Demo

Office Assistant

Thornton Tomasetti
Chicago, IL Full Time
POSTED ON 12/12/2025 CLOSED ON 12/17/2025

What are the responsibilities and job description for the Office Assistant position at Thornton Tomasetti?

Thornton Tomasetti applies engineering and scientific principles to solve the world’s challenges. An independent organization of creative thinkers and innovative doers collaborating from offices worldwide, our mission is to bring our clients' ideas to life and, in the process, lay the groundwork for a better, more resilient future. We provide support and opportunities to our employees to achieve their full potential and cultivate a rewarding career.

The Role

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

Compensation

The rate for this position generally is $24 - $30 hourly. This range is a good faith estimate provided pursuant to the Illinois State Pay Transparency Law. It is based on what a successful Illinois State applicant might be paid and assumes that the successful candidate will be in Illinois State or perform the position from Illinois State. Similar positions located outside of Illinois State will not necessarily receive the same compensation. Actual pay rates may vary from the range, as permitted by Illinois Equal Pay Transparency Law. Compensation offers will be based on various factors, including operational needs, individual education, qualifications and experience, work location and comparison to employee already in the role, as well as other considerations permitted by law. A potential new employee’s pay history will not be used in compensation decisions.

Benefits

Depending on your employment status, benefits may include:

  • Medical, Dental, Vision, Life, AD&D, Disability and other voluntary benefits
  • Flexible Spending Accounts for Medical and Childcare
  • Paid Time Off, Family Leave for New Parents, Volunteer Time
  • Tuition Reimbursement
  • Commuter Transit (where available)
  • 401k retirement savings with Company matching on employee contributions and/or qualified student loan repayments
  • Fitness Reimbursement
  • And other various wellness, diversity/inclusion and employee resource programs and initiatives

Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Thornton Tomasetti is proud to be an equal employment workplace. Individuals seeking employment at Thornton Tomasetti are considered without regards to age, ancestry, color, gender (including pregnancy, childbirth, or related medical conditions), gender identity or expression, genetic information, marital status, medical condition, mental or physical disability, national origin, protected family care or medical leave status, race, religion (including beliefs and practices or the absence thereof), sexual orientation, military or veteran status, or any other characteristic protected by federal, state, or local laws.

Thornton Tomasetti Global Terms of Use and Privacy Statement

Carefully read these Terms of Use before using this website. Your access to and use of this website and application for a job at Thornton Tomasetti are conditioned on your acceptance and compliance with these terms.

Please access the linked document by clicking here, select the country where you are applying for employment, and review. Before submitting your application you will be asked to confirm your agreement with the terms.

Beware Of Recruitment Fraud: Scammers may attempt to impersonate Thornton Tomasetti. Messages from our firm come only from the ThorntonTomasetti.com domain, Thornton Tomasetti does not use any third-party recruiters. When in doubt, please contact us through our web form here and see how you can protect yourself online here.

Salary : $24 - $30

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