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Administrative Assistant and Office Manager, Family Office

Job in Ardmore, Delaware County, Pennsylvania, 19003, USA
Listing for: The Sidewater Group
Full Time position
Listed on 2026-07-01
Job specializations:
  • Administrative/Clerical
    Office Administrator/ Coordinator, Virtual Assistant/ Remote Admin, Clerical
  • Business
    Office Administrator/ Coordinator
Salary/Wage Range or Industry Benchmark: 50000 - 70000 USD Yearly USD 50000.00 70000.00 YEAR
Job Description & How to Apply Below

We are seeking a highly organized, discreet, and proactive Administrative Assistant to support the daily operations of a private family office. This role offers the opportunity to work closely with family members, executives, advisors, and service providers in a professional and fast-paced environment. Applicants shouldbe self starters able to work both independently and with a team.

The ideal candidate will be detail-oriented, adaptable, and capable of handling a wide range of administrative responsibilities while maintaining strict confidentiality.

Key Responsibilities
  • Maintain confidential files, records, and contact databases with a high degree of discretion
  • Manage office operations, management systems and software, process-invoices, expense reports, reimbursements and basic bookkeeping tasks
  • Liaise with vendors, advisors, household staff, attorneys, accountants, and other external partners
  • Support document management, filing, and record retention processes
  • Screen calls, emails, and other communications; prioritize and respond appropriately
  • Prepare correspondence, reports, presentations, and meeting materials
  • Aid in the generation of financial reports
  • Assist in handling both personal and business related tasks
  • Handle ad hoc requests and provide general administrative support as needed
Skills & Qualifications
  • 5 - 8 years of administrative experience, preferably within a family office, private office, financial services, or professional services environment
  • Bachelor's degree preferred o r equivalent professional experience
  • Strong proficiency in Microsoft Office Suite and calendar management systems with high proficiency in excel reporting
  • Excellent written and verbal communication skills
  • Exceptional time management, organizational, and multitasking abilities
  • High level of discretion and professionalism when handling sensitive information
  • Strong interpersonal skills and a client-service mindset
  • Familiarity with accounting or expense management software
Preferred Skills
  • Experience supporting high-net-worth individuals or executives
  • Comfort working in a small, collaborative office environment
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