Administrative Assistant

Our Miami Transportation Group is seeking an Administrative Assistant.

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.

• Provide administrative and operational support to the Transportation Regional Manager.
• Assist with project coordination, including tracking schedules, budgets, deliverables, and other project-related activities.
• Support project financial administration, including invoicing, expense tracking, and coordination with accounting personnel.
• Organize and maintain project records, contracts, correspondence, and other documentation.
• Coordinate meetings, calendars, travel arrangements, and internal and external communications.
• Assist with business development activities, including proposal preparation, client coordination, and marketing initiatives.
• Support daily office operations and facilitate coordination among staff, clients, and subconsultants.
• Perform other administrative and project support duties as assigned.

• High School Diploma or GED required
• Proficiency in MS Word, Excel, PowerPoint, Teams, and Adobe Pro
• Exceptional attention to detail
• Positive, can-do attitude
• Strong written and verbal communication skills with all levels of management and peers
• Exceptional organizational skills and the ability to multi-task, work under pressure, prioritize time effectively and meet deadlines while maintaining a high level of integrity and confidentiality - especially with matters concerning business and staff
• Able to adapt quickly to changing priorities
• Able to work with minimal supervision and as part of a team

• Experience working in engineering or related technical industry a plus

• Primarily sedentary work in an office environment.
• Prolonged periods of sitting at a desk and working on a computer.
• Occasional standing, walking, and light physical activity.
• May occasionally lift or move items such as files or office supplies up to 15-25 pounds.

• Primarily office-based.
• Standard indoor environmental conditions.
• Moderate noise levels consistent with a typical office setting
• Coordination with remote teams, corporate support teams, vendors, subconsultants, and client representatives.

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, 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

Follow us on social media to learn more about our people, culture, and opportunities:

Linked In: @Tetra Tech Careers

X (Twitter): @Tetra Tech Jobs

• Organization: 200 IEW