Executive Assistant​/Office Manager

Executive Assistant / Office Manager

Gresham Legal - Litigation Law Firm

Full-time, based in London Office

We are a boutique litigation law firm, advising on complex and high-value disputes. We are seeking an experienced Executive Assistant / Office Manager to take a central role in supporting the partners and ensuring the effective day-to-day operation of the firm.

The role combines senior-level executive assistance with responsibility for office management, financial administration, and practice support. It will suit an individual with prior experience in a law firm or professional services environment who is confident operating with autonomy and judgment.

Key elements of the role include:

• High-level executive support to partners
• Office and facilities management
• Legal cashiering and billing administration using Cashroom and Efimis
• Practice and matter administration
• Marketing, CRM, and business development support
• HR and people-related administration

The Executive Assistant / Office Manager is responsible for providing senior, proactive support to the partners while overseeing the operational, administrative, and financial infrastructure of the firm. The role requires a strong understanding of how a litigation practice operates, including partner workflows, billing cycles, client service expectations, and regulatory discipline.

• Executive & Partner Support
  :
  Act as primary executive support to partners, manage complex diaries, workflows, correspondence, and action tracking; act as a trusted gatekeeper.
• Office Operations
  :
  Oversee daily facilities, front-of-house, client hospitality, supplier relationships, and health & safety compliance.
• Finance & Cashiering
  :
  Day‑to‑day administration, legal cashiering via Cashroom and billing/invoicing via Efimis monitor WIP, and drive timely billing and liaise with finance providers.
• Practice Administration
  :
  Oversee administrative processes and optimise the iManage document management system.
• Marketing & Business Development
  :
  Coordinate pitches, firm‑wide marketing and business development, directory submissions, CRM data integrity, and client events.
• HR & IT Logistics
  :
  Handle day‑to‑day HR administration and act as first point of contact for queries (recruitment, onboarding, records, training) and serve as the on‑site liaison for outsourced IT.
• Process Improvement
  :
  Optimise Microsoft 365 usage and identify operational efficiencies.

• Significant experience as an Executive Assistant, Office Manager, Practice Manager, or senior legal support professional.
• Prior experience within a law firm or professional services environment.
• Practical experience using Cashroom for legal cashiering and Efimis for client billing.
• Strong understanding of billing cycles, WIP management, and financial administration in a legal practice.
• Experience with document management systems, ideally iManage.
• Advanced proficiency in Microsoft 365 (Outlook, Word, Excel, Powerpoint, Teams).
• Excellent organisational, drafting, and prioritisation skills.
• High level of discretion and sound judgment when handling confidential matters.
• Proactive, reliable and highly organised.