Demo

Senior Environmental Technician

ECS Group of Companies
Walnut, CA Full Time
POSTED ON 12/9/2025 CLOSED ON 1/13/2026

What are the responsibilities and job description for the Senior Environmental Technician position at ECS Group of Companies?

Engineering Consulting Services (ECS) is seeking an experienced Senior Environmental Technician to join our Water Solutions Group. This role performs specific field tasks assigned by others on projects of moderate complexity. Work will be primarily field based. The ideal candidate presents a positive customer service attitude and understanding of ECS Core Values.

Key Responsibilities

  • Field sampling of various media while working both indoors and outdoors in a variety of weather conditions.
  • Daily communication is required with other ECS technicians and project managers and as directed, site representatives.
  • Attend and participate in project meetings with senior staff as requested
  • May be involved with calculations and data reduction of test results, drafting and other administrative duties, as required.
  • You are expected to display the ability to calibrate and use field equipment and document readings appropriately.
  • Incidental duties include office clerical tasks, report production assistance and other office related tasks.
  • Support pilot tests, treatability studies, and system startups.
  • Perform installation and commissioning of treatment systems and related remediation equipment.
  • Communicate changing site conditions to supervisor and discuss their implications on field investigations. Determine the appropriate modifications to investigation, discuss them with your supervisor and implement them in the field.
  • You may be expected to train and mentor other ECS technicians.
  • Other duties as assigned.

Qualifications

  • High school diploma or GED required
  • Minimum 4 years of related experience
  • If driving for, or on behalf of, any ECS subsidiary, a valid driver’s license is required.
  • Must be able to provide suitable transportation for use on job sites - Mileage will be reimbursed
  • Maintain OSHA 40-hour HAZWOPER certification.

Skills And Abilities

  • Good knowledge of environmental principles, applications, and testing standards
  • Must be able to lift a minimum of 40 pounds a number of times each day and walk on uneven ground through various terrains.
  • Ability to complete daily field reports detailing site activities and observations with directions and training provided.
  • Basic understanding of advanced in-situ and ex-situ remediation technologies (e.g., bioremediation, chemical oxidation/reduction, PFAS treatment).
  • Limited understanding of hydrogeologic and chemical processes governing contaminant behavior.

The expected pay range for this role and location is $30-$40/hour. The final agreed-upon compensation will be determined based on specific location and other individual qualifications.

ECS Group of Companies (ECS) was founded in 1988 with the goal to raise the standards of professional engineering consulting. Today, we are a leader in geotechnical, construction materials, environmental and facilities consulting services. We are employee-owned with more than 3,000 employees in 100 offices and testing facilities coast to coast. ECS is currently ranked #66 in Engineering News-Record’s Top 500 Design Firms (April 2025), #148 in Engineering News-Record’s Top 200 Environmental Firms (October 2025) and #50 in Zweig Group’s Hot Firm List (May 2025). For additional information about ECS, visit: www.ecslimited.com.

Salary : $30 - $40

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Senior Environmental Technician?

Sign up to receive alerts about other jobs on the Senior Environmental Technician career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$68,494 - $88,573
Income Estimation: 
$81,449 - $105,613
Income Estimation: 
$68,494 - $88,573
Income Estimation: 
$81,449 - $105,613
This job has expired.
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at ECS Group of Companies

  • ECS Group of Companies Louisville, KY
  • Observing and documenting field activities related to the construction process Sampling, testing, and inspecting soils, aggregates, concrete, grout, masonr... more
  • 2 Days Ago

  • ECS Group of Companies Brookfield, WI
  • Resposibilities Perform accounting, human resources and other administrative duties with supervision. Process payroll, accounts payable, accounts receivabl... more
  • 2 Days Ago

  • ECS Group of Companies Memphis, TN
  • Observing and documenting field activities related to the construction process Sampling, testing, and inspecting soils, aggregates, concrete, grout, masonr... more
  • 2 Days Ago

  • ECS Group of Companies Monroeville, PA
  • No experience necessary, paid training is provided, and we pay your certification fees! ECS Limited is offering a unique opportunity for a talented Constru... more
  • 2 Days Ago


Not the job you're looking for? Here are some other Senior Environmental Technician jobs in the Walnut, CA area that may be a better fit.

  • GSI ENVIRONMENTAL INC Emeryville, CA
  • About the job GSI Environmental Inc. is a private engineering and science consulting firm consisting of environmental engineers, geologists, and scientists... more
  • 4 Days Ago

  • GSI ENVIRONMENTAL INC Emeryville, CA
  • About the job GSI Environmental Inc. is a private engineering and science consulting firm consisting of environmental engineers, geologists, and scientists... more
  • 6 Days Ago

AI Assistant is available now!

Feel free to start your new journey!