Executive Assistant

Executive Assistant

Castleton Commodities International, a leading Merchant Commodity Trading and Investment firm, is hiring an Executive Assistant for our London office. We are seeking an experienced Executive Assistant to support a Senior Management Team member and their respective organization.

The position requires a flexible administrative professional who can assist multiple business units within CCI, ensuring smooth coordination and efficient operations throughout the organization, as well as collaborating across the admin function. The ideal candidate thrives in a fast‑paced environment, is highly organized, professional, proactive, collaborative, and an effective problem solver.

• Heavy calendar/phone management; internal/external meetings and conference calls (between multiple time zones)
• Manage high volumes of international and domestic travel including expense tracking, and invoicing.
• Prepare and edit correspondence, presentations, reports, and other documents.
• Prepare and distribute agendas (including updating PowerPoint Presentations) and other materials for meetings.
• Prepare and submit weekly expense reports through Concur and handle paper submissions as needed for the SMT member and their organization.
• Assist with the management and processing of invoices.
• Handle incoming calls and welcome CCI visitors at reception.
• Handle confidential information with discretion and professionalism.
• Effectively collaborate with other areas of the firm.
• Coordinate office events, meetings, and conferences, including logistics and catering arrangements.

• Minimum of 5 years of prior experience in an Executive Administrative role in a fast‑paced environment. Ideal candidates have had experience working in a smaller office environment performing a hands‑on role with multiple stakeholders.
• Exceptional organizational skills and attention to detail.
• Strong written and verbal communication skills.
• Ability to prioritize tasks and manage changing priorities in a deadline‑driven environment.
• Demonstrated ability to collaborate effectively with all levels of employees.
• Proficiency in Microsoft Outlook, Word, Excel, PowerPoint, and SAP Concur.

• Competitive comprehensive medical, dental, retirement and life insurance benefits
• Employee assistance & wellness programs
• Parental and family leave policies
• CCI in the Community:
  Each office has a Charity Committee and employees are allocated 2 days annually to volunteer at the selected charities.
• Charitable contribution match program
• Tuition assistance & reimbursement
• Quarterly Innovation & Collaboration Awards
• Employee discount program, including access to fitness facilities
• Competitive paid time off
• Continued learning opportunities

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London, England, United Kingdom

Mid-Senior level

Full-time

Administrative

Investment Management

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