Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Sr. Administrative Assistant

Robert Half

Job Description

Job Description

We are looking for an experienced Sr. Administrative Assistant to support office operations and provide high-level administrative coordination for leaders in Bellevue, Washington. This contract opportunity is ideal for someone who thrives in a fast-paced corporate setting and brings strong organization, communication, and follow-through to daily work. The role will help keep workplace activities running smoothly through meeting support, travel coordination, vendor communication, and broad administrative assistance.

Key Responsibilities

Office Operations & Workplace Support

  • Act as a primary point of contact for building management, facility service providers, and third-party vendors.
  • Coordinate and resolve office maintenance requests, workspace needs, and facility-related issues.
  • Manage office, kitchen, and breakroom supplies while maintaining inventory and monitoring expenses.
  • Coordinate incoming and outgoing mail, deliveries, shipments, and courier services.
  • Welcome visitors, candidates, clients, and business partners in a professional manner.
  • Answer and direct incoming calls and general inquiries.
  • Manage meeting space reservations and office scheduling needs.
  • Support internal workplace communications and employee engagement initiatives.

Meetings, Events & Hospitality

  • Coordinate catering and food service arrangements for meetings, training sessions, and company events.
  • Assist with planning and execution of employee gatherings, leadership meetings, and special events.
  • Ensure conference rooms and common areas are prepared and equipped for meetings.
  • Coordinate event logistics and vendor support as needed.

Administrative & Executive Support

  • Provide administrative support to senior leaders and executive support professionals.
  • Assist with travel arrangements, including transportation, lodging, itineraries, and related logistics.
  • Prepare and process expense reports and reimbursement documentation.
  • Support calendar management and meeting coordination.
  • Prepare presentations, reports, correspondence, and other business documents.
  • Maintain records, databases, trackers, and administrative systems.
  • Provide backup support and assist with special projects as needed.

Project Coordination & Process Improvement

  • Support administrative processes that improve operational efficiency and service delivery.
  • Track deadlines, action items, and recurring business activities.
  • Coordinate projects and initiatives involving multiple departments.
  • Research, compile, and organize information for reports and presentations.
  • Identify opportunities for process improvement and recommend solutions.

• 5+ years of experience in an administrative support role, including support for senior leaders or corporate office teams.
• Proven ability to manage calendars, coordinate meetings, and handle shifting priorities in a detail-oriented environment.
• Experience booking travel arrangements and managing related schedules, confirmations, and logistics.
• Familiarity with conference call coordination and general meeting support activities.
• Ability to prepare and maintain organized documentation, including export and import-related records when applicable.
• Strong written and verbal communication skills with a high level of discretion.
• Excellent organizational skills, attention to detail, and the ability to work independently while managing multiple tasks.

Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Sr. Administrative Assistant in Washington DC vacancy
  • $21 - $25 per hour

     ...Bilingual Administrative Assistant Sparks Group is seeking a Bilingual (Spanish) Administrative Assistant to manage the office and handle duties for upper management for an international health agency. We are looking for an individual who is efficient and comfortable... 
    Senior
    Hourly pay
    Immediate start

    Sparks Group

    Washington DC
    2 days ago
  • $24.83 - $35.71 per hour

     ...love in a community that feels like home. FTE:1.0 , Shift: M-F, Schedule: 8-430 Position Summary The Senior Administrative Assistant ensures the efficient and smooth day-to-day operations of an assigned department by providing a variety of complex... 
    Senior
    Full time
    Contract work
    Local area
    Shift work

    MultiCare Health System

    Washington DC
    2 days ago
  • $49.5k - $77k

     ...Description What is the opportunity? Provide high-level administrative support to the Divisional Director. At RBC Wealth Management...  ...Must-have ~1 to 3 years of experience as an Administrative Assistant preferably supporting at least one senior-level executive ~... 
    Senior
    Full time
    Work at office
    Flexible hours

    Royal Bank of Canada

    Washington DC
    more than 2 months ago
  • $29.16 - $43.73 per hour

    Provide a wide range of highly complex administrative tasks. Responsibilities include the organization, prioritization and coordination of...  .... Healthcare/medical office experience. Project management assistance experience. Compensation Range $29.16 - $43.73 per hour Salary... 
    Senior
    Hourly pay
    Full time
    Part time
    Work at office

    Seattle Children's

    Washington DC
    2 days ago
  • A consulting firm in Washington, D.C. is seeking a Master Scheduler for a contract with a Federal Government Agency. This remote role involves managing project schedules and ensuring accurate reporting for federal projects. Candidates must have a Master’s degree and extensive...
    Senior
    Contract work
    Remote work

    TeleSolv Consulting

    Washington DC
    3 days ago
  • Administrative Assistant III The Administrative Assistant III performs a wide variety of tasks such as typing, formatting, and editing correspondence and reports; organizing and correcting computer-based records and files; organizing and preparing materials for use in... 
    Senior
    Full time
    Temporary work
    For contractors
    For subcontractor
    Work at office
    Local area
    Immediate start

    FINRA

    Washington DC
    1 day ago
  •  ...Job Summary We are seeking a Senior Administrative Assistant to provide high‑level administrative and logistical support to a headquarters‑level defense research office. This role ensures smooth day‑to‑day operations, including IT coordination, visitor management,... 
    Senior
    Full time
    Work at office

    Chimera Enterprises International

    Arlington, VA
    more than 2 months ago
  • $130k

     ...Ensures timely, complete, and accurate baseline schedule submissions in compliance with company procedures and contracts. ~ Assists with schedule maintenance and change order management as needed. ~ Participates in financial and legal project reviews to... 
    Senior

    Flatiron Construction

    Arlington, VA
    2 days ago
  •  ...are a fast-growing government contracting firm specializing in administrative, IT, and mission support services across federal agencies. We...  ...Provide day-to-day conference room and training center support. Assist with AV setup, troubleshooting, and event readiness.... 
    Senior
    Full time
    Interim role
    Work at office

    Connexus Hub

    Arlington, VA
    12 days ago
  •  ...team Act as a primary contact for data center clients, ensuring all objectives are achieved. Lead junior staff members and assist with their development. Travel to client site / office as required About You ~ Bachelor's degree in Construction... 
    Senior
    Hourly pay
    Contract work
    Temporary work
    Work at office
    Flexible hours

    Atkins Realis

    Alexandria, VA
    1 day ago
  •  ...Description Report to the Associate Commissioner: On-Site Location in Washington- Bonuses plus other incentives: The Sr. Executive Assistant provides high-level support to an individual executive, managing complex calendars, coordinating occasional travel, and... 
    Senior
    Contract work

    Gray Matters Technology Services LLC

    Washington DC
    10 days ago
  • $112.2k - $196.4k

     ...Supports the development of an integrated master schedule at the project or program level based on input from multiple sites Provide assistance on any potential modifications and development or review of Time Impact Analysis to the construction contractors baseline... 
    Senior
    Contract work
    For contractors
    Local area
    Worldwide
    Flexible hours

    Parsons Corporation

    Washington DC
    1 day ago
  •  ...Senior Executive Assistant The Senior Executive Assistant provides executive-level administrative support to the Director and plays a central role in ensuring the efficient operation of the office. This position requires a highly experienced and proactive professional... 
    Senior
    Civilian Contractor
    Full time
    Temporary work
    For contractors
    Work at office
    Immediate start

    CHICKASAW NATION INDUSTRIES INC

    Washington DC
    5 days ago
  • Spry Methods is seeking an organized Executive Assistant / Scheduler to support the Director, Command, Control, Communications, and Computers (C4), Headquarters Marine Corps (HQMC) at the Pentagon. This role centers on enterprise decision-making, managing time, priorities... 
    Senior

    Sprymethods

    Arlington, VA
    2 days ago
  •  ...Job Summary To serve C3 by assisting the Senior Associate Pastor. This role is central in helping ensure the smooth and effective...  ...coordinating schedules, facilitating communication, and providing administrative and event support. Duties and Responsibilities Manage... 
    Senior
    Part time
    Work at office
    Flexible hours
    Shift work

    C3 Tri-cities

    Washington DC
    14 hours ago
  • $80k - $85k

     ...Job Description Job Description Senior Administrative Assistant [4810]. Financial institution seeks a Senior Administrative Assistant to provide operational support to senior leadership.   Responsibilities: Coordinate travel arrangements, manage internal calendars... 
    Senior
    Work experience placement
    Work at office

    Whitman Associates, Inc.

    Washington DC
    6 days ago
  • Nakupuna Consulting is seeking a Management Analyst IV- Scheduler/Risk Manager in Arlington, VA, to provide data analysis, complex problem solving, and leadership for a large IPPS-A AMP program. The role includes mentoring junior staff and partnering with government stakeholders...
    Senior

    Nakupuna Companies

    Arlington, VA
    14 hours ago
  • Guidehouse is seeking an Executive Administrative Assistant to provide high-level support to two SES-equivalent principals at DARPA. You will independently manage complex calendars, balance competing priorities, and coordinate with internal teams and external partners... 
    Senior

    Guidehouse

    Arlington, VA
    2 days ago
  •  ...Description Job Description Primary Role:   Performs administrative and office support activities. Duties may include fielding telephone...  ...any job correspondence in the appropriate location. 10.   Assist with reports and documentation when required 11.   Other... 
    Contract work
    For contractors
    Work at office

    Electrocom

    Washington DC
    12 days ago
  •  ...would love to talk with you regarding the next step in your career. Come join our team! Zantech is looking for a talented Administrative Assistant to contribute to the success of our upcoming Service Delivery & Resource Allocation Management Support project for an... 
    Full time
    For contractors
    Work at office

    Zantech

    Arlington, VA
    more than 2 months ago
  •  ...organized, detail-oriented professional to help us scale the administrative and financial backbone of the business without losing the precision...  ...'re known for. About the Role This is an administrative assistant role with a clear financial edge. While you'll support day-to... 
    Full time
    Work at office

    EGO Strength and Performance, LLC

    Washington DC
    2 days ago
  •  ...Beatrice Loving Heart is currently seeking talented individuals for the position of Front Desk Receptionist. The Administrative Assistant/ Front Desk Receptions will answer calls and perform clerical duties. Check faxes. Filing documents.Responsibilities: ~Answer calls... 
    Full time

    Beatrice Loving Heart

    Bowie, MD
    more than 2 months ago
  •  ...This full-time on-site position is focused on reception and outbound physical mail, including copying, scanning, filing and other administrative responsibilities. This law firm receptionist also involves certain tasks associated with legal documents, and correspondence.... 
    Full time
    H1b
    Monday to Friday

    McCalla Raymer Leibert Pierce, LLP

    Washington DC
    12 days ago
  •  ...Job Description Job Description We are looking for an Administrative Assistant to support a non-profit organization in Alexandria, Virginia. This contract position with potential for a long-term opportunity is ideal for someone who can keep administrative operations... 
    Contract work
    Work at office

    Robert Half

    Alexandria, VA
    2 days ago
  • $45k - $50k

     ...Ascendion. About the Role Job Title: Coordinator/Admin Assistant Responsibilities Processing compliance cases...  ...Associate Employment type ~ Full-time Job function ~ Administrative Industries Technology Information and Internet... 
    Full time
    Remote work

    Ascendion

    Washington DC
    1 day ago
  • $55k - $65k

     ...Job Summary We are seeking a highly organized and proactive Administrative Assistant for a temp-to-hire opportunity in the Seattle/Bellevue, WA area. This role is ideal for a detail-oriented administrative professional who enjoys variety, takes ownership of day-to-... 
    Temporary work
    Work at office

    AppleOne

    Washington DC
    3 days ago
  •  ...Administrative Assistant (Onsite – Washington, DC) Job Description We are looking for a highly organized, detail-oriented, and proactive Administrative Assistant to join our team. This role is vital in providing comprehensive administrative support to the leadership... 
    Full time
    Work at office

    The Park at 14th

    Washington DC
    more than 2 months ago
  • $46.74k - $56.08k

     ...and Molecular Genetics is a dynamic and interactive department actively engaged in research, teaching and service. The Administrative Assistant II provides comprehensive operational and administrative support for departmental programs and daily business functions. This... 
    Full time
    Work at office

    University of Maryland

    College Park, MD
    2 days ago
  •  ...Careerscape is supporting a client opening for a Remote Entry-Level Administrative Assistant. This role focuses on providing administrative support, managing schedules, maintaining records, coordinating communications, and assisting with day-to-day business operations... 
    Full time
    Work at office
    Remote work

    Careerscape

    Washington DC
    a month ago
  •  ...Job Description Job Description WE'RE LOOKING FOR AN EXTRAORDINARY ADMINISTRATIVE ASSISTANT   ARE YOU:  Passionate about creating a welcoming, organized, and professional workplace experience? Do you enjoy being the go-to person who keeps an office running smoothly... 
    Work at office

    Intracorp Homes (Seattle)

    Washington DC
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Sr. Administrative Assistant. Be the first to apply!