Location: Mississauga, ON (On-site, Monday to Friday, 5 days per week)
Language: Strong written and verbal communication skills in English required
Background Check Requirement: Criminal background check and professional references required
Our client is a respected, established organization looking for an Administrative Services Administrator to support an important operational initiative. This position is focused on providing administrative coordination and investigative support during a period of organizational transition, helping ensure processes remain accurate, organized, and on track.
Working alongside an experienced administrative team, you'll contribute to projects that require strong attention to detail, problem-solving, and the ability to manage information effectively. This opportunity is well suited to someone who enjoys working behind the scenes to keep operations running smoothly while supporting continuous improvement.
What You'll Gain Build valuable experience within a large corporate organization while collaborating across multiple departments
Join a supportive team that values communication, professionalism, and shared success
Opportunity for contract extension or long-term employment based on business needs and performance
Free onsite parking and a consistent Monday to Friday schedule that promotes work-life balance
Your Responsibilities
Support business operations by coordinating administrative tasks, tracking project progress, and maintaining organized documentation.




Assist with information gathering and research by reviewing records, verifying details, and preparing summaries to support business decisions.
Maintain accurate electronic and paper filing systems, ensuring records are organized, up to date, and handled confidentially.
Draft emails and other correspondence, respond to inquiries, and monitor follow-up activities to keep work moving efficiently.
Use multiple computer systems to enter, update, and reconcile information while maintaining data accuracy across platforms.
Apply basic math skills to verify information, complete reconciliations, and interpret numerical data within reports.
Skills and Qualifications
At least 1 year of administrative or office support experience
Proficiency with Microsoft Office, including strong Excel skills
Excellent written and verbal communication with a professional approach
Strong organizational skills and exceptional attention to detail
Confidence working with data, reports, and basic numerical information
A positive attitude, adaptability, and a willingness to learn in a fast-paced workplace
All qualified applicants will receive fair consideration for employment. We welcome individuals of all backgrounds, experiences, and identities including those who identify as women, members of racialized groups, Indigenous Peoples, persons with disabilities, and 2SLGBTQIA+ communities. If you require an accommodation, please review our accessibility policy and reach out to our accessibility officer with any questions.

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📌 Administrative Assistant (Ontario)
🏢 Altis Technology
📍 Ontario