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Robert Half Logo Robert Half · Office Administration

Administrative Assistant

United States, Seattle · Job Posted June 28, 2026
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Job Description

We are looking for an Administrative Assistant to support construction and development operations in Seattle, Washington. This Contract position plays an important role in keeping office activities organized, assisting leadership with daily administrative needs, and helping maintain accurate project and vendor documentation. The ideal candidate brings strong coordination skills, a service-minded approach, and the ability to manage multiple priorities in a well-organized office environment.

Job Responsibility

  • Support executive and department leadership with calendar management, meeting coordination, correspondence, and preparation of reports and business documents
  • Assist with monthly draw administration by compiling invoice and waiver records, organizing electronic documentation, and preparing supporting report packages
  • Process office records by scanning, filing, and maintaining both physical and digital documents, including invoices, checks, and project-related files
  • Provide contract administration assistance by helping track subcontracts, purchase orders, change orders, insurance certificates, and waiver documentation
  • Enter and maintain vendor information in company systems, ensuring files remain current, complete, and easy to retrieve
  • Help keep the front office, conference rooms, and shared spaces organized, welcoming, and ready to receive guests and team members
  • Coordinate everyday office services such as mail distribution, supply ordering, equipment upkeep, parking arrangements, and communication with building management
  • Support financial and operational workflows by processing expense reports and assisting with weekly project and overhead invoice handling
  • Maintain office calendars and help organize company meetings and events to ensure smooth scheduling and execution

Requirements

  • Prior experience in an administrative support role, preferably in a construction, development, or project-based business environment
  • Strong ability to scan, organize, and maintain documents with a high level of accuracy and attention to detail
  • Experience with invoice entry, data entry, and routine administrative processing tasks
  • Proficiency in Microsoft Office or similar business software used for scheduling, reporting, and document preparation
  • Ability to manage multiple assignments, follow up on outstanding items, and meet recurring deadlines
  • Strong communication skills with the ability to interact effectively with executives, vendors, visitors, and internal teams
  • Comfortable handling office supply coordination and general office support responsibilities in a fast-paced setting

What we offer

  • medical, vision, dental, and life and disability insurance
  • enrollment in company 401(k) plan
  • free online training
  • access to top jobs
  • competitive compensation and benefits
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