Senior Administrative Assistant

Who we are
We are a large and growing professional services firm that still feels like a community. We employ about 3000 people across Canada, and we truly care about our colleagues, our clients and the communities where we work and live. That’s what’s most important to us. We’re building a thriving organization that’s purpose driven and still want to remember what your favourite milkshake flavour is.

Senior Administrative Assistant Responsibilities

Work directly with Practitioners to help manage their dynamic growing practices.

Schedule, liaise, and communicate with others, including clients, to proactively prepare information in advance of meetings and deadlines.

Receive, distribute, redirect, and respond to mail, email, telephone calls, reports, and other material. Ensure appropriate follow up action is taken where required in order to meet deadlines.

Prepare letters and reports using Firm templates in compliance with Firm standards, including proofreading, reviewing, and verifying quality and content before finalizing any client deliverables.

Assemble and file year-end and tax packages for clients, including facilitating electronic or in-person signatures and utilizing a variety of filing methods, including e-filing, uploading through portals, and courier.

Enter and maintain client data using Microsoft Dynamics 365 software, create jobs in D365, roll forward jobs/files, and archive as appropriate for the engagement.

Manage the billing process for your Practitioners, including drafting and sending invoices to clients.

Prepare and track expense claim submissions.

Occasional reception coverage.

Participate in the development of internal systems and processes and in projects with others within the NSBU.

Coordinate internal and external meetings, room bookings, video conferences, and in-office events.

Work on various data quality projects as need dictates.

Additional responsibilities, as assigned.

Qualifications & Skills

Successful completion of an Office Administration program or 2-4 years of experience in an administrative role (experience in a professional services firm is preferred). A minimum of a high school diploma is required.

Proficiency in Word, Excel, Outlook, and PowerPoint with an aptitude to learn standard Firm software (e.g., Tax Prep, Case Ware, Visio) and other relevant applications and technical/office equipment.

Excellent organizational and multitasking abilities, allowing effective management of multiple responsibilities and maintaining office efficiency.

Strong communication and interpersonal skills are essential, as the role involves frequent interaction with colleagues and clients.

A keen attention to detail and a proactive approach to ensure that all aspects of office support are handled promptly and to a high standard, and the ability to anticipate the needs of both colleagues and clients.

Knowledge of a CRM platform (e.g., Microsoft Dynamics D365) is desirable.

Capable of meeting tight deadlines on multiple projects.

Ability to maintain confidentiality when working with sensitive matters.

Available to work some overtime throughout the year.

Must be legally eligible to register for an online RepID account with Canada Revenue Agency.

About the Company
At Doane Grant Thornton we’re focused on making a difference in the lives of our clients, our colleagues and our communities. That’s our purpose. Or, as we like to say, living our purple.

Want to learn more about who we are and how we live our purple every day? Read our colleagues’ stories at

Location & Employment
This role is required to be onsite, in-office five days each week.

Are you ready to Discover Your Purple?
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