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 a Senior Administrative Assistant with relevant experience to provide high-level support to leadership within the accounting and finance organization in Washington. This Long-term Contract position calls for someone who brings strong judgment, warmth, and a strong business presence while keeping daily operations organized and running smoothly. The ideal candidate is comfortable working across teams, communicating with vendors and internal partners, and handling sensitive matters with discretion and confidence.

Responsibilities:
• Coordinate calendars, travel plans, and expense submissions for senior leadership, while helping maintain schedules for additional team members as needed.
• Serve as a central point of contact for administrative requests by managing incoming communications, routing mail, and ensuring documents reach the appropriate departments promptly.
• Prepare and send clear, effective correspondence on behalf of leadership, including reminders, follow-up messages, and other business communications.
• Maintain office readiness by overseeing meeting room setup, monitoring workplace supplies and refreshments, and addressing day-to-day administrative needs.
• Partner with facilities, property management, and internal support teams to resolve workspace concerns and support a productive office environment.
• Assist with onboarding activities by coordinating equipment requests, badge access, workspace arrangements, and communication with IT and related teams.
• Support vendor and supply coordination, including ordering office items, tracking requests, and maintaining effective external partner communication.
• Update and manage organizational charts and other administrative records to help keep department information accurate and current.
• Act as a trusted liaison for senior leadership by handling requests effectively, protecting confidential information, and escalating issues when appropriate.• 2+ years of administrative support experience, preferably in a corporate or executive support environment.
• Demonstrated ability to manage calendars, business travel, and expense reporting with strong attention to detail.
• Comfortable working with accounting and finance terminology and supporting leaders in a finance-focused organization.
• Strong interpersonal skills with the ability to build positive relationships across departments and with external vendors.
• Excellent written and verbal communication skills, including the ability to draft clear emails and business correspondence.
• Highly organized and dependable, with the confidence to prioritize tasks, speak up when needed, and handle changing demands effectively.
• Proficiency in office coordination tasks such as mail handling, supply ordering, onboarding support, and meeting preparation.

Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Sr. Administrative Assistant in Washington DC vacancy
  • $21 - $25 per hour

     ...Job Summary/Company : 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 being a member... 
    Senior
    Hourly pay
    Immediate start

    Sparks Group

    Washington DC
    4 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
    11 days ago
  • $56k - $77k

     ...Job Description Job Description     Summary Provides administrative support to the Vice President of Engineering, the Engineering...  ...Performs daily office administration duties. Assists with updates to department processes, procedures and training... 
    Senior
    Permanent employment
    Work at office
    Shift work

    Greenpoint Technologies

    Washington DC
    3 days ago
  •  ...Administrative Assistant Senior Ghostrock, a subsidiary of Three Saints Bay, LLC, and a Federal Government Contractor industry leader, is seeking an Administrative Assistant Senior. Position Responsibilities: ~ Provide general administrative support and perform... 
    Senior
    For contractors
    Work experience placement
    Local area

    Three Saints Bay

    Arlington, VA
    2 days ago
  • $145.6k - $187.2k

    Senior Scheduler Position Summary: Provides detailed oversight and reporting for contractor schedule submittals. Monitors critical path activities, logic structures, and schedule interfaces. Updates the project schedule monthly, performs variance analysis, recommends...
    Senior
    For contractors

    Cornerstone Concilium Inc

    Washington DC
    4 days ago
  • $26 - $30 per hour

     ...Job Title: Senior Administrative Assistant Industry : Administrative / Executive Support / Office Operations Location : Washington, DC (Hybrid) Assignment Type : Contract (2-3 months) Pay : $26 - $30 / Hour (commensurate with experience) Work Schedule... 
    Senior
    Full time
    Contract work
    Temporary work
    Work at office
    Local area
    Monday to Friday

    Addison Group

    Washington DC
    a month ago
  • $60k - $90k

     ...better way.    Americans for Prosperity is part of the Stand Together philanthropic community.  We are looking for a Sr. Administrative Assistant to join Americans for Prosperity (AFP). We need a quick-thinking collaborator to support multiple leaders within the AFP... 
    Senior
    Immediate start
    Flexible hours

    Stand Together

    Arlington, VA
    11 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
  •  ...Senior Administrative Assistant This hybrid contract role (2-3 months) provides senior-level administrative support to leadership and internal teams. Core responsibilities include calendar management, travel coordination, invoice tracking, and helping organize internal... 
    Senior
    Contract work
    Work at office

    Addison Group

    Washington DC
    3 days ago
  •  ...Job Description Job Description 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... 
    Senior
    Work at office

    Chimera Enterprises International

    Arlington, VA
    9 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
    Remote job
    Contract work

    TeleSolv Consulting

    Washington DC
    3 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
  • $21.8 - $28.32 per hour

     ...Senior Administrative Assistant Job Description Summary: The Senior Administrative Assistant provides administrative support to the Office of Undergraduate Affairs and Special Programs and the Office of the Provost. The position reports directly to the Assistant Provost... 
    Senior
    Full time
    Temporary work
    Part time
    Work at office
    Remote work
    Visa sponsorship
    Work visa
    Monday to Friday

    The George Washington University

    Washington DC
    1 day ago
  • $97.96k - $103.11k

    Scheduler For DoD Customer's Classified Network ServicesAbile Group has an exciting and challenging opportunity for a potential Scheduler supporting a DoD Customer's Classified Network Services. The mission will include Operations, Compliance, Cyber Security, Customer ...
    Senior
    Contract work
    Temporary work
    For contractors
    Work experience placement
    Immediate start

    Abile Group, Inc.

    Washington DC
    4 days ago
  • KBR is seeking a Senior Integrated Scheduled Analyst to support AF/A10 nuclear modernization efforts. The role focuses on developing and maintaining integrated master schedules across programs, providing leadership with visibility into critical paths and risk, and coordinating...
    Senior

    KBR Careers

    Arlington, VA
    4 days ago
  •  ...Mandatory Skills: # Bachelor's or Master's degree in project management, Business Administration, Information Technology, or a related field; or equivalent professional experience. # Minimum ten (10) years of progressive experience in project or program schedule... 
    Senior
    For contractors
    Shift work

    California Creative Solutions Inc.

    Washington DC
    2 days 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
    11 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
    22 hours 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

    Washington DC
    4 days ago
  •  ...management, and data analytic support services to federal and state governments. Clerical and Administrative Support Specialist Supporting SAF/FM (Office of the Assistant Secretary of the Air Force for Financial Management and Comptroller) Employer: US Federal... 
    Temporary work
    For contractors
    Work at office
    Monday to Friday

    US Federal Solutions

    Washington DC
    8 days ago
  •  ...Administrative And Executive Assistant Looking for an innovative organization and the opportunity to learn and grow professionally? We can help! We are seeking an experienced Administrative And Executive Assistant to support senior leadership and day-to-day operations... 
    Full time
    Contract work
    Part time
    Work at office

    Terrestris Global Solutions

    Suitland, MD
    1 day ago
  •  ...Administrative Assistant - DC/MD/VAJamison Professional Services, Inc. ("Jamison") is currently seeking a qualified and motivated candidate for the position of Administrative Assistant. Job Title: Administrative Assistant DESCRIPTION OF SERVICES: A federal government... 
    Temporary work

    Jamison Professional Services, Inc.

    Washington DC
    4 days ago
  • $22 - $24 per hour

     ...Administrative Assistant LHH is partnering with a mission-driven nonprofit organization in the Washington, DC area seeking a Temporary Administrative Assistant to provide immediate support to its political department. This is an excellent opportunity for an organized... 
    Full time
    Temporary work
    Work at office
    Local area
    Immediate start
    Remote work
    Monday to Friday

    LHH

    Washington DC
    2 days ago
  •  ...Administrative AssistantSummit Federal Services, LLC (SFS) with headquarters in Oakland, Maryland, is a fast-growing woman owned Small Business...  ...federal agencies. SFS is looking for an Administrative Assistant Location: Washington DC, National GuardPosition OverviewSFS is... 
    Work at office
    Shift work

    Summit Federal Services LLC

    Washington DC
    2 days 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 Liebert Pierce, LLC

    Washington DC
    2 days ago
  • $58k - $65k

     ...STATEMENT: The Foundation for the National Institutes of Health (FNIH) is seeking a highly organized and proactive Administrative Assistant to support the Strategic Alliances and Translational Sciences divisions, a passionate team of professionals building and... 
    Full time
    Part time
    Work at office

    Foundation of the NIH

    Chevy Chase, MD
    2 days ago
  • $27.3k - $32.67k

    Are you an organized, detail-oriented administrative professional looking for a dynamic part-time role? We are seeking a dependable Administrative & Office Support Assistant to serve as the operational heartbeat of a premier association team. In this multi-faceted role... 
    Permanent employment
    Temporary work
    Part time
    Work experience placement
    Work at office
    Shift work

    Randstad

    Washington DC
    4 days ago
  •  ...Administrative Assistant II ProSidian Seeks a Administrative Services Administrative Assistant II located: CONUS - Fort Worth, TX to provide Financial Services Sector related Human Capital Solutions for Administrative Support Services Services on behalf of The Department... 
    For contractors
    Work at office
    Flexible hours

    ProSidian Consulting

    Washington DC
    2 days ago
  • $25 - $28 per hour

     ...Part-Time Administrative AssistantThe Council on Education for Public Health (CEPH) seeks a part-time Administrative Assistant. The position offers the opportunity to collaborate with talented people who are passionate about quality in public health and higher education... 
    Hourly pay
    Part time
    Work experience placement
    Work at office
    Local area
    Monday to Friday
    Flexible hours
    Shift work

    Council On Education For Public Health

    Washington DC
    1 day ago
  • $42.79 - $50.48 per hour

     ...Administrative AssistantThe Administrative Assistant will work directly with the client to provide a wide range of administrative support to advance goals pertaining to the client's inceptions. ACTIVE SECRET CLEARANCE REQUIRED.ResponsibilitiesKey ResponsibilitiesRepresent... 
    Local area
    Flexible hours

    Cayuse Holdings

    Washington DC
    22 hours ago

Do you want to receive more vacancies?

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