Junior Administrative Assistant - Portland, OR

The Opportunity:

Tetra Tech is adding a highly motivated and customer-focused Junior Administrative Assistant to support our Portland, Oregon office. This position plays an important role in maintaining efficient office operations and supporting employees who work in-office, hybrid, and remotely.

The successful candidate will assist with a variety of administrative, office coordination, customer service, and logistical support functions. This is an excellent opportunity for an early-career administrative professional looking to develop new skills and grow within a collaborative consulting environment.

Location: Portland, OR

Why Tetra Tech:

At Tetra Tech, we are Leading with Science to solve the worlds 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.

Essential Job Functions:

Administrative & Office Support

• Manage schedules and facilitate communication among team members.
• Handle office documentation and coordinate essential office logistics.
• Process mail and overnight shipping requests.
• Assist with employee expense reports.
• Prepare purchase requisitions.
• Support office staff with administrative tasks and special assignments.
• Assist with data entry, spreadsheets, databases, and records management activities.
• Reproduce large documents and project deliverables.
• Maintain document control systems in accordance with company standards.
• Cover front desk responsibilities and receive deliveries.
• Maintain visitor sign-in logs and office security procedures.

Office Coordination & Facilities Support

• Maintain a clean, organized, and professional office environment.
• Maintain and organize office, kitchen, field equipment, safety equipment, and supply inventories.
• Coordinate ordering and stocking of office supplies.
• Maintain and clean two office kitchens.
• Coordinate office lunch orders and catering for meetings and events.
• Assist with maintenance and care of office plants.
• Serve as a liaison with building management in coordination with administrative staff.
• Serve as an IT liaison for reporting technical and server issues.
• Maintain office key fob inventory and online security systems.

Customer Service & Team Support

• Provide professional customer service to employees, clients, and visitors.
• Support office events, including summer and holiday gatherings.
• Assist with scanning, copying, filing, invoice processing, and general office support.
• Follow through on assigned tasks to successful completion.
• Support a collaborative team environment while working independently as needed.
• 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
• Perform additional duties as required

Required Qualifications:

• High School Diploma or GED required.
• 12 years of administrative experience.
• Strong interpersonal and verbal communication skills.
• Strong customer service orientation.
• Excellent organizational and time-management skills.
• Ability to prioritize multiple assignments and maintain attention to detail.
• Proficiency with:
  • Microsoft Outlook
  • Microsoft Word
  • Microsoft Excel
  • Microsoft PowerPoint
• Ability to work independently with minimal supervision.
• Willingness to learn and grow professionally.
• Must possess a valid drivers license with a clean driving record without restrictions.

Preferred Qualifications:

• 25 years of receptionist and/or administrative experience.
• Experience supporting office operations in a professional environment.
• Experience with records management and document control.
• Experience with office inventory management and purchasing activities.
• Experience coordinating meetings, office events, and catering services.

Physical Requirements:

• Ability to lift and carry office supplies and materials up to 30 pounds.
• Ability to stand, walk, bend, and move throughout the office as needed.
• Ability to perform moderate physical activity associated with office support functions.

Work Environment / Environmental Factors:

• Full-time, in-office work environment.
• Frequent interaction with employees, clients, vendors, and visitors.
• Occasional support for office events outside normal business hours.
• Fast-paced environment requiring flexibility and strong organizational skills.

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.

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: $20.00-$25.00 hourly

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

LinkedIn: @TetraTechCareers

X (Twitter): @TetraTechJobs

• Organization: 194 CES