Administrative Assistant (Hybrid)

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.

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We are looking for an Administrative Assistant to join our team in our Diamond Bar, CA office. The selected individual will provide support to the managers and employees through a variety of tasks related to organization and communication. You will assist with the day-to-day operations of the office by doing tasks such as managing data reports, preparing documents, and providing support to project managers. This is a part-time, temporary role. The pay scale for this position is $20-$22 an hour, based on qualifications and experience.

Your Role:

• Greet and communicate with clients in a professional and courteous demeanor
• Assist with word processing letters and reports, using predefined styles and formatting
• Edit and format reports in MS Word, Excel, and PDF format
• Update and audit accounting spreadsheets and databases; perform data entry
• Prepare expense reports
• Perform clerical duties
• Assist and/or make travel arrangements for managers

• Assist with client billings

• 
  Perform and prioritize multiple tasks with attention to detail

Qualifications:

• Zero to five years of relevant experience
• Experience in accounting processes is desirable
• Ability to work and communicate effectively with a variety of personalities
• Proven ability to work in a fast-paced team environment, self-motivated, and high degree of organizational skills
• High school diploma and currently enrolled in a college program leading to a bachelor's degree.
• Must be able to support multiple staff using strong time management and organizational skills
• Willing to work between the hours of 8 AM – 5 PM Pacific Standard Time
• Must work well independently with little supervision and follows through on tasks to successful completion
• Willing to learn new skills and grow in the job as needed
• Willing to work overtime on occasion, as necessary