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Posted July 28, 2026

Office and Project Administrator

Hazen and Sawyer
San Francisco, CA, US Full Time
85000USD - 95000USD per year

Job Description

Job Description

Hazen & Sawyer is seeking an Administrator based in our San Francisco, CA office with support for the Concord and Sacramento offices. We are seeking a proactive and enthusiastic administrative professional with a positive attitude, who excels in communication, is detail-orientated, technologically proficient, teachable, and thrives in a team environment.

Why Hazen and Sawyer:

  • Founded in 1951 by the son of Allen Hazen (developer of the Hazen-Williams equation), we are an employee-owned company with a singular focus on "all things water."
  • Our work includes planning, design, and oversight of construction of environmental infrastructure – for water, wastewater, and stormwater management.
  • We foster a work environment low on bureaucracy and high in creativity.
  • We recruit talented professionals, provide them with challenging, interesting, and creative assignments, and furnish them with the tools they need to succeed.
  • We currently have over 2,300 employees in 90+ offices throughout the United States, Latin America, Canada, and the UK.

Work Schedule: This is a full-time (Monday - Friday) and in office position.

Responsibilities:

  • Executive and Administrative Support
    • Provide administrative support to the Regional Management Team.
    • Coordinate schedules, meetings, and appointments.
    • Assist with expense reports and related administrative tasks.
    • Develop polished materials for meetings, proposals, presentations, and leadership events.
    • Maintain organized electronic and physical filing systems.


  • Team and Operational Support
    • Format, edit, and finalize reports, proposals, presentations, and technical documents using Microsoft Office Suite.
    • Perform PDF editing, merging, bookmarking, and document management tasks to support high-quality deliverables.
    • Assist field staff with construction administration support, including meeting preparation, agendas, minutes, and online systems.
    • Provide onboarding and offboarding HR support, including workspace setup for new employees.
    • Support Project Managers with preparation, submittal, and tracking of monthly client invoices.
    • Provide administrative support to project managers and engineering teams.
    • Track project schedules, deadlines, and deliverables.
    • Learn and utilize internal systems and software, including Procore, e-Builder, Oracle Unifier, SharePoint, and Deltek Vantagepoint.
    • Provide additional administrative and operational support as needed.


  • Office Support
    • Welcome guests and clients and manage incoming calls to the main office line.
    • Handle incoming and outgoing mail, shipping, and delivery tracking.
    • Maintain office supply and kitchen inventory, coordinate ordering and invoicing, and manage vendor relationships.
    • Maintain a professional, organized, and well-functioning office environment and common areas.
    • Coordinate with building maintenance, janitorial, and security services as needed.


  • Scheduling and Event Coordination
    • Plan and coordinate office activities, meetings, and events, including catering and logistics support.
    • Support in-person meetings by reserving rooms, preparing agendas and materials, coordinating food orders, and setting up/breaking down meeting spaces.
    • Manage office calendars and meeting invitations.
    • Some events may require occasional after-hours or weekend support.


  • Qualifications
    • Seven to ten years of direct experience in an administrative, project assistant, or similar professional support role.
    • Experience in a professional services environment preferred; engineering industry experience is a plus.
    • Associate or bachelor’s degree preferred but not required.
    • Excellent written and verbal communication skills with the ability to interact professionally with staff, clients, and vendors.
    • Strong organizational and multitasking abilities with the ability to manage multiple priorities and deadlines.
    • Strong attention to detail, initiative, and problem-solving skills.
    • Ability to work independently and collaboratively in a fast-paced environment.
    • Proficiency in Microsoft Office Suite, including Word, Excel, Outlook, and PowerPoint.
    • Experience with Adobe Acrobat, Bluebeam, Procore, SharePoint, and Deltek Vantagepoint is preferred but not required.
    • Ability to quickly learn new systems and software.


What We Offer:

  • Comprehensive health benefits (medical, dental, vision, and prescription plans)
  • Pre-tax flexible spending plans for medical, dependent care, and transportation
  • Short and long-term disability, and employer paid life insurance
  • Paid holidays, floating holidays, and paid time off (PTO)
  • Employer-contributed 401(k) plan and additional financial planning support
  • Professional growth opportunities, including tuition reimbursement, in-house training, and incentives for professional registration and professional organization memberships
  • Starting pay range for this position depends on skills, experience, education and geographical location


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