Source Job

US

  • Provide high-level administrative support to the Tax Team, including scheduling meetings, travel, and conferences.
  • Manage tax return delivery, e-filing, and coordination of signed authorizations for the department.
  • Handle expense reports, client correspondence, and due date reporting to meet IRS and tax authority deadlines.

Administrative Support Microsoft Excel Microsoft PowerPoint Microsoft Word Communication

20 jobs similar to Seasonal Office Support Administrator

Jobs ranked by similarity.

$20–$22/hr
United States

  • Provide administrative assistance to the Absence Vice President and Operational Leaders, including meeting minutes, scheduling, and data entry.
  • Create data visuals, presentations, and communication materials, and book travel or reconcile expense reports.
  • Run routine reports, create summaries, and support the team with clear written and verbal communication.

ComPsych is the worldwide leader in organizational mental health, well-being, and absence management, igniting human potential in workplaces globally. For over 40 years, they have supported more than 75,000 customers and 160 million lives across 200 countries, with 40% of the Fortune 500 choosing them.

Global

  • Provide general administrative support to the office manager and wider team.
  • Produce reports using Microsoft Office packages for managers.
  • Log materials and planning information with attention to detail.

IES Cotes Baixes is a company focused on administrative support and planning services. They offer a remote working environment and are building a collaborative team.

US Unlimited PTO

  • Provide comprehensive administrative support to physicians, nurses, analysts, and other staff, including scheduling, report distribution, and client communication.
  • Manage peer review scheduling, PTO tracking, and supplemental reimbursement submissions for Physician Advisors, collaborating across multiple time zones.
  • Maintain department email inbox, update contact details, and cross-train with other clinical administrative staff to ensure seamless coverage.

Xsolis is an AI-driven technology company reducing administrative waste in healthcare by enabling smarter collaboration between providers and payers. Recognized on the Inc. 5000 and Deloitte Technology Fast 500 lists, we are one of the fastest-growing privately-held companies in the country, headquartered in Franklin, TN.

US

  • Provide administrative support including meeting preparation, correspondence, report preparation, and document processing.
  • Accurately maintain personnel records, post rulings, enter meeting minutes, and handle confidential information.
  • Operate standard office equipment, multi-task under pressure, and communicate effectively with clients and team members.

Integreon is a trusted global provider of award-winning legal and business solutions to leading law firms, corporations, and professional services firms. The company employs around 3,500 staff globally, offering multi-lingual, around-the-clock support with a dynamic and creative culture.

$19–$21/hr
US 3w PTO

  • Support administrative tasks for operations including developing SOPs and presentations.
  • Manage Teams channels and communications.
  • Create a new SharePoint site and organize internal communications teams structure.

CALSTART is a mission-driven industry organization focused on transportation decarbonization and clean air for all. It has a tight-knit team of innovators and change agents who believe passionately in their mission.

$65,000–$75,000/yr
US

  • Responsible for day-to-day administrative, operational, and coordination activities supporting a single government IT program.
  • Manages administrative workflows, coordinates across internal support functions, and ensures execution discipline across Agile teams.
  • Provides limited support to budget execution, including invoice coordination, travel processing, and basic financial tracking.

Agile Defense provides adaptive innovation to support the nation's most important missions through advanced technology integration and elite minds. The company fosters a culture built on six core values—Happy, Helpful, Honest, Humble, Hungry, and Hustle—and prioritizes its employees as family.

US

  • Manage daily settlement pipeline and exception reporting for payment setup and clearing process.
  • Communicate with creditors and agencies to clear payment exceptions and uncleared payments.
  • Support acquisition of required documentation for payment remittance and maintain deposit account balances.

Beyond Finance helps Americans escape debt and achieve financial stability through personalized financial solutions. They have helped over 1 million clients and foster a collaborative, forward-thinking culture.

$2,400–$2,600/mo
LATAM Africa Eastern Europe

  • Provide administrative and operational support across client accounts, including report generation, document management, and order processing.
  • Serve as a primary point of contact for client inquiries, resolving issues through effective communication and collaboration.
  • Assist with project coordination, data analysis, and process improvement initiatives to ensure efficient fulfillment operations.

Scale Army Careers is a staffing firm that connects professionals with contract roles in logistics and operations. They offer remote opportunities and emphasize a collaborative, client-focused culture.

$65,000–$85,000/yr
US

  • You will maintain and support client benefits websites, document processes, and provide advanced operational and technical support.
  • You will resolve client issues, triage tickets, and communicate proactively with clients.
  • You will mentor team members, drive process improvements, and support implementations.

bswift is a leading benefits administration company that simplifies the complex world of employee benefits. We serve thousands of companies and millions of people nationwide, offering a fun, flexible, and creative environment.

US

  • Provide administrative support to attorneys, including pleadings, discovery, motion preparation, and e-discovery.
  • Manage case management, docketing, document review, and exhibit preparation with strong attention to detail.
  • File and serve documents in California and out-of-state courts, including e-filing in state and federal courts.

Gordon Rees Scully Mansukhani is a national law firm with offices in all 50 states. The firm offers a friendly, business casual environment with competitive compensation and a full benefits package.

US

  • Manage administrative and financial aspects of equipment and software leases, ensuring accurate funding, billing, and documentation.
  • Review lease agreements, credit approvals, and invoices for accuracy and compliance.
  • Partner with Finance and internal teams to support reconciliations and resolve discrepancies.

Quadient supports businesses of all sizes in their digital transformation and growth journey, unlocking operational efficiency with reliable, secure, and sustainable automation processes. The company fosters a diverse, collaborative culture where employees can grow and make an impact.

United States

  • Coordinate day-to-day execution of project activities across multiple workstreams.
  • Schedule meetings, workshops, and stakeholder engagement activities, preparing agendas and tracking action items.
  • Maintain project schedules, deliverable trackers, documentation, and support onboarding and reporting activities.

Allegheny Science & Technology (AST) provides science and technology services, supporting federal programs in areas like AI readiness. They are a focused company with a small team culture, emphasizing collaboration and project execution.

US 8w paternity

  • Provide high-level service and support to Wealth Management Teams, acting as liaison with Corporate Trustee partners.
  • Process and monitor multi-transactional requests, including receipts, disbursements, and unique asset paperwork.
  • Investigate and resolve operational questions, perform quality control reviews, and maintain internal procedures.

Mercer Advisors has been helping families amplify and simplify their financial lives for over 40 years by integrating financial planning, investment management, tax, estate, insurance, and more. The firm serves over 31,300 families across 90+ U.S. cities and is ranked #1 RIA firm by Barron's, with a culture where more than half of employees are women.

US

  • Own tax notice issues end-to-end across federal, state, and local agencies.
  • Communicate directly with partners about notices and tax accounts, translating complex agency interactions into clear updates.
  • Act as the direct point of contact with agencies, using portals, email, or phone to drive resolution.

Check is an embedded payroll platform that simplifies how businesses pay employees and manage taxes. It has a distributed team across the US that values ownership, collaboration, and creative problem-solving.

US

  • Own end-to-end U.S. sales and use tax compliance and Canadian GST/HST filing across multiple jurisdictions.
  • Review VAT/GST returns prepared by third parties for international jurisdictions and ensure timely accurate submissions.
  • Provide administrative support to the Tax Department, including audit assistance, reconciliation, and process improvement.

Momentive Software provides cloud-based software and services to mission-driven nonprofits and associations, helping them engage communities, simplify operations, and grow revenue. They serve over 20,000 organizations globally and have a purpose-driven, inclusive culture.

US

  • Provide professional client support by managing inquiries, maintaining records, and coordinating administrative tasks.
  • Respond to client calls and emails, assist with billing, and prepare reports and correspondence.
  • Work independently in a remote environment to ensure a positive client experience.

A-Core Industrial Services provides concrete cutting, demolition, core drilling, and specialty construction services. Since 1974, they have served commercial and industrial clients across the US with a focus on safety, quality, and customer service.

US Unlimited PTO

  • Support day-to-day program activities by coordinating meetings, preparing agendas, and tracking action items.
  • Assist in developing project deliverables, executive briefings, status reports, and dashboards.
  • Collect and analyze project information to support reporting and data-driven decision-making.

Ibility is a Service-Disabled Veteran-Owned Small Business and a Woman-Owned Small Business, headquartered in Gaithersburg, MD. The company is a small but mighty firm positioned for rapid growth, helping government leaders achieve their mission through human-centered design and creative products.

  • Manage daily job scheduling using Simpro and coordinate technician schedules.
  • Handle customer inquiries professionally and maintain organized digital files.
  • Assist with basic Xero administration and follow up on outstanding invoices.

VA4U provides virtual administrative assistant services to businesses. They are a growing company with a supportive and collaborative culture.

Canada

  • Provide internal IT support across end-user computing, Microsoft 365, identity, and technology infrastructure.
  • Administer and troubleshoot Microsoft 365 services including Exchange Online, Teams, SharePoint, and security settings.
  • Support Windows Server, Active Directory, endpoint management, and contribute to automation projects using PowerShell.

Quadbridge is a fast-growing North American IT solutions provider that empowers businesses through strong partnerships with leading technology providers. With offices in Kitchener, Montreal, and Vancouver, they foster an energetic, collaborative workplace where ambitious teammates thrive.

Canada

  • Provide comprehensive administrative support including reports, correspondence, presentations, research, and business documentation.
  • Manage calendars, appointments, meetings, conference calls, and event coordination to ensure organized and efficient schedules.
  • Coordinate team meetings, special projects, and administrative initiatives while preparing meeting materials and following up on action items.

Jobgether is a platform that uses AI-powered matching to connect job seekers with hiring companies. As a partner company, they manage applications and next steps for this role in a collaborative virtual work environment.