Office Administrator

Ready to elevate your career? GESI is expanding! We are officially hunting for our next Office Administrator in Vaughan, Ontario —someone ready to bring fresh ideas and grow alongside a dynamic team.

About Us
GESI: GFL Environmental Services Inc. ("GESI") is a high-growth environmental services company recently carved out of GFL Environmental Inc. Backed by leading private equity firms, GESI delivers liquid waste, industrial cleaning, and soil remediation services across North America through a vertically integrated platform of over 230 sites and a fleet of 1,800+ vehicles. Our employees, collectively known as 'Team Green,' enjoy numerous benefits: career advancement opportunities, competitive benefits, job stability within an essential services company, and the chance to make a positive impact every day for our customers and communities, Green for Life!

The Role
We are looking for a talented office Administrator to join our team. In this role, you will be responsible for providing high-level administrative support to the Executive Team (60%) and managing the daily onsite workplace experience (40%), while serving as the first point of contact for employees and visitors. You will work closely with the Executive Team, Operations, and Procurement leaders to ensure seamless operations and a professional, positive workplace experience.

The role reports to the Executive assistant.

Key Responsibilities

Manage executive calendar and meeting logistics across various time zones

Arrange international travel and accurately prepare and track executive expense reports

Act as the first point of contact for visitors and maintain the reception area

Oversee building maintenance requests and manage security access badges

Monitor, order, and stock all general office, kitchen, and promotional inventory

What We’re Looking For (Qualifications)

Experience:

3+ years of professional experience in office administration.

Education:

Post-secondary education in administrative support, office administration, or a related field is preferred.

Technical

Skills:

Google Workspace (Docs, Sheets, Slides, Gmail)

Soft Skills:

Extreme attention to detail; a polished and professional demeanor; and a self-starter work ethic with high autonomy.

Location
This is a 100% onsite role based in Vaughan, ON, with a planned permanent relocation to Markham, ON, in October 2026.

Mobility Requirement
Must possess a valid G License and have everyday access to a reliable vehicle.

What We Offer
Why join us? We believe in taking care of our team. Here is a snapshot of our total rewards you can expect:

Health:
Comprehensive medical, dental, and vision insurance.

Wellness:
Employee Assistance Program, life insurance, and paid time‑off.

Financial: RRSP matching, profit sharing and competitive wages.

Culture:
Growth opportunities and continuous learning opportunities.

Join us and become part of "Team Green" at GFL Environmental, where your skills and dedication will be valued and rewarded. Apply now for this exciting opportunity!

#GFLTalent

We thank you for your interest. Only those selected for an interview will be contacted.

GFL is committed to equal opportunity for all, without regard to race, religion, color, national origin, citizenship, sex, sexual orientation, gender identity, age, veteran status, disability, genetic information, or any other protected characteristic. If you are interested in applying for employment and need special assistance or an accommodation to apply for a posted position, please contact my Please note that GFL does not provide visa sponsorship for this position.

Valid work authorization in the country where the job is located is required. Successful candidates will be required to provide valid documentation confirming their eligibility to work in the country where the job is located prior to their start date.

This hiring process may utilize machine-based systems to assist in screening and assessing applicants. Final selection decisions are made by our recruitment team.

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