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Geotechnical Assistant Geologist

United States, Phoenix Employment contract · Job Posted June 17, 2026
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Job Description

Terracon is a 100 percent employee-owned multidiscipline consulting firm comprised of more than 8,000 curious minds focused on solving engineering and technical challenges from more than 200 locations nationwide. Since 1965, Terracon has evolved into a successful multi-discipline firm specializing in environmental, facilities, geotechnical, and materials services. Terracon’s growth is due to our talented employee-owners exceeding expectations in client service and growing their careers with new and exciting opportunities in the marketplace. Terracon was recognized as the #1 firm in Asbestos and Lead Abatement. Terracon’s vision of “Together, we are best at people” is demonstrated through our excellent compensation and benefits package.

Job Responsibility

  • Evaluate and interpret subsurface field and sampling data including soil and groundwater to develop conclusions concerning the environmental and geologic site conditions
  • Generate subsurface maps and cross-sections and collaborate with engineering and environmental scientist staff on projects
  • Oversee field monitoring and testing of soils including boring investigations and soil type classification
  • Interpret soil, bedrock and groundwater elevation and quality data
  • Prepare written plans and reports related to site investigations, assessments and remediation activities
  • Projects may include construction projects focusing on earthwork and structural foundations
  • well design and sampling
  • environmental assessments including Phase I/II site assessments
  • seismic risk assessments
  • Follow safety rules, guidelines and standards for all projects
  • Participate in pre-task planning
  • Report any safety issues or concerns to management
  • Be responsible for maintaining quality standards on all projects
  • Entry level geological professional responsible for gathering data and information to be evaluated by other team members
  • Performs sampling and testing of water, soil, and other materials
  • Tabulate and prepare data for written reports
  • Assist with report preparation by summarizing data and information within reports
  • Operates field monitoring equipment
  • Assists with operation and maintenance of remediation and instrumentation systems
  • Transport material, samples or documents to the laboratory for further testing and analysis
  • Maintains and calibrates field monitoring equipment
  • Developing level Geologist/ Hydrogeologist responsible for conducting analyses of component portions of projects
  • assignments are designed to develop knowledge and abilities
  • Performs site visits, field observations and field data collection or assignments
  • Assists in the collection and analysis of data from sampling, reports, maps, drawings, tests and aerial photographs to evaluate, plan and permit projects
  • Conducts water, soil and other sampling
  • Implements technical requirements to complete client projects by directing field staff to sample, test and collect data and/or document site activities
  • Outlines required investigative program(s) by selecting the proper alternative techniques to conduct site studies in field of expertise
  • May have limited client contact pertaining to specific projects/tasks
  • Proficient Geologist/ Hydrogeologist responsible for conducting site testing and making recommendations for systems design on smaller projects of minimal complexity
  • May assist more senior Geologists on large, more complex projects
  • Responsible for developing written proposals to clients for approval by senior level professionals
  • Evaluates moderately complex laboratory and field data and assembles in written reports
  • May serve as team member or participate in meetings and communications with client pertaining to specific projects/tasks
  • May oversee work performed by lower level Geologists/Hydrogeologists
  • Mid-level, experienced Geologist/ Hydrogeologist responsible for conducting site testing and making recommendations for systems design on medium sized projects with a variety of complexity
  • Participates with more senior Geologists on large, more complex projects
  • Responsible for developing written proposals to clients for both small and large projects including quality control review of proposals written by others
  • Evaluates complex laboratory and field data and assembles in written reports
  • May serve as team member or lead in meetings and communications with client pertaining to specific projects/tasks
  • May oversee work performed by lower level Geologists/Hydrogeologists

Requirements

  • Bachelor’s degree in Geology, Hydrogeology or related field
  • A valid driver’s license with acceptable violation history may be required

Nice to have

Certification in field of expertise

What we offer

  • medical
  • dental
  • vision
  • life insurance
  • 401(k) plan
  • paid time off and holidays
  • education reimbursement
  • various bonus programs

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