Senior Office Administrator
- Mississauga, ON
- On-site
- Posted Sep 23, 2026
- 1 position
$50,000–$60,000 / year
Opens an external site
- Employment type
- Full-time
- Experience level
- Mid-level · 2+ years
- Minimum education
- Bachelor’s degree
- Posting language
- English
- Working hours
- 40 hours per week
Job summary
The Senior Office Administrator manages daily front desk operations, visitor coordination, and office environment maintenance. They also provide administrative support to leadership, assist with onboarding logistics, and oversee office security and supply management.
Job details
The Senior Office Administrator manages daily front desk operations, visitor coordination, and office environment maintenance. They also provide administrative support to leadership, assist with onboarding logistics, and oversee office security and supply management. Candidates must have post-secondary education in Business Administration and 3 to 5 years of relevant office administration experience. Proficiency in Microsoft Office and experience with expense management systems like SAP Concur are required.
What you’ll do
The Senior Office Administrator manages daily front desk operations, visitor coordination, and office environment maintenance. They also provide administrative support to leadership, assist with onboarding logistics, and oversee office security and supply management.
Requirements
Candidates must have post-secondary education in Business Administration and 3 to 5 years of relevant office administration experience. Proficiency in Microsoft Office and experience with expense management systems like SAP Concur are required.
Benefits
- Complimentary shuttles
- Subsidized transit options
- Volunteering day off
- On-site training
- Workshops
- Personal development
- Tuition reimbursement
- Health spending account
- Employee-led clubs
Listed skills
- Time management · Preferred
- Customer service · Preferred
- Attention to detail · Preferred
- Office Administration · Preferred
- Microsoft Office · Preferred
- Communication Skills · Preferred
Other relevant skills
Identified from the job description. Confirm important requirements above.
- Office administration
- Expense management
- SAP Concur
- Organizational skills
- Time management
- Communication skills
- Microsoft Office
- Attention to detail
- Visitor management
- Meeting logistics
- Petty cash reconciliation
- Access control
- Digital signage
- Customer service
- Facility coordination
Job areas
- Administrative
- Management & Leadership
- Manufacturing
- Healthcare