
Due to GZA's continued business growth and profitability, our Oak Brook, Illinois office is expanding! We are currently looking for a Billing Coordinator on a part time to full time schedule (24-40 hr/week) to join a team of dedicated Finance Professionals who are an integral part of GZA's business. If you are a self-motivated individual who can thrive in a high-volume billing environment, and want to be a part of GZA's success, apply today!
Key Duties:
Qualifications:
The base salary range for this position is $57,500 – $73,500 depending on experience and capabilities which will be assessed during the interview process.
About GZA:
GZA is a multidisciplinary, employee-owned engineering consulting firm consistently ranked among the ENR Top 500 Design Firms Our team of geotechnical, environmental, water, ecological, and construction management experts is united by a commitment to innovation, sustainability, and technical excellence.
We foster a culture that values collaboration, curiosity, and continuous learning When you join GZA, you’re not just an employee—you’re a stakeholder in a company that values your growth and contributions.
GZA GeoEnvironmental, Inc. is an Affirmative/Equal Opportunity Employer and does not discriminate on the basis of race, color, religion, national origin, ancestry, sex, sexual orientation, gender identity, physical or mental disability, citizenship status, marital or veteran status, age or other protected status.
Note to Staffing Agencies:
GZA GeoEnvironmental, Inc. and its subsidiaries do not accept unsolicited resumes from staffing agencies, recruiting firms, or other third parties. All unsolicited resumes will be considered a gift, and GZA will not be obligated to pay a referral fee. GZA explicitly reserves the right to hire those candidate(s) without any financial obligation to the recruiter or agency. This policy is in place to ensure we respect the relationships with our preferred vendors and avoid any potential misunderstandings.

Founded in 1964 as a soils and foundations specialty consultant, GZA GeoEnvironmental, Inc. (GZA) has grown into a full-service company providing its clients with highly diversified technical services supporting our core practice areas. GZA employs over 700 engineers, scientists, and technical support staff in 32 offices throughout the U.S. With a legacy of experience in geotechnical and environmental engineering, GZA's core offerings include water, ecology, and construction management services.