Temporary Office Support jobs in Concord, ON

Part-time Administrative Assistant for a public accounting firm client, Greater Toronto Area.

Marberg Job Number: 2859.
Job Type: Temporary.
Initial Term: ASAP for approximately 6 months, with possibility of extension or conversion to direct-hire, subject to client business requirements.
Existing Vacancy: Yes.
Compensation: $30 per hour to $35.00 per hour, according to experience.
Regular Work Hours: Between 5-15 hours per week, to be worked during regular business hours between 9 am to 5 pm, Monday to Friday. Additional paid hours may be required during the tax season (March-April), including some evenings and weekends as needed.
Work Location: 100% remote-based, with periodically scheduled onsite work at our client's downtown Toronto, Mississauga, or Oakville office locations.
Position Reports To: Principal.

Responsibilities Summary:
Provide support to a public accounting firm. Highly organized, detail-oriented Administrative Assistant / Documents Processor to play a central role in keeping client workflow accurate, compliant, and moving efficiently. This is not a basic administrative role; it is a process ownership position that directly supports client delivery and firm operations.

You will be the operational backbone, ensuring client files are complete, communications are handled professionally, and internal systems remain accurate and up to date. Your work enables the Principal and accounting team to focus on high-value client service.

You will be responsible for the end-to-end processing and integrity of client administrative workflows, including:

• Collating, preparing, and delivering draft and final client packages.
• Maintaining the accuracy and integrity of client records and workflow systems.
• Storing and organizing client documentation securely.
• Following up with clients regarding outstanding items needed to complete files.
• Maintaining administrative tracking systems and monthly statistics.
• Supporting scheduling and coordination of meetings.
• Preparing and editing professional correspondence (letters, memos, mass emails).
• Responding to select client requests and inquiries using firm templates.
• Liaising with the firm’s IT service provider to ensure smooth technical operations.
• Performing additional administrative and process functions as required.

Qualifications:
Education: College or University degree, or equivalent combination of education and work experience.
Preferred Work Experience: At least 5+ years of experience in a professional administrative role.
Preferred Sector Experience: Public Accounting firm experience strongly preferred.

Technical and Language Skills Requirements:

• Experience with DocuSign, CaseWare, and TaxPrep software preferred.
• Advanced MS Office skills, particularly Excel (will be tested).
• Fast and accurate typing and data entry skills, and excellent attention to detail (will be tested).
• Familiarity with online databases and file management programs.
• Sound knowledge and understanding of bookkeeping functions an asset.
• Strong English written and reading comprehension skills, including excellent spelling, grammar, proofreading, and syntax (will be tested).
• Strong English conversational skills and professional telephone manners.

Task -Based Qualifications and Additional Attributes:

• Punctual, responsible, and reliable. Demonstrated record of professional conduct and character.
• Strong sense of urgency and understanding of accounting firm workflow cycles. Strong prioritization and workflow management skills.
• Experience supporting multiple professionals simultaneously.
• Excellent written communication using proper templates and professional tone.
• Ability to exercise sound judgment, initiative, and discretion.
• High ethical standards and confidentiality with sensitive information.
• Focused and able to work effectively with minimal direction and supervision, to prioritize tasks effectively, and to manage volume targets and due dates.
• Superior attention to detail, and organized, methodical approach to completion of tasks.
• Demonstrated ability to work well both independently and collaboratively and liaise effectively with a wide and diverse range of internal and external stakeholders.

Additional Requirements:

• Must have own dedicated ergonomic workspace in a confidential environment, with reliable high-speed internet. Must have ability to work extended periods at a computer and manage multiple tasks remotely.
• Must be legally entitled to work in Canada, providing satisfactory documentation upon request.
• Ability to work both remotely and onsite, abiding by organization health and safety policies.
• Ability to promptly provide minimum of 2, qualified employment references who are available to speak with either Marberg or Marberg's client.
• Ability to declare personal Non-Conflict of Interest in execution of assignment responsibilities.
• Provision of certification of AODA and OHSA online training course completion prior to assignment start.
• Satisfactory Background Checks, Credit Check, Technical Skills Evaluations, Interpersonal Skills Assessment and Employment References.

Application Notes:

We are screening and shortlisting Candidates immediately and qualified applications may be contacted same day as date of application.

We thank all applicants for their interest but wish to advise that only those selected for an interview will be contacted.

Please note that Marberg Staffing updates job posts regularly, and external job boards may not reflect these changes in a timely fashion. Please refer to https://marberg.com/career-portal for the most current information including salary range.

Please note that Marberg Staffing only accepts applications through Indeed.ca, LinkedIn and marberg.com.

Candidates are only contacted via official phone call, email, or LinkedIn message from Marberg Staffing. Please disregard any initial contact through other mediums such as text message.

No AI tools are used to screen, assess or select employment applications. All candidate selection processes are performed by qualified recruiters.

Marberg is committed to supporting workplace diversity and inclusivity, to reflect the demographic profile of all Ontarians. Applications are encouraged from equity seeking groups including people of colour, Indigenous people, individuals with disabilities, and people from the LGBTQ2S community.