Administrative Assistant - Part-Time

Civil & Environmental Consultants, Inc.; Naperville (IL); On-site; USD 45,000 - 58,000; Part time

Benefits offered by this job

matching 401(k)

profit sharing

performance bonus

company stock

medical dental and vision insurance

short and long-term disability

tuition assistance

professional development

work-life balance

Job summary

Civil & Environmental Consultants, Inc. is seeking a Part-Time Administrative Assistant in our Naperville, IL office.

You will be the first point of contact, delivering exceptional customer service and supporting daily operations with the Office Operations Lead and Administrative Manager. Responsibilities include greeting visitors, handling phones, document prep, meeting coordination, and coordinating internal communications across teams.

Qualifications

• High school diploma or equivalent is required.
• Experience in an office environment is required.
• Excellent communication skills are essential.
• Attention to detail is essential.
• Proficiency with Microsoft Office (Word, Excel, Outlook) is required.

Responsibilities

• Greet guests and answer phones with professionalism.
• Prepare and reproduce documents, maintain electronic filing, and assist with QA reviews for proposals, reports, and plans.
• Coordinate meetings, office activities, and logistics for internal events, conferences, and training sessions.
• Manage office supplies—ordering, stocking, and ensuring availability.
• Support communication between corporate teams (accounting, operations, marketing, HR, IT) and local office staff.
• Draft and review documents, providing suggestions for improvement.
• Handle incoming and outgoing correspondence with accuracy and attention to detail.
• Communicate effectively with clients in person, by phone, and in writing.
• This role requires 20-30 hours a week.

Skills

Communication

Attention to detail

Office environment experience

MS Office proficiency

Education

High School diploma or equivalent

Tools

Microsoft Word

Microsoft Excel

Microsoft Outlook

Job description

As a Part-Time Administrative Assistant for Civil & Environmental Consultants, Inc. (CEC), in our Naperville, IL office, you’ll play a vital role in our business operations in helping to keep our office running smoothly and efficiently. This position is more than just administrative support; it’s about ensuring accuracy, professionalism, and a welcoming environment for our clients and team members alike. As the first point of contact for visitors and callers, you’ll set the tone for our office by providing exceptional customer service. You’ll also collaborate closely with the Office Operations Lead and Administrative Manager to support daily operations and contribute to organizational success.

What You will Do

• Greet guests and answer phones with professionalism
• Prepare and reproduce documents, maintain electronic filing systems, and assist with quality assurance reviews for proposals, reports, and plans
• Coordinate meetings, office activities, and logistics for internal events, conferences, and training sessions
• Manage office supplies—ordering, stocking, and ensuring availability
• Support communication between corporate teams (accounting, operations, marketing, HR, IT) and local office staff
• Draft and review documents, providing suggestions for improvement
• Handle incoming and outgoing correspondence with accuracy and attention to detail
• Communicate effectively with clients in person, by phone, and in writing
• 20-30 hours a week
• High School diploma or equivalent schooling experience
• Experience in an office environment
• Excellent communication skills
• Attention to detail
• Proficiency with Microsoft Office (Word, Excel, and Outlook)

We have experts! CEC is consistently ranked as a Top 500 Design Firm and Top 200 Environmental Firm by Engineering News-Record. We are looking for people who enjoy using their education and experience to solve difficult technical problems and work on interesting projects. You can accomplish this while working with a team of professionals who are equally motivated to provide high levels of service to our clients and to teach you along the way.

We have support! We have a variety of Employee Resource Groups, including CEC Community - focused on giving back to the communities in which we work; CEC Ignite - focused on helping professionals early in their careers to develop their pathway; CEC iDEA - focused on inclusion, diversity, equality, and acceptance; and CEC Women - focused on creating internal and external opportunities for women to network and leverage professional experience!

We care about our people! People and Culture are two of the five elements of our strategic plan. When you care about your people, they will want to grow a career with you - that is our goal. CEC offers you a small-firm work environment with large-firm opportunities. Not only will we help you develop professionally, but we will also provide an opportunity to become an owner of the firm and share in its success.

• matching 401(k)
• profit sharing
• a performance bonus
• company stock
• medical dental, and vision insurance
• short and long-term disability
• tuition assistance
• professional development
• work-life balance

CEC is an equal opportunity employer. We do not discriminate in recruiting, hiring or promotion based on race, color, religion, sex (including sexual orientation, gender identity or expression, transgender status), national origin, age, disability, protected veteran status or any other basis or characteristic prohibited by applicable federal, state, or local law.

The posting range for this position is between $45,000 - $58,000 based on experience and location (in addition, CEC offers overtime pay and other great benefits).