Jobs · Administrative · California

Seasonal Administrative Assistant

Platform Accounting Group · Costa Mesa, CA · 1 wk ago
Administrative$20–$25/hrTemporary

This is a seasonal position with around 40+ hours per week, starting as soon as possible through October 15, 2026.

About Us

Platform Accounting Group is a rapidly growing professional services firm providing tax, accounting, assurance, IT consulting, and wealth management services to small and medium-sized businesses and their owners. We currently have 50+ offices in 15 states with much more growth on the horizon. We fully understand that every employee has different needs, so our unique business model allows for more flexible work arrangements than most firms can offer. Enjoy a professional and dynamic work environment while making work/life balance a priority.

Responsibilities

  • Organize, scan, file, and upload documents to project software, document storage systems, and web portals
  • Set up, modify, and close vendor accounts as needed
  • Update service plans and manage changes to vendor services
  • Maintain and update mailing and billing address information across accounts
  • Resolve vendor disputes directly or in coordination with credit card companies
  • Update and track spreadsheets related to property & casualty insurance policies, medical insurance claims, and other administrative records
  • Download, organize, and prepare invoices and statements for Accounts Payable processing
  • Utilize strong Adobe skills to edit, combine, bookmark, and organize PDF documents
  • Easily learn and adapt to new technology and work across multiple systems
  • Execute detailed procedures for each step of projects and internal processes with a high level of accuracy
  • Communicate professionally with clients via email and phone; schedule meetings with staff as needed
  • Demonstrate strong attention to detail, analytical skills, and the ability to manage multiple priorities with a flexible and positive attitude

Requirements

  • Professional office experience (1 year or more)
  • Proficient with Microsoft Office suite
  • Advanced knowledge of Adobe Acrobat for creating, editing, and organizing PDF documents
  • Attention to detail and ability to multi-task
  • Excellent verbal and written communication skills
  • Independent worker and learner, willingness to take on new tasks
  • Ability to self-manage projects, proactive problem solving, analytical skills
  • Ability to learn, understand, and utilize new technology systems quickly

Pay

The expected salary range for this role is $20 - $25 per hour. Compensation decisions depend on numerous factors including bona fide qualifications and the facts and circumstances of each case at the time of hiring. Relevant qualifications include, but are not limited to, employee education, training, skillset, credentials/certifications, relevant work experience, geographic work location (including if the employee will be hybrid or fully in-office), the scope and responsibilities of the role, internal level and peer equity, and market considerations.

Schedule

Seasonal position with around 40+ hours per week, starting as soon as possible through October 15, 2026.

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