Assistant Office Manager

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Location: Midtown NYC (Hybrid – 3 Days In-Office)

Salary: Up to $90,000 (commensurate with experience)

Schedule: Full-Time, Monday–Friday

As the Assistant Office Manager, you’ll play a critical role in supporting the day-to-day administrative operations of our mid-sized law firm. Working directly with the Office Manager and managing partners, you’ll ensure smooth internal processes, manage administrative reporting, and support the financial and HR functions of the firm. You’ll be a go-to problem solver who thrives on multitasking and interacting across all levels of the firm.

Key Responsibilities:

• Assist with monthly billing
  , including posting client expenses in Timesl and Quick Books, and preparing LEDES
  1998-compliant invoices
• Manage accounts payable/receivable and collections
  , including bank deposits and client trust fund transactions
• Maintain vendor relationships, handle, and ensure invoice accuracy and status tracking
• Process expense reimbursements and assist with budgeting
• Support onboarding and training of new employees, including documentation and orientation
• Help coordinate HR functions and benefits administration
• Maintain and manage client and firm records via File Vine
• Communicate effectively with firm leadership, attorneys, staff, and vendors
• Balance multiple priorities and support various administrative tasks as needed

• 3–5 years
  of administrative experience in a law firm or professional services
• Proven ability to multitask in a fast-paced setting and respond effectively to changing priorities
• A
  team-player mentality
  , willing to learn and adapt before offering process suggestions
• Strong written and verbal
  communication skills
• Highly organized with excellent
  attention to detail
  and time management
• High level of
  discretion and professionalism
  with confidential information
• Proficiency in
  Quick Books, Microsoft Outlook, Word, and Excel
• Experience with
  Timeslips
  and/or legal billing software preferred
• Familiarity with
  HR and benefits administration
  a plus
• Positive, collaborative demeanor and comfort interacting across all departments

This is a great opportunity for someone looking to step into a high-impact role with the opportunity to grow. You’ll join a respected team, gain exposure to firm operations, and become a trusted right-hand to the Office Manager and firm leadership. We offer a collaborative, stable work environment and are seeking someone who values long-term professional growth.