Office Manager / Executive Assistant in London

A highly regarded international trade and investment organisation is seeking a commercially minded and highly capable Office Manager / Executive Assistant to oversee the financial operations and day-to-day management of its London office, while supporting senior leadership across the UK, Europe, the Middle East, Asia and North America. This is a broad and fast-paced role combining office management, executive support, finance coordination and stakeholder engagement within a diplomatic and internationally focused environment. The successful candidate will play a key role in ensuring the smooth operational and financial running of the office, while acting as a trusted support to senior leadership and international colleagues. The ideal candidate will be highly organised, proactive and commercially astute, with the ability to manage multiple priorities and operate confidently within a high-performing international environment.

Responsibilities include:

• Providing high-level EA support including complex diary management, international travel coordination, meetings and expenses
• Overseeing the day-to-day operations, administration, suppliers and facilities management of the London office
• Supporting finance processes including budgeting, reconciliations, invoices, expense claims, banking and liaison with payroll providers
• Managing office systems, reporting, records and operational processes
• Coordinating international visits, delegations, events, conferences and stakeholder meetings across the UK and Europe
• Assisting with HR administration including onboarding, payroll coordination and employee records
• Supporting the preparation of presentations, briefing documents, reports and research projects
• Assisting with LinkedIn content and digital communications to promote organisational activity and engagement
• Acting as a key liaison across internal teams, international offices and external stakeholders
• Supporting travel logistics and scheduling for senior leadership and visiting delegations
• Maintaining a highly professional, welcoming and efficient office environment

What we are looking for:

• Previous experience within an Office Manager, Executive Assistant, Operations or senior PA role
• Strong finance and accounting exposure including budgeting, reconciliations, expenses, bookkeeping or office finance administration
• Excellent organisational skills with the ability to manage multiple priorities simultaneously
• Experience supporting senior executives within fast-paced international or corporate environments
• Confident coordinating events, stakeholder engagement and office operations
• Excellent written and verbal communication skills
• Highly polished, proactive and emotionally intelligent approach
• Calm under pressure with exceptional attention to detail
• Strong Microsoft Office skills, particularly Outlook, Word and Excel
• Experience using LinkedIn and digital communication tools advantageous
• Adaptable, hands-on and collaborative working style

Experience within government, international organisations, professional services, trade bodies or globally focused businesses would be highly advantageous. This is an excellent opportunity for a polished and commercially minded operations professional seeking a broad and impactful role within a highly respected international organisation.