Office & Payroll Administrator (Waterloo)

We are looking for an Office & Payroll Administrator to support daily operations in Waterloo, Ontario while helping maintain accurate payroll, accounting, and administrative processes. This position blends front-line office coordination with payroll and financial support, making it ideal for someone who is organized, detail-focused, and comfortable managing a range of responsibilities. The successful candidate will contribute to a well-run workplace by providing dependable administrative service, handling confidential information with care, and supporting leaders and staff across the business. Responsibilities: Oversee day-to-day office operations, including coordinating supplies, service providers, courier activity, and facility-related needs to keep the workplace running smoothly. Maintain shared office spaces such as meeting rooms, kitchen areas, and common rooms so they remain clean, stocked, and ready for use. Administer office security-related tasks and respond to occasional after-hours notifications when required. Support internal meetings, staff lunches, trade show preparation, and client gifting initiatives by organizing logistics and completing related administrative work. Provide direct administrative assistance to senior leadership, including the President and Vice-President, as needed. Review employee time records, apply overtime rules accurately, and prepare bi-weekly payroll submissions for approximately 25 to 35 employees through the appropriate systems and service provider. Assist with employee onboarding activities and provide recruitment support when hiring needs arise. Prepare client invoices from supporting documentation through entry, review, posting, and distribution, while also monitoring accounts receivable activities. Reconcile monthly credit card statements, complete account coding, and perform additional data entry and accounting support tasks as required. Apply on Kit Job: kitjob.ca/job/2p0x3u