Administrative Assistant - Onsite Office Ops (6-Month)

Performix; Horsham; On-site; GBP 19,000 - 29,000; Full time

Job summary

Performix is seeking an Administrative Assistant to support daily onsite office operations in Horsham. The role involves administrative duties, room scheduling, visitor check-in, and assisting with events and light bookkeeping.

The ideal candidate has 2+ years in administrative roles, is highly organized, and proficient in MS Office, Teams, and SharePoint. This on-site position requires independence and reliability for a 6-month contract with potential extension.

Qualifications

• 2+ years in administrative or office coordination roles.
• Strong organizational and customer service skills.
• Proficiency with Word, Excel, Outlook, PowerPoint; Teams/SharePoint preferred.
• Detail-oriented with ability to work independently.
• Experience with basic bookkeeping or invoicing preferred.

Responsibilities

• Support daily office operations and provide general administrative support as needed.
• Ensure meeting rooms are clean, organized, stocked, and ready for use, and assist with room scheduling and coordination as needed.
• Support visitor check-in and help create a welcoming onsite experience.
• Maintain office and kitchen supplies, including purchasing, stocking, and inventory management.
• Assist with the coordination and execution of office events and activities, both onsite and offsite.
• Assist with monthly newsletter creation and other employee communications.
• Maintain organized files, records, and administrative documentation.
• Provide administrative and project support for the Horsham office and assist other U.S. branch locations as needed (no travel required).
• Setup projects in company systems and ensure timely processing of information.
• Create subcontractor agreements and process change orders.
• Submit subcontractor invoices for processing.
• Submit requests for new vendor and customer setup, including subcontractor pre-qualification support.

Skills

MS Office

Communication

Multi-tasking

Customer service

Teamwork

MS Teams

SharePoint

Tools

Microsoft Teams

SharePoint

Job description

Performix is seeking an Administrative Assistant to support daily onsite office operations in Horsham. The role involves administrative duties, room scheduling, visitor check-in, and assisting with events and light bookkeeping.

The ideal candidate has 2+ years in administrative roles, is highly organized, and proficient in MS Office, Teams, and SharePoint. This on-site position requires independence and reliability for a 6-month contract with potential extension.