Principal Engineering Geologist

Geo Soils Inc is a geotechnical consulting company headquartered in Carlsbad, California, serving clients across the region with specialized geotechnical and engineering geology services. The firm focuses on providing practical, science-driven solutions for development, infrastructure, and environmental projects. Team members collaborate closely with public agencies, private developers, engineers, and design professionals. Geo Soils Inc offers opportunities to work on diverse projects, apply advanced technical skills, and contribute to safe, sustainable site development.

The organization values professionalism, technical excellence, and clear communication in all client engagements.

This full-time, on-site Principal Engineering Geologist role is based in Carlsbad, CA. The Principal Engineering Geologist will lead and oversee site investigations, including planning and executing field work such as subsurface exploration, mapping, preliminary investigations, grading, logging, and sampling. Daily responsibilities include interpreting geological and geotechnical data, developing subsurface models, and preparing technical reports, recommendations, and design parameters for foundations, slopes, and earthwork.

The role involves coordinating with project managers, engineers, clients, and regulatory agencies, as well as mentoring and guiding junior staff in field practices, data interpretation, and report writing. The Principal Engineering Geologist will also support project scoping, proposal preparation, quality control, and help ensure adherence to safety, industry standards, and company procedures.

• Strong expertise in Engineering Geology, including geologic mapping, hazard evaluation, and interpretation of subsurface conditions.
• Proficiency in Geotechnical Engineering applications, including foundation recommendations, slope stability considerations, and earthwork evaluation.
• Demonstrated experience with Site Investigation and Field Work, including planning and supervising drilling, test pits, sampling, and in-situ testing.
• Hands-on skills in logging of borings, test pits, and other subsurface data, with accurate documentation and classification.
• Professional licensure as a Certified Engineering Geologist (CEG) in California, or eligibility to obtain in a reasonable timeframe.
• Bachelor’s degree in Geology, Geological Engineering, or a related field; a master’s degree is preferred.
• Substantial experience in applied engineering geology for land development, transportation, or infrastructure projects, including project leadership responsibilities.
• Strong technical writing and communication skills, with the ability to prepare clear, concise reports and present findings to clients and agencies.
• Proficiency with common geotechnical and geology software, and familiarity with relevant building codes and local regulatory requirements.
• Ability to manage multiple projects, lead multidisciplinary teams, and mentor junior professionals while maintaining a strong safety culture.

• Salary range: $110,000 to $150,000 (commensurate with experience)
• 401K plan with company match
• Vehicle and Phone Allowance
• Performance-based bonuses
• Medical, dental, and vision benefits
• Opportunities for growth and leadership
• Collaborative, team-oriented environment