Entry Level Office Assistant Jobs in Thornton Tomasetti Chicago, IL

Thornton Tomasetti is seeking a proactive and organized Office Assistant to support our Chicago office. This role is ideal for someone who enjoys creating a smooth, welcoming office environment and has a strong can-do attitude. You’ll be at the center of office operations, helping our teams stay efficient and supported.

Responsibilities:

• Answer and monitor the main office line via Microsoft Teams
• Assist with setup and cleanup for Thornton Tomasetti Events
• Handle lunch coordination, ordering, and cleanup for office events
• Manage office supply ordering and vendor communication
• Maintain a clean, organized, and professional office appearance
• Provide general administrative support to the Office Manager and Office Directors

Requirements:

• 0–3 years of administrative experience
• Proficiency in Microsoft Word, Excel, Outlook
• Strong organization, multitasking, and customer-service mindset