administration assistant jobs in Ontario

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10,000 administration assistant job listings in Canada. Find daily updated positions from leading job boards.


  • Ontario, Canada CFMWS Full-time

    WHO WE AREThe Canadian Forces Morale and Welfare Services’ (CFMWS) supports the Canadian Armed Forces members and their families wherever they are in the world through the provision of fitness, recreation and leisure activities, family and charitable support, retail as well as personal financial services. We offer our employees the opportunity to work with...


  • Northeastern Ontario, ON, Canada Wiikwemkoong Full-time $59,000 - $72,000 Contract

    Nakiiwin Azheyaaksin Employment Opportunity Administrative AssistantWiikwemkoong Child and Family Services is seeking qualified individuals to fill the position of Administrative Assistant. Wiikwemkoong Unceded Territory (WUT) Child and Family Services oversees and advocates for child and family matters by following the principals and ethics of...


  • Southwestern Ontario, ON, Canada CGC Canaccord Genuity Corp. Full-time $50,000 - $70,000 Contract

    Who we are:Canaccord Genuity (CG) is a leading independent, full-service financial services firm with a strong presence across wealth management and capital markets. We are built on long-term client relationships, entrepreneurial thinking, and a commitment to delivering tailored solutions for individual, institutional, and corporate clients. With a...


  • Southwestern Ontario, ON, Canada Waterloo International Full-time $62,000 - $77,000 Contract

    ## Administrative Assistant to the ChairApply: Waterloo, Ontario, Canada: Full time: Posted Today: 2026-02904At the University of Waterloo, we create and promote a culture where everyone can reach their full potential. As an employee, you get support & opportunities that empower you to advance your career. Explore how we can bring big ideas to life,...


  • Richmond Hill, Ontario, Canada M. Taylor Services Inc. Full-time

    Job Description Job Description Administrative Assistant/Bookkeeper M. Taylor Services Inc., Richmond Hill Some admin jobs make you feel like a small fish in a big pond. If you're looking to make a splash with a growing company that will notice all your hard work, we've got an opportunity for you. Margaret Taylor Services Inc. provides a full range of...


  • Ottawa, Ontario, Canada Red Flame Industries Inc Full-time

    The Administrative Assistant will be the first point of contact for all staff and visitors at the RFI site as well as a general assistant for all departments of Red Flame.POSITION REQUIREMENTSHigh school diploma required or at the discretion of management1-3 years of experience in an office environment preferably in the oil and gas IndustryHighly proficient...


  • Angling Lake, Ontario, Canada Federated Co-operatives Limited Full-time

    Federated Co-operatives Limited (FCL) is hiring an Administrative Assistant (Propane Clerk) on a temporary full-time basis for up to 6 months. This position requires on-site work at our Propane Branch and is based in Dryden, ON. Do you excel in customer service and have an eye for detail? This position will offer the opportunity to work closely with our...


  • St. Catharines, Ontario, Canada R.W. Hamilton Ltd. Full-time

    Job Description Job Description R.W. Hamilton Ltd, an industrial distributor company, is looking for an ADMINISTRATIVE ASSISTANT. We currently have an opening for a FULL TIME 8am-5pm position Monday to Friday. Responsibilities:Answering incoming callsTyping memos, documentsInvoicing and preparation of month-end reportsFilingAssist the accounts receivable...


  • Toronto, Ontario, Canada Isaac Operations Ltd. Full-time

    Who we are.While technically we're an operational consultancy, we don't like to call ourselves consultants. We're a collection of engineers, innovators and creators who work with companies across industries to simplify the complex, realize untapped potential, and uncover opportunities. We know that our people are our superpower and loving your Monday to...


  • Brantford, Ontario, Canada OFNTSC Full-time

    Job Description Job DescriptionAdministrative Assistant Location: Brantford, Ontario The Ontario First Nations Technical Services Corporation (OFNTSC) is a nonprofit organization that provides technical advisory services, training, and capacity development to First Nations communities in Ontario. By offering a wide range of specialized services and...


  • Richmond Hill, Ontario, Canada Fitzii Organic Full-time

    Job Description Job Description SUMMARY: We are seeking an energetic, intelligent candidate to join our retail team as a sales coordinator Duties & Responsibilities:Responsible for completing and maintaining sales reports and sales information requests for customer team for weekly, monthly, and quarterly tracking requirementsResponsible for maintaining and...


  • Toronto, Ontario, Canada Artech LLC Full-time

    Job Description Job DescriptionTitle: Administrative Assistant Location: FCP Toronto – 100 King St West, Toronto (ON) M5X 1H3 Hybrid work setup: Mon-Thur Office / Fri - WFH. Salary Range: Open Market Rates Duration: 6 Months Introduction Join our dynamic team within the Investment & Corporate Banking line of business as we seek a proactive and skilled...


  • Brampton, Ontario, Canada Back in Motion Full-time

    Job Description Job DescriptionPOSITION TITLE: Administrative Assistant (Job 2026-ADM-ON-002) REPORTS TO: Clinic Operations Manager LOCATION: Brampton, Ontario STATUS: Casual with an opportunity to transition to full-time HOURS OF WORK: M T W F, 11:00 AM–7:00 PM Thursdays, 12pm - 8pm EFECTIVE DATE: ASAP SUMMARY Under the direction of the Clinic Operations...


  • Richmond Hill, Ontario, Canada The Avenue Realty Team Full-time

    Job Description Job DescriptionThe Avenue Realty Team is seeking a proactive and highly organized Junior Administrative Assistant to support our leadership team and ensure smooth daily operations. In this dynamic role, you will serve as the right hand to our executives—managing schedules, overseeing projects, and handling key administrative...


  • Aurora, Ontario, Canada Alumax Panel Inc. Full-time

    Job Description Job DescriptionAbout the Position:Alumax Panel Inc. is seeking a reliable, organized, and detail-oriented Administrative Assistant to support the day-to-day administrative operations of our company. The successful candidate will provide administrative support to management and staff, coordinate office procedures, maintain records, and assist...


  • Mississauga, Ontario, Canada Blue Bear Solutions Inc Full-time

    Job Description Job DescriptionAdministrator required for temporary position. 3-6 months. Your new company This not-for-profit organisation provides support to people from all backgrounds and prides themselves on encouraging the positive development of communities and their people. Your new role As the Administrator the main aspect of your role will be...


  • Mississauga, Ontario, Canada CMC Development & Construction Full-time

    About CMC Development & ConstructionCMC Development & Construction operates as a construction management firm across the diverse construction industry, combining innovation, expertise, and dedication under our motto of Developing Tomorrow to deliver exceptional outcomes. We build exceptional projects and meaningful careers through disciplined execution, a...


  • Mississauga, Ontario, Canada 401 Heavy Duty Truck Parts Inc. Full-time

    401 Heavy Duty Truck Parts Inc.Job detailsLocation Mississauga , ON L4W 1C4Salary 37.00 hourly / 35 to 40 hours per weekTerms of employment Permanent employment Full timeSecondary (high) school graduation certificateExperience7 months to less than 1 yearWork must be completed at the physical location. There is no option to work remotely.TasksOpen and...


  • Toronto, Ontario, Canada CMC Development & Construction Full-time

    About CMC Development & ConstructionCMC Development & Construction operates as a construction management firm across the diverse construction industry, combining innovation, expertise, and dedication under our motto of Developing Tomorrow to deliver exceptional outcomes. We build exceptional projects and meaningful careers through disciplined execution, a...


  • Toronto, Ontario, Canada Insight Global Full-time

    Insight Global is seeking an Administrative Assistant to join one of Canada's top banking institutions for a 6-month contract. The successful candidate will reconcile documents coming into the office and file them in the appropriate areas. The ideal candidate will be tech-savvy, have a keen eye for detail, and be able to communicate well with their...