Last updated: 2025-11-13

19 Administrative Assistant jobs in Mississauga.

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Performance Auto Group

Performance Auto Group is a leading automotive group, whose purpose is to be the preferred automotive group by fostering fair and respectful relationships that…

Casual Floater Front Desk Administrator

Brampton

  • Skills: front desk administration, customer service, telephony, GTA, scheduling, motor vehicle licensing, administrative tasks, communication, Google Drive, team oriented
  • Level: entry
  • Type: temporary

Mattamy Homes

Mattamy Homes is the largest family-owned homebuilder in North America, with 40-plus years of history across Canada and the United States. Every year, Mattamy …

New Home Sales Administrator

Kitchener

  • Skills: customer service, administrative assistance, documentation, communication skills, organization, time management, MS Office, professionalism, teamwork, GTA Sales Offices
  • Level: entry
  • Type: full_time

Clutch

Clutch is Canada’s largest online used car retailer, delivering a seamless, hassle-free car buying and selling experience to drivers everywhere.

Front Desk Receptionist

Mississauga

  • Skills: Front Desk, Customer Service, Receptionist, Scheduling, Administrative Support, Interpersonal Skills, Microsoft Office, Organization, Multitasking, Background Check
  • Level: entry
  • Type: full_time

First Choice Hair

First Choice salons are independently owned and operated by third party franchisees.

Stylist

Brampton

  • Skills: guest service, consultations, haircuts, coloring, waxing, fragrances, chemicals, flexible schedule, administrative tasks, basic math
  • Level: entry
  • Type: full_time

Aecon Group Inc.

Aecon is a Canadian leader in infrastructure development, focusing on building impactful infrastructure projects in transportation and energy, and is committed…

Project Payroll Administrator

Cambridge

  • Skills: payroll processing, data entry, administration, auditing procedures, employee onboarding, Microsoft Office, SAP, trade unions, communication skills, organizational skills
  • Level: mid
  • Type: full_time

clutch

Production Administrative Assistant

Etobicoke

  • Skills: automotive, production assistant, data entry, documentation, customer service, administrative duties, communication, vehicle safety, inventory monitoring, Microsoft Office
  • Level: entry
  • Type: full_time

LCI

We are one of the largest and fastest growing private youth sports operators in the GTA. We provide fun, engaging experiences, creating lasting memories for th…

Finance Administrator / Bookkeeper

Etobicoke

  • Skills: office management, bookkeeping, accounts payable, payroll, invoicing, accounting software, time-management, multitasking, compliance, vendor relationships
  • Level: mid
  • Type: full_time

Maple Ridge Community Management

At Maple Ridge Community Management, an Associa® Company, serving others is our calling. We are passionate about our services, and we live for our customers. W…

Administrative Assistant/Condominium Property Administrator

Mississauga

  • Skills: Condominium Management Limited License, communication skills, relationship building, organizational skills, time management, project management, policy implementation, administrative duties, customer service, office management
  • Level: entry
  • Type: full_time

Sodexo

Grow your career with a company that shares your passion! Our Corporate Services Division has an exciting new opportunity to join the Sodexo team as our next O…

Office and Mail Room Services Coordinator

Mississauga

  • Skills: office services, customer service, vendor management, safety compliance, event management, mail processing, budget management, communication skills, leadership, MS Office
  • Level: mid
  • Type: full_time

Parsons Corporation

For more than 80 years, our experts have designed and delivered the critical infrastructure that connects and protects communities around the world.

Customer Service Agent (Payment Support)

Hamilton

  • Skills: Customer Service, Payment Support, Billing, Reporting, Microsoft Office, Communication, Organization, Multitasking, Inspection Fee, Critical Infrastructure
  • Level: entry
  • Type: contract

Fengate

Fengate is an equal opportunity employer, striving to attract and retain a diverse workforce committed to promoting diversity, equity, inclusion, and belonging…

Property Administrator

Oakville

  • Skills: property administration, communication skills, time management, Yardi, MS Office, relationship management, tenant relations, invoice processing, operations support, purchase orders
  • Level: mid
  • Type: full_time

AECOM

At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, ou…

Office Manager

Mississauga

  • Skills: Office Management, Administrative Support, Logistics, Coordination, Microsoft Office, Project Management, Team Collaboration, Operational Efficiency, Onboarding, Communication
  • Level: mid
  • Type: full_time

William Osler Health System

One of Canada's Best Diversity Employers and Greater Toronto's Top Employers for many consecutive years, William Osler Health System (Osler) provides a safe an…

HR Assistant

Brampton

  • Skills: Human Resources, HR Assistant, communication skills, customer service, administrative support, Microsoft Office, employee records, payroll, organizational skills, detail-oriented
  • Level: mid
  • Type: full_time

Halton Healthcare

Halton Healthcare's vision of Exemplary patient experiences, always, goes beyond just the patient experience; it has shaped our entire culture and remains at t…

Administrative Coordinator

Oakville

  • Skills: administrative support, invoicing, data management, scheduling, financial tracking, healthcare programs, community integration, confidentiality, contract management, customer service
  • Level: mid
  • Type: temporary

William Osler Health System

One of Canada's Best Diversity Employers and Greater Toronto's Top Employers for many consecutive years, William Osler Health System (Osler) provides a safe an…

Administrative Assistant - Molecular Biology

Brampton

  • Skills: administration, calendars, meeting agendas, invoices, data management, financial issues, confidential information, grant proposals, customer service, research projects
  • Level: entry
  • Type: full_time

Ontario Pork

Ontario Pork is an agricultural organization that plays a key role in the pork industry supply chain.

Customer Service Coordinator

Guelph

  • Skills: customer communication, logistics, data management, sales support, agriculture, problem-solving, Microsoft Office, schedule management, interpersonal skills, transportation
  • Level: entry
  • Type: full_time

Canada Life Assurance Company

Canada Life serves the financial security needs of more than 13 million people across Canada, with additional operations in Europe and the United States. It is…

Office Administrator

Kitchener

  • Skills: Office administration, Mailroom operations, Customer service, Document scanning, Organization skills, Data management, French language, Time management, Insurance industry, Documentation processing
  • Level: entry
  • Type: full_time

Flynn Group of Companies

Flynn Group of Companies is the leading trade contractor in North America that works on virtually every aspect of a building’s outer layer, including Roofing, …

National Service Operations Coordinator

Mississauga

  • Skills: customer reports, invoicing, quotes, customer database, field service, administrative duties, communication skills, multi-task, Microsoft Office, roofing industry
  • Level: entry
  • Type: full_time

Halton Healthcare

Halton Healthcare’s vision of Exemplary patient experiences, always, goes beyond just the patient experience; it has shaped our entire culture and remains at t…

Unit Clerk

Oakville

  • Skills: healthcare, clerical, patient care, administration, data entry, Microsoft Office, communication skills, organizational skills, client interaction, teamwork
  • Level: entry
  • Type: part_time