Mississauga On Office administrator Jobs – 439 Openings This Week

Office Manager
Confidential —Mississauga, ON
- $55,000–$65,000 a year
- Full-time
- Google Suite
- Inventory management
- Microsoft Office
- Disability insurance
- Dental care
Quick apply
Administrative Assistant (Part-Time)
Dexterra Signature Dining —Mississauga, ON
- $19–$20 an hour
- Part-time
- Microsoft Outlook
- Administrative experience
- High school diploma or GED
Quick apply
Office Administrative Assistant
Onyx-Fire Protection Services —Mississauga, ON
- $40,000–$45,000 a year
- Full-time
- Microsoft Word
- Administrative experience
- High school diploma or GED
- Dental care
- Paid time off
Quick apply
7d
Office Administrator (Manufacturing)
Selekktus Staffing Solutions - Ontario Division Inc —Mississauga, ON
- $55,000–$65,000 a year
- Full-time
- Microsoft Outlook
- Administrative experience
- Human resources
- Dental care
Quick apply
Office Administrator
Federal Screen Products Inc. —Mississauga, ON
- $55,000–$65,000 a year
- Full-time
- Microsoft Office
- Administrative experience
- Front desk
- Dental care
- Paid time off
Quick apply
6d
Administrative Assistant
Nippon Express Canada —Mississauga, ON
- $25–$28 an hour
- Full-time
- Microsoft Powerpoint
- Microsoft Word
- Customer service
- Dental care
- Paid time off
Quick apply
Executive Assistant & Family Office Coordinator
Helia Capital —Toronto, ON
- From $70,000 a year
- Weekends as needed
- Hospitality
- Microsoft Outlook
- Inventory management
- Dental care
- Paid time off
Quick apply
Office Administrator (order processing) *Polish speaking*
Omega Food Importers —Mississauga, ON
- From $19 an hour
- Full-time
- English
- Administrative experience
- Data entry
Quick apply
7d
Payroll and Benefits Administrator
Daybar Industries Ltd —Brampton, ON
- $55,000–$70,000 a year
- Full-time
- Microsoft Excel
- Human resources
- Organizational skills
- Dental care
- Vision care
Quick apply
Payroll & Benefits Administrator
Neilson Financial Services —Toronto, ON
- $65,000 a year
- Hybrid work
- Microsoft Excel
- Customer service
- Microsoft Office
Quick apply
4d
Dental Administrative Assistant
BLOOR DENTAL HEALTH CENTRE —Toronto, ON
- $19.43–$30.11 an hour
- Full-time
- Administrative experience
- In-person
- Communication skills
- Dental care
Quick apply
Office & Corporate Affairs Administrator
YA YA Foods Corp —Toronto, ON
- $50,000 a year
- Full-time
- Microsoft Outlook
- SharePoint
- Front desk
Quick apply
7d
Bilingual Office Administrator (Mandarin and English)
New Shah Impex Inc —Mississauga, ON
- From $21 an hour
- Full-time
- English
- Microsoft Office
- Finance
- Paid time off
Quick apply
6d
Optometric Assistant / Frame Stylist – Optometrist Office (1+ year experience required)
Confidential —Oakville, ON
- $19–$22 an hour
- Part-time
- Sales
- Medical office experience
- Patient care
- Dental care
Quick apply
7d
Administrative Assistant (Booking Coordinator) - Milton
Keolis Canada —Milton, ON
- $21 an hour
- Part-time
- Writing skills
- Research
- Microsoft Office
Quick apply
3d
Bilingual Human Resources Administrator (English & French)
Jonview —Etobicoke, ON
- From $48,000 a year
- Full-time
- Hybrid work
- Microsoft Word
- English
- Continuous improvement
- Disability insurance
- Dental care
Quick apply
PACS Systems Administrator, Medical Imaging - FT (J0826-0653)
North York General Hospital —Toronto, ON
- $49.14–$59.20 an hour
- Weekends as needed
- Microsoft Word
- Computer Science
- Maintenance
Quick apply
12d
Legal Administrative Assistant
WEL Partners —Toronto, ON
- $48,500–$55,000 a year
- Full-time
- Microsoft Word
- Microsoft Outlook
- English
Quick apply
7d
Medical Office Administrator
Bronte Vascular Ultrasound —Oakville, ON
- From $22 an hour
- Part-time
- Inventory management
- Customer service
- Medical office experience
Quick apply
4d
Medical and Administrative Assistant
Bloor Pain Specialists —Toronto, ON
- $20 an hour
- 8 hour shift
- Google Suite
- Inventory management
- Customer service
- Paid time off
Quick apply

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Office Manager

Confidential -
Mississauga, ON

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Job details

Permanent | Full-time
$55,000–$65,000 a year

Qualifications

Desktop support
Google Suite
Contract management
Sourcing
Accounts payable
Supplier management experience
Inventory management
Lead generation
Administrative and business operations experience
Microsoft Office
Administrative experience
Social media platforms
Bachelor's
Human resources
Ticket management systems
Customer service orientation
Organizational skills
Contracts
Content scheduling
Purchasing
HRIS
Budgeting
Office management
Communication skills
Facilities maintenance
Marketing
Property management
Team coordination
Negotiation
Account reconciliation

Full job description

About the Role

We are seeking a proactive, highly organized Office Manager to oversee the day-to-day operations of our office and ensure a smooth, efficient, and welcoming workplace. This role is central to keeping the business running — from administrative operations and vendor relationships to IT coordination, employee support, and company culture. The ideal candidate is a versatile problem-solver who thrives on variety, anticipates needs before they arise, and enjoys being the go-to person for the whole team.

Key Responsibilities

Facilities and Vendors

Primary point of contact for landlord, building management, and property issues.
Own cleaning, security, maintenance, and waste contracts — scope, renewal, and performance.
Maintain office policies and procedures; own health and safety compliance, drills, and required postings.
Resolve facilities faults escalated by Reception; decide what gets fixed, replaced, or lived with.
Manage office layout, seating, moves, and space planning.

Purchasing and Budget

Place all supply, equipment, and furniture orders, working from Reception's reorder list.
Own vendor selection, pricing negotiation, and account setup.
Code and approve office invoices for payment.
Track the office budget and monthly spend against plan.
Reconcile the company card

IT Coordination

Single liaison to the outsourced IT provider; log, chase, and close tickets.
Order, set up, and deploy workstations for new hires; decommission and wipe on exit.
Own the asset inventory — laptops, monitors, phones, licences, and renewal dates.
Manage account and access provisioning and removal with IT.
Triage the easy issues first (password, printer, connectivity) before escalating.

HR Support and Onboarding

Deliver onboarding and orientation with HR; prepare welcome materials and workstations.
Issue building access, keys, and credentials ahead of start dates.
Maintain records and the internal directory.
Schedule interviews and coordinate candidate logistics.
Run the offboarding checklist — access, assets, keys, and final-day logistics.

Internal Events and Culture

Plan and run all-hands meetings, offsites, the holiday party, and milestone celebrations.
Own event budgets, vendor contracts, catering, and run-of-show.
Assist with recognition programs — service awards, peer recognition, birthdays.

Marketing and External Events

Trade shows: book booth space, manage booth assets and shipping, schedule and brief booth staff, own the show budget, run lead capture, and hand leads to sales.
Partner events: venue, invitations, RSVP tracking, run-of-show, and follow-up.
Customer and community events: open houses, lunch-and-learns, sponsorships, and association memberships.
Social media: content calendar, drafting and scheduling posts, responding to comments and messages, and monthly performance reporting.
Collateral and brand: print inventory, branded swag and apparel, ordering, and version control so outdated material stops circulating.
Support basic website updates.

Travel

Book flights, hotels, and ground transport for staff and executives.
Hold bookings to the travel policy and track travel spend against budget.
Act as the contact for changes, cancellations, and travel emergencies, including after hours.

Qualifications

· Bachelor's degree preferred, or equivalent professional experience.

· 3+ years of experience in office management, administration, or a related operations role.

· Strong organizational skills with the ability to manage multiple priorities and deadlines.

· Excellent written and verbal communication skills.

· Comfortable coordinating basic IT/technology needs and working with external vendors.

· Proficiency in Microsoft Office and/or Google Workspace; familiarity with HRIS or ticketing systems a plus.

· Discretion and professionalism when handling confidential or sensitive information.

· A positive, service-oriented attitude and a genuine interest in supporting a team.

Pay: $55,000.00-$65,000.00 per year

Benefits:

Casual dress
Company events
Dental care
Disability insurance
Employee assistance program
Extended health care
Life insurance
On-site parking
Paid time off
Vision care

Work Location: In person

Quick apply

Refine Your Search

office administrator jobs in mississauga on

Office Manager

Administrative Assistant (Part-Time)

Office Administrative Assistant

Office Administrator (Manufacturing)

Office Administrator

Administrative Assistant

Executive Assistant & Family Office Coordinator

Office Administrator (order processing) Polish speaking

Payroll and Benefits Administrator

Payroll & Benefits Administrator

Dental Administrative Assistant

Office & Corporate Affairs Administrator

Bilingual Office Administrator (Mandarin and English)

Optometric Assistant / Frame Stylist – Optometrist Office (1+ year experience required)

Administrative Assistant (Booking Coordinator) - Milton

Bilingual Human Resources Administrator (English & French)

PACS Systems Administrator, Medical Imaging - FT (J0826-0653)

Legal Administrative Assistant

Medical Office Administrator

Medical and Administrative Assistant

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