We are looking for an experienced Office Manager to provide hands-on administrative and operational support for a busy team in Mississauga, Ontario. This Long-term Contract opportunity is ideal for someone who is highly organized, self-directed, and comfortable managing both executive support duties and day-to-day office coordination in a fast-paced environment. The successful candidate will bring strong judgement, attention to detail, and the ability to keep priorities moving smoothly while handling confidential information with professionalism.<br><br>Responsibilities:<br>• Provide senior-level administrative support by preparing documents, presentations, and correspondence for leadership and internal teams.<br>• Coordinate meetings, calendars, and office events while ensuring conference rooms and shared spaces are scheduled effectively.<br>• Manage expense submissions and reconciliation activities with accuracy, including follow-up on invoices and related records.<br>• Oversee daily office operations such as incoming mail, package handling, storage organization, and vendor coordination.<br>• Maintain a proactive working relationship with external service providers, including office facilities and storage partners, to support smooth operations.<br>• Partner with internal teams such as IT to address office needs, resolve issues promptly, and improve administrative processes.<br>• Create and maintain clear process documentation to support consistency, efficiency, and knowledge sharing across office functions.<br>• Communicate regularly with senior leadership by providing timely updates, coordinating requests, and supporting shifting business priorities.