Executive Assistant; On-Site

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 is looking for an Executive Assistant to join our team in Pasadena, CA. The pay scale for this position is $72,000.00‑$90,000.00 annually, based on qualifications and experience.

Provide high‑level administrative services for executive management and lead various projects and processes for the corporate executive team. Responsibilities may include screening calls; managing calendars; making travel arrangements; meeting and event management; preparing correspondence and presentations; expense reporting; and processing invoices. Requires strong computer and Internet research skills, flexibility, excellent interpersonal skills, project management experience, and the ability to work well with all levels of internal management and staff, as well as outside clients, board members and vendors.

Sensitivity to confidential matters is required.

• Minimum 3‑5 years of experience as a C‑Suite Executive Assistant.
• Strong computer skills (Microsoft Word, Excel and PowerPoint).
• Must be able to manage multiple tasks at once, use sound independent judgment and follow‑up on prioritized assignments.
• Meeting management skills are needed.
• Attention to detail is a must.
• Strong verbal and written communications skills.
• Bachelor's Degree is preferred.
• Organization and follow‑up skills.

• 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.

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.