencies such as DTSC and RWQCB + Business development or client account leadership + Multi-site or portfolio project management What We Offer + Competitive salary and performance-based incentives + Leadership role with autonomy and influence + Collaborative, technically respected team environment + Flexible hybrid work arrangement + Comprehensive benefits package including health insurance, PTO, and retirement plan Why Join? This is an opportunity to step into a high‑impact leadership role within a respected environmental consulting practice that values technical excellence, professional integrity, and long‑term client relationships. You’ll work on meaningful projects while shaping the future direction of the firm. Job Type & Location This is a Permanent position based out of Irvine, CA. Pay and Benefits The pay range for this position is $150000.00 - $200000.00/yr. Core Employee Benefits Insurance & Wellness: Typical packages in this industry and region include comprehensive medical, pharmacy, dental, vision, and life insurance. Disability Coverage: Long-term disability insurance is often part of the standard offering. Paid Time Off (PTO): Employees are provided with a paid time off plan for vacations and personal needs. Professional Development: The company emphasizes staff growth through initiatives like the ASCE Mentorship Program, which supports engineers in their career progression. Retirement Planning: While specific match details are not public for the environmental division, standard industry packages typically include a retirement savings plan (such as a 401(k)). Workplace & Amenities Professional Culture: The firm prioritizes a respectful and mutually supportive culture that balances professional commitments with personal life. Office Accessibility: Facilities include wheelchair-accessible entrances and parking lots. On-site Parking: Employees have access to dedicated on-site parking at their locations. Workplace Type This is a fully onsite position in Irvine,CA. Application Deadline This position is anticipated to close on Feb 13, 2026. About Actalent Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 30,000 consultants and more than 4,500 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing due to a disability, please email actalentaccommodation@actalentservices.com (%20actalentaccommodation@actalentservices.com) for other accommodation options.