Demo

Project/Senior Engineer

Tetra Tech
Diamond, CA Full Time
POSTED ON 4/4/2026
AVAILABLE BEFORE 5/3/2026
Discover your full potential. At Tetra Tech, we are collaborating with industry-leading experts for a sustainable future for our world. We combine consulting and engineering with advanced analytics and technology to solve the world’s most complex challenges. Our innovation hubs across the globe will enable you to share ideas and best practices while growing your professional network. Wherever you are in your career journey, you will benefit from working with world-class engineers, scientists, and technical specialists.

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.

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.

Apply today and join the company that is Leading with Science®.

Tetra Tech's geotechnical office in Diamond Bar provides a broad range of services to a broad range of clients. Our projects include dams, levees, surface mining and reclamation, landfill design, expansions and closures, brownfield redevelopments, infrastructure projects, landslides assessments and mitigations, and of course conventional geotechnical engineering projects involving foundations for hi-rises, commercial, industrial, single-family buildings, as well as offers forensics, expert, and agency review services. Our clients include federal, state, county, and local government agencies as well as private entities. Our staff includes certified and mostly higher degree geotechnical engineering, geology, and field construction staff. The Diamond Bar geotechnical group provides advanced geotechnical engineering services focusing on earthquake engineering and advanced numerical modeling to Tetra Tech's worldwide operations. Although most of our projects are in Southern California, we routinely provide services in Northern California, Arizona, and New Mexico, and occasionally across the country and internationally.

Tetra Tech is adding a Project/Senior Engineer to our team based in Diamond Bar, CA. The position will require hands-on involvement in all project phases from proposal, project management and engineering, to client and design team interactions and eventual construction as well as involvement with the group management and administration. However, training will be provided as needed. This is a position with a significant long term managerial growth potential. Marketing experience is welcome but not required. The pay scale for this position is $100,000 to $160,000 annually based on qualifications and experience.

Your Role

  • Preparation of scopes and budgets for proposals
  • Management of junior and field staff to procure and conduct field investigations
  • Management and lead of data processing and engineering analyses efforts for preparation of reports
  • Preparation of reports including management of the support engineering, geology, and drafting staff, leadership role in writing of well-structured reports suitable for senior review
  • Participation and overseeing field efforts during both investigation and construction
  • Interaction with clients to resolve scheduling, technical, and budgetary issues
  • Provide mentorship to junior staff

Qualifications

  • MSc in Geotechnical Engineering, PhD is preferred
  • PE Registration or eligibility to sit for an exam
  • 7 years of relevant experience
  • Experience in a geotechnical consulting firm is preferred
  • Competency in common geotechnical engineering analyses and reporting
  • Specialty in a certain geotechnical field, e.g., seismic, landfill, numerical modeling
  • Experience with grading observations and testing
  • Strong competency with Excel and Word is a must, familiarity/competency with drafting and presentation software, e.g., Corel Draw, Adobe Illustrator, AutoCAD is a plus
  • Excellent oral communications skills
  • Strong attention to detail and organizational skills
  • Ability and willingness to manage staff
  • Willingness to work in the field as needed
  • Ability/willingness to occasionally travel
  • The applicant must be able to work outdoors under varying weather conditions, travel by foot over rough terrain, and lift at least 40 pounds

Life At Tetra Tech

The perks of working at Tetra Tech include:

  • Comprehensive and market-competitive benefits.
  • 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.

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 25,000 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, sexual orientation, gender identity, 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

We thank all applicants for their interest, however, only those candidates selected for interviews will be contacted.

Please no phone calls or agencies.

Additional Information

  • Organization: 197 SWW

Salary : $100,000 - $160,000

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