Senior Administrative Assistant

Quantum Management Services Ltd; Toronto; Hybrid; CAD 41,000 - 48,000; Full time

Job summary

Quantum Management Services Ltd is seeking a Senior Administrative Assistant for a downtown Toronto team on a 6-month contract with hybrid work. You will support senior stakeholders, manage calendars, travel, prepare reports and presentations, and maintain confidential documents.

The ideal candidate has 3–5+ years of relevant experience, exceptional organization, and strong Microsoft Office skills. The role offers an opportunity to work closely with senior leadership in a professional,

Qualifications

• 3–5+ years in administrative or executive support roles.
• Experience supporting senior stakeholders and managing competing priorities.
• Excellent organizational, time-management and multitasking skills.
• Advanced proficiency in Microsoft Office (Word, Excel, PowerPoint, Outlook).

Responsibilities

• Provide comprehensive administrative support to senior management and the wider team.
• Manage calendars, coordinate meetings, appointments and travel arrangements where required.
• Prepare, format and maintain reports, presentations, correspondence and confidential documentation.
• Act as a key point of contact for internal and external stakeholders, handling enquiries professionally.
• Coordinate administrative processes, maintain records and ensure accurate document management.
• Monitor deadlines, follow up on outstanding actions and provide general operational support.

Skills

Calendar management

Multitasking

Written & verbal communication

Microsoft Office

Detail orientation

Independent work

Job description

Position: Senior Administrative Assistant
Location: Toronto, ON (Hybrid)
Salary: $30-$35/hr
Posting Type: Open vacancy
Position Type: 6-month contract (potential for extension)

Our downtown client is seeking an experienced and highly organized Senior Administrative Assistant to join their team on an initial 6-month contract.

The ideal candidate will be proactive, detail-oriented and capable of managing competing priorities while supporting senior team members and key stakeholders.

Key Responsibilities

• Provide comprehensive administrative support to senior management and the wider team.
• Manage calendars, coordinate meetings, appointments and travel arrangements where required.
• Prepare, format and maintain reports, presentations, correspondence and confidential documentation.
• Act as a key point of contact for internal and external stakeholders, handling enquiries professionally.
• Coordinate administrative processes, maintain records and ensure accurate document management.
• Monitor deadlines, follow up on outstanding actions and provide general operational support.

About You

• 3–5+ years' experience in an Administrative Assistant, Executive Assistant or similar support role.
• Strong experience supporting senior stakeholders and managing competing priorities.
• Excellent organizational, time-management and multitasking skills.
• Advanced proficiency in Microsoft Office, particularly Word, Excel, PowerPoint and Outlook.
• Exceptional written and verbal communication skills with strong attention to detail.
• A proactive, solutions-focused approach with the ability to work independently and exercise discretion.

This is a great opportunity to join a well-established downtown organisation, work closely with senior stakeholders and further develop your administrative expertise within a professional and collaborative environment.

All applications are reviewed by our recruitment team, and hiring decisions are made by people. We may also use AI-enabled tools to support parts of the application review process.

#tor1