Demo

Entry-Level CADD Operator / Phase I ESA Specialist (Hybrid)

Tetra Tech
Irvine, CA Full Time
POSTED ON 1/8/2026
AVAILABLE BEFORE 2/6/2026
The Opportunity

Tetra Tech is adding an Entry-Level CADD Operator / Phase I ESA Specialist to support our environmental investigation and remediation practice in California, with potential expansion into other regions across the United States. This position may be remote or hybrid, with access to our California offices.

This role offers an excellent opportunity for early-career professionals to gain hands-on experience in CADD drafting and Phase I Environmental Site Assessments (ESAs) within a collaborative consulting environment. Training for Phase I ESA work can be provided, as needed.

Why Tetra Tech

At Tetra Tech, we are Leading with Science to solve the world’s most complex challenges.Our industry-leading experts in engineering and consulting are committed to driving positive change in communities around the world.For over 50 years, we have been at the forefront of innovation and sustainability.Today we stand as a market leader, offering cutting-edge solutions in water, environment, energy, and international development.Our work has improved more than 625 million lives around the world.

Your Impact

Join Tetra Tech to make a real difference.Our work leverages cutting-edge technologies, advanced analytics, and the expertise of world-class scientists and engineers to create meaningful change around the world. Discover your full potential – join us to advance your career while leaving a lasting legacy.

Position Summary

The Entry-Level CADD Operator / Phase I ESA Specialist will support senior geologists, scientists, and engineers by preparing technical drawings and assisting with environmental site assessments in accordance with current ASTM standards. The position involves a mix of office-based technical work and field activities, including site visits throughout California.

Essential Job Functions

  • Conduct Phase I Environmental Site Assessments (ESAs) in accordance with current ASTM standards
  • Perform site visits at subject properties throughout California, including documentation through notes and photographs
  • Create figures, drawings, and plans using CADD software (AutoCAD Civil 3D)
  • Assist with data evaluation and preparation of technical reports
  • Support environmental investigation and remediation projects
  • Maintain strong organization while managing multiple assignments
  • Work collaboratively with project teams and senior technical staff
  • Adapt to a variety of tasks and project needs in a dynamic consulting environment
  • Conduct activities in line with internal procedures, legislation, and industry standards.
  • Pursue continuous professional development and maintain a high degree of discipline knowledge and awareness.
  • Work in a safe manner at all times and report all health and safety incidents and concerns.
  • Additional duties as assigned

Required Qualifications

  • Bachelor’s degree from an accredited college or university in Environmental Engineering, Geology, Hydrogeology, Environmental Science, or a related field
  • 0–3 years of directly relevant experience (1 year of environmental consulting experience preferred)
  • Proficiency with AutoCAD Civil 3D (2025)
  • Strong written and verbal communication skills
  • Strong analytical, organizational, and problem-solving skills
  • Ability to manage multiple projects with minimal supervision
  • Ability to work effectively under pressure and meet deadlines
  • Must possess a valid driver’s license with a clean driving record without restrictions.

Preferred Qualifications

  • Prior experience with Phase I ESAs
  • Familiarity with ASTM environmental standards
  • Experience supporting environmental investigation or remediation projects
  • Interest in developing a long-term career in environmental consulting

Physical Requirements

  • Ability to perform site visits at active or undeveloped properties
  • Ability to walk, stand, bend, and navigate uneven terrain during fieldwork
  • Ability to lift and carry light equipment and materials (up to approximately 25 lbs.)
  • Ability to take detailed field notes and photographs during site visits

Work Environment / Environmental Factors

  • Combination of office, remote, and field-based work
  • Fieldwork may include travel throughout California with potential for overnight stays
  • Exposure to varying weather conditions during site visits
  • Work may involve visiting industrial, commercial, and undeveloped properties
  • Compliance with health and safety requirements, including use of personal protective equipment (PPE) when required

Additional Information

  • This position requires completion of 40-hour OSHA HAZWOPER training (provided as needed), annual 8-hour refreshers, First Aid/CPR training, and participation in medical monitoring programs
  • Tetra Tech is committed to hiring and retaining high-performing professionals who demonstrate technical excellence, strong ethics, teamwork, and a commitment to continuous learning
  • Employment is contingent upon successful completion of pre-employment requirements

Life At Tetra Tech

The perks of working at Tetra Tech include:

  • Comprehensive and market-competitive benefits. https://www.tetratech.com/careers/life-at-tetra-tech/
  • Merit-based financial rewards.
  • Flexibility and company-wide commitment to work/life balance.
  • Collaborative team atmosphere that values the contributions of all employees.
  • Learning and development opportunities for ongoing professional growth.

A pre-employment drug screen in compliance with federal regulations is required, along with a physical if needed.

Compensation

Pay commensurate with experience.

Pay Range: $75,000-$90,000 yearly

Pay Range - There are multiple factors that are considered in determining final pay for a position, including, but not limited to, relevant work experience and demonstrated work experience in the above role; skills, certifications, and competencies that align to the specified role; geographic location; and education, as well as contract provisions regarding labor categories that are specific to the position.

At Tetra Tech, health and safety play a vital role in our success. Tetra Tech’s employees work together to comply with all applicable health & safety practices and protocols, including public health orders and regulations that are mandated by local, state, provincial, federal, international authorities, and clients.

About Tetra Tech

Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide. With 30,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science ® to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition.

Tetra Tech is proud to be an Equal Opportunity Employer.All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sex, marital or familial status, status as a protected veteran, or any other characteristic protected by law. Tetra Tech is a VEVRAA federal contractor and we request priority referral of veterans.

We invite applications from all interested parties.

Explore our open positions at https://www.tetratech.com/careers Follow us on social media to learn more about our people, culture, and opportunities:

LinkedIn: @TetraTechCareers

X (Twitter): @TetraTechJobs

Additional Information

  • Organization: 194 CES

Salary : $75,000 - $90,000

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