Office Administrator Jobs in Waterloo, ON

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Office Manager

Mississauga, ON
onsite
Temporary
30.4 - 35.2 CAD / Hourly
We are looking for an experienced Office Manager to provide hands-on administrative and operational support for a busy team in Mississauga, Ontario. This Long-term Contract opportunity is ideal for someone who is highly organized, self-directed, and comfortable managing both executive support duties and day-to-day office coordination in a fast-paced environment. The successful candidate will bring strong judgement, attention to detail, and the ability to keep priorities moving smoothly while handling confidential information with professionalism. Responsibilities: • Provide senior-level administrative support by preparing documents, presentations, and correspondence for leadership and internal teams. • Coordinate meetings, calendars, and office events while ensuring conference rooms and shared spaces are scheduled effectively. • Manage expense submissions and reconciliation activities with accuracy, including follow-up on invoices and related records. • Oversee daily office operations such as incoming mail, package handling, storage organization, and vendor coordination. • Maintain a proactive working relationship with external service providers, including office facilities and storage partners, to support smooth operations. • Partner with internal teams such as IT to address office needs, resolve issues promptly, and improve administrative processes. • Create and maintain clear process documentation to support consistency, efficiency, and knowledge sharing across office functions. • Communicate regularly with senior leadership by providing timely updates, coordinating requests, and supporting shifting business priorities.
2026-10-28T00:00:00Z

Executive Assistant

Brampton, ON
onsite
Permanent
75000 - 80000 CAD / Yearly
Key Responsibilities: Executive & Administrative Support • Provide direct administrative support to the President. • Manage calendars, meetings, appointments, and daily scheduling. • Prepare, edit, and organize emails, letters, reports, presentations, and other business documents. • Assist with follow-ups on behalf of the President with internal teams, clients, vendors, subcontractors, and business partners. • Screen and prioritize calls, emails, and requests. • Coordinate meetings, including booking rooms, preparing agendas, taking notes, and tracking action items. • Maintain confidential company and executive information with professionalism and discretion. • Assist with travel arrangements, reservations, event planning, and other executive needs. • Organize and maintain digital and physical files. Business & Office Coordination: • Support the President with daily business operations and administrative priorities. • Track outstanding items, deadlines, approvals, and follow-ups. • Assist with coordinating documents for projects, vendors, clients, and internal departments. • Communicate with staff, management, and external contacts in a professional manner. • Help prepare information for meetings, proposals, company updates, and presentations. • Support general office administration as needed. Social Media & Marketing Support • Assist with creating and posting basic social media content for platforms such as LinkedIn. • Help collect project photos, company updates, employee highlights, and event content. • Work with internal teams to gather information for posts and marketing materials. • Draft captions and simple company announcements. • Help maintain a professional and consistent company brand online. • Support website or marketing updates when required. • Coordinate with external marketing vendors, photographers, or designers when needed. Qualifications: • Minimum 3–5 years of experience as an Executive Assistant, Administrative Assistant, Office Coordinator, or similar role. • Previous experience supporting a President, business owner, senior executive, or leadership team is strongly preferred. • Post-secondary education in Business Administration, Office Administration, Communications, Marketing, or a related field is preferred. • Experience working in a small-to-medium-sized business is considered an asset. • Experience in the construction, civil, engineering, trades, or related industry is an asset but not required. • Strong experience managing calendars, scheduling meetings, preparing documents, and handling executive-level follow-ups. • Excellent written and verbal communication skills. • Strong organizational and time-management skills with the ability to manage multiple priorities. • High level of professionalism, discretion, and confidentiality. • Strong attention to detail and ability to work independently with minimal supervision. • Proficient with Microsoft Office, including Outlook, Word, Excel, PowerPoint, and Teams. • Basic knowledge or hands-on experience with social media platforms, including LinkedIn, Instagram, and Facebook. • Experience creating simple social media posts, captions, company announcements, or marketing content is an asset. • Valid driver’s licence and access to a vehicle is an asset, depending on business needs.
2026-10-30T00:00:00Z

Executive Assistant

Guelph, ON
onsite
Permanent
80000 - 95000 CAD / Yearly
We are seeking an experienced Executive Assistant to provide high-level administrative and governance support to senior leadership and a Board of Directors. This role is ideal for a polished, highly organized professional who is comfortable working with executives, board members, and confidential information in a fast-paced environment. This is a hybrid opportunity located in Guelph.What you’ll do:<ul><li>Provide senior-level administrative support to executive leadership and the Board of Directors</li><li>Coordinate Board and committee meetings, including scheduling, logistics, agendas, meeting materials and follow-up</li><li>Prepare and distribute Board packages, reports, presentations and other governance materials</li><li>Record and prepare Board and committee meeting minutes, tracking decisions and action items</li><li>Maintain Board calendars, records, policies and other governance documentation</li><li>Coordinate complex executive calendars, meetings and appointments</li><li>Draft and proofread correspondence, presentations and executive-level communications</li><li>Serve as a key point of contact between executives, Board members and internal/external stakeholders</li><li>Handle sensitive and confidential information with a high level of discretion</li><li>Support special projects and other executive-level initiatives as required</li></ul>
2026-10-22T00:00:00Z

Executive Assistant

London, ON
onsite
Permanent
55000 - 64000 CAD / Yearly
London, Ontario | $55,000-$64,000 + Outstanding Pension + 3 Weeks' VacationMake a difference every day.Are you an organized, proactive professional who loves keeping people and priorities on track? Do you want your work to have a meaningful impact on the lives of others?We , a respected not-for-profit organization in London, Ontario, is seeking an Executive Assistant to provide high-level support to senior leadership. This is an opportunity to join a purpose-driven organization where your contributions will directly support a mission that makes a real difference in the community. What You'll Do<ul><li>Provide confidential administrative support to senior leadership</li><li>Manage complex calendars, meetings, and scheduling priorities</li><li>Prepare correspondence, reports, presentations, and meeting materials</li><li>Coordinate board and committee meetings, including agendas and minutes</li><li>Support special projects and organizational initiatives</li><li>Organize travel arrangements, events, and logistics as required</li><li>Assist with light reception and office coordination duties</li><li>Maintain accurate records and documentation while handling sensitive information with discretion</li></ul>
2026-10-27T00:00:00Z

Executive Assistant

London, ON
onsite
Permanent
55000 - 0 CAD / Yearly
Behind every effective Executive Director and high-performing Board is an exceptional Executive Assistant. We are seeking a dynamic and detail-oriented professional who enjoys being at the heart of a mission-driven organization, providing executive, administrative, and governance support that helps advance our impact in the community.The OpportunityThis is a pivotal role within the organization, responsible for ensuring the smooth operation of executive and governance functions. The successful candidate will be a trusted partner to senior leadership, providing executive-level administrative support while coordinating Board activities along with day to day office related responsiblities.Key ResponsibilitiesExecutive Support<ul><li>Manage the Executive Director's complex calendar, scheduling, and priorities</li><li>Coordinate meetings, prepare agendas, reports, presentations, and correspondence</li><li>Screen and prioritize communications and requests</li><li>Maintain confidential records and sensitive information with discretion</li><li>Support strategic initiatives and special projects</li><li>Prepare and distribute Board packages and supporting materials</li><li>Record and maintain accurate meeting minutes</li><li>Prepare reports, presentations, and organizational documents</li></ul>
2026-10-21T00:00:00Z

Executive Assistant

Kitchener, ON
onsite
Permanent
80000 - 90000 CAD / Yearly
A great Executive Assistant doesn't just manage calendars; they create capacity for leaders to focus on what matters most. We're looking for a polished, proactive Executive Assistant who thrives on staying one step ahead. In this role, you'll serve as a trusted partner to a senior executive, expertly managing priorities, communications, schedules, and key initiatives while bringing organization and efficiency to a fast-moving environment. What You'll DoAs the Executive Assistant, you will be the primary point of coordination for the executive's schedule, communications, and administrative priorities.Key Responsibilities:<ul><li>Manage complex calendars, scheduling meetings, appointments, and travel arrangements</li><li>Coordinate and prioritize a high volume of emails and correspondence</li><li>Prepare, review, and format presentations, reports, and executive communications</li><li>Process and reconcile executive expense reports accurately and on time</li><li>Coordinate internal and external meetings, including agendas, materials, and follow-up actions</li><li>Draft professional correspondence, meeting summaries, and other business documents</li><li>Maintain confidential information and exercise sound judgment in sensitive situations</li><li>Support special projects and strategic initiatives as assigned</li><li>Liaise with senior leaders, clients, and stakeholders on behalf of the executive</li></ul>
2026-10-27T00:00:00Z

Bookkeeper

Hamilton, ON
onsite
Permanent
50000 - 60000 CAD / Yearly
We are looking for a meticulous Bookkeeper to join a respected construction company in Hamilton, Ontario. In this role, you will support day-to-day accounting operations with a strong focus on payables, payroll accuracy, and timely financial recordkeeping. This opportunity is ideal for someone who thrives in a deadline-driven environment and enjoys contributing to a collaborative finance team. Responsibilities:• Review incoming invoices, match them to supporting documents, and ensure amounts and approvals are accurate before processing• Administer weekly payroll for employees and applicable contractors while maintaining precise records and meeting scheduled deadlines• Calculate and submit statutory payroll deductions and assist with year-end payroll reporting, including preparation of required tax slips• Reconcile accounts payable records, investigate discrepancies, and follow up with suppliers to resolve outstanding issues• Maintain organized vendor information and coordinate payment runs to support prompt and accurate disbursements• Contribute to month-end and year-end accounting activities by preparing reconciliations and supporting financial reporting• Provide additional bookkeeping and administrative assistance as needed to support the accounting function
2026-10-21T00:00:00Z

7 results for Office Administrator in Waterloo, ON