Administrative Assistant - Part-time

About Us

West Yost is a water resource management and engineering firm focused exclusively on water. Since our founding in 1990, we have partnered with public agencies including cities, counties, utilities, and water districts to plan, design, and deliver water, wastewater, and stormwater solutions that support safe, reliable, and resilient communities. Our team of more than 265 professionals brings together expertise in groundwater, water supply, treatment, infrastructure, recycled water, stormwater, construction management, and operations technology. We support projects from early planning and permitting through design and construction and complement our engineering services with program management and public outreach to help clients move work forward and engage their communities.

We are proud to be certified as a Great Place to Work®, and to be recognized among Fortune’s® Best Workplaces in Consulting and Professional Services from 2023 to 2025, as well as a top-ranked firm in the AEC Advisors Diversity Index. At West Yost, we are committed to being the water firm of choice for our clients and our team, advancing water resources for future generations through strong partnerships, practical solutions, and a shared commitment to quality.

About the Role

We're looking for a dependable, organized Administrative Assistant to provide part-time support to our Irvine office and team. This is a great opportunity for someone who enjoys administrative work, takes pride in creating a welcoming and well-run office, and is comfortable taking initiative and working independently. You'll be based in Irvine and work closely with an administrative team located across multiple offices. Because your manager is based in Northern California, proactive communication and collaboration with teammates in other locations will be important. This role may be especially appealing to someone looking for meaningful part-time work with a predictable but flexible schedule.

Responsibilities

• Help keep the Irvine office organized, welcoming, stocked, and running smoothly.
• Provide day-to-day administrative support to team members.
• Coordinate meetings, lunches, office events, conference rooms, and meeting spaces.
• Order and maintain office and kitchen supplies.
• Receive and distribute mail and packages.
• Assist with document preparation, formatting, scanning, filing, and organization.
• Coordinate with vendors and building contacts.
• Support onboarding and welcoming new team members.
• Assist with travel arrangements, expense reports, and occasional company initiatives.
• Notice what needs attention, take initiative, and help solve day-to-day office needs.
• Collaborate with administrative teammates in other offices and provide support across the team when needed.
• Participate in occasional company and administrative team events, including a few offsite or weekend events each year.

Qualifications

We're more interested in finding the right person for the team than in a specific number of years of experience. The ideal candidate:

• Has administrative, office, customer service, hospitality, or similar experience.
• Is dependable, organized, and attentive to detail.
• Follows through and can manage several priorities at once.
• Works comfortably and independently without constant direction.
• Uses good judgment and knows when to make a decision or ask a question.
• Communicates clearly and proactively, especially with a manager and teammates working remotely.
• Enjoys helping others and building positive working relationships.
• Is comfortable learning new technology and office systems.
• Has working knowledge of Microsoft Office.
• Is willing and able to attend occasional offsite and weekend events throughout the year.

What Success Looks Like

• Team members know they can rely on you to follow through.
• The Irvine office is organized, stocked, welcoming, and ready for the team.
• You independently handle routine responsibilities and notice needs before someone has to ask.
• You make thoughtful decisions and ask questions when something is unfamiliar or may have a broader impact.
• You communicate proactively with your manager and collaborate well with administrative teammates in other locations.
• You build strong relationships with the people you support and look for simple ways to make things easier or better.

Pay

Pay rate range: $23/hr - $28/hr, based on our Irvine, CA office location. West Yost uses geographic salary differentials that would apply for candidates in other regions.

Schedule

• Part-time, approximately 25-32 hours per week in the office.
• This position is fully in-office; hybrid or remote work is not available.
• We have flexibility in establishing the regular schedule and would like to find an arrangement that works well for both the team member and the Irvine team.
• Consistency in weekly office coverage is important, while still allowing more scheduling flexibility than a traditional full-time administrative position.
• A few times each year, participation in offsite company or administrative team events may be required, including occasional weekend events. Advance notice will be provided whenever possible.

Location

Irvine, CA only.

Benefits

We provide a comprehensive array of valuable benefits to protect your health, your family, and your way of life, including:

• Medical, dental, and vision insurance.
• Flexible spending accounts and health savings accounts (with West Yost contribution).
• Paid vacation, sick leave, and holidays.
• Two employee assistance programs and a travel assistance program.
• 401(k) profit sharing with employer match.
• Leaves of absence with additional supplemental paid time off, parental leave.
• Life and AD&D insurance, short-term and long-term disability insurance, and pet insurance.
• Support for ongoing education through our 529 college savings plan/student loan repayment program, tuition reimbursement, paid professional memberships, paid training, and Leadership Academy programs.
• Recognition for contributions through milestone anniversary benefits, peer-to-peer recognition programs, potential for employee stock ownership, annual monetary and paid time off bonuses, performance-based bonus eligibility, merit increase eligibility, and employee referral bonuses.
• Wellness reimbursement.

Workplace Culture

You will experience many opportunities to grow and develop professionally with your colleagues through collaborative in-person work experience, knowledge sharing, and mentorship opportunities. We also offer hybrid and flexible work schedules to our employees to help promote and encourage a healthy work/life balance. All team members have access to:

• Local and company-wide events.
• Diversity, Equity, and Inclusion Workgroup, Culture Workgroup, Wellness Workgroup.
• Book clubs, charitable giving, and community service.
• Firm-wide resources, peer groups (young professionals & middlers group), and mentorship and leadership programs.

We support and foster your career success and encourage you to be in control of your future with us. At West Yost, we make space for connection across the firm through:

• Monthly all-hands meetings that bring together team members from every location.
• Monthly sector and team meetings.
• Local office gatherings, from camping trips and river rafting to community events and celebrations.
• Annual All Staff event, a firmwide experience focused on learning, networking, and building relationships across teams.
• Duck Dinner, our longest-standing tradition, where West Yosters are encouraged to bring a guest and enjoy a night of great food, connection, and entertainment.

We work hard, and we place equal value on having fun. Our commitment to quality begins with our hiring practices. We employ the most talented team members in our industry from all backgrounds and are dedicated to our number one asset, our employees. Because we are employee-owned, we are responsible for and rewarded by our own success.