Senior Administrative Assistant

Duration: 2-3 months, potential to extend – immediate joining

Schedule: Full-Time, Monday–Friday, 8am – 4pm

We are currently seeking top talent for an experienced Senior Administrative Assistant job opening in Markham, Ontario in the corporate office of a medical setting. In this full‑time, interim opportunity, you will be responsible for providing a high level of administrative support to a number of Directors with various support functions – note this position is a fully on‑site role. As an experienced Administrative Professional, you will use your skills and experience to provide executive level support functions while multi‑tasking and prioritizing the work and needs s role is ideal for someone who thrives in a fast‑paced environment, handles confidential information with discretion, and enjoys making an impact across multiple portfolios.

What You’ll Do:

• Provide high level calendar management with emphasis on proactive planning, scheduling internal and external client meetings
• Prepare agendas, attend the meetings and take minutes
• Draft and prepare correspondence, emails, reports and create presentations with detail and timeliness
• Manage expenses, enter and process expense reports with accuracy
• Support project documentation, funding letters, and departmental initiatives
• Handle procurement requests, reimbursements and basic financial documentation
• Maintain program records, manuals and administrative systems
• Provide office coordination functions including payroll support, filing, and data entry
• Other duties as assigned

What You Bring:

• At least 5+ years of senior level Administrative Assistant experience
• Degree in business/administration (or related)
• Strong MS Office skills (Word, Excel, PowerPoint, Visio, Publisher);
  Meditech is a plus
• Excellent communication, organization and problem‑solving abilities
• High level of professionalism, judgment and attention to detail
• A positive, can‑do and self‑motivated worker with the ability to work together as a team
• A high level of trust and discretion at all times; strong and confident personality to keep to the business functions of the role
• Someone who flourishes in a diverse workplace and takes pride in their role within the team/organization.

Our client offers a passionate, diverse, busy and dynamic work setting working for driven professionals whose focus it is to give back and provide the tools and support for the health and wellbeing of their clients. If you are interested in this interim Executive Assistant job opening in Markham, ON and meet the minimum qualifications as listed, do not wait to apply.

Please note this is an interim temporary role that is on‑site and would require full‑time, business hours starting as soon as possible.

Vacancy Status: This posting is for an existing vacancy.

At Adecco our purpose is simple: to make the future work for everyone. We live our values, Passion, Collaboration, Inclusion, Courage, and Customers at Heart, by fostering a workplace where diversity is celebrated and every voice matters. We encourage applications from individuals of all backgrounds and identities. Together, we’re making the future work for everyone.