Part Time Computer Jobs in Mississauga, ON (NOW HIRING)

Are you looking for a part-time opportunity where you can utilize your accounting experience, organizational skills, and attention to detail while supporting a collaborative team environment?
United Wire & Cable, a GCG company, is currently seeking an Accounting Coordinator to support daily accounting operations and office administration activities at our Richmond Hill, Ontario location.  You will help process invoices and payments, maintain accurate financial records, support GST/HST preparation, validate financial documentation, and keep essential office processes moving.

The role is expected to work approximately 20 hours per week, with the possibility of additional hours based on business needs. The anticipated schedule is Tuesday, Thursday, and Friday during normal business hours of 9:00 a.m. to 5:00 p.m. This position is fully onsite at United Wire & Cable’s Richmond Hill location.

Training will be provided on company-specific systems and processes, but previous experience with accounts payable, accounts receivable, office administration, or related financial work would be valuable.

This is an excellent opportunity for someone who enjoys a variety of responsibilities, values a part-time schedule, and is looking to contribute to a growing organization.
Work Arrangement
Location: 1 West Pearce St, Richmond Hill, ON L4B 3K3, Canada 
Schedule: Onsite Tuesday, Thursday, and Friday during standard business hours
What You'll Do

• Review invoices for accuracy and supporting documentation, then forward approved invoices to GCG’s accounts payable team.

• Process office-supply and other indirect-spend invoices.

• Prepare customer invoices and submit them through required portals.

• Record customer payments and daily receipts in QuickBooks.

• Reconcile invoices, payments, credit card activity, and account records, resolving or escalating discrepancies as needed.

• Prepare bank deposits and maintain supporting documentation.

• Assist with journal entries and the preparation of GST/HST filing information.

• Review and maintain tax certificates, insurance certificates, customer accounts, and vendor records.

• Respond to customer questions related to invoices, payments, and account discrepancies.

• Support credits, returns, invoice corrections, and routine financial documentation.

• Maintain accurate, organized, and confidential accounting records.

• Monitor shared accounting and administrative inboxes and route requests appropriately.

• Support general office administration, including ordering supplies and coordinating routine office needs.

• Follow established accounting procedures, internal controls, and applicable ISO policies.

• Perform other accounting and administrative duties as assigned.

What You'll Bring

• A high school diploma or equivalent.
• Approximately one to two years of related experience in accounting support, accounts payable, accounts receivable, bookkeeping, office administration, or a similar environment.
• Basic understanding of accounting principles and common financial documents.
• Experience entering, reviewing, or maintaining financial and administrative information with a high level of accuracy.
• Working knowledge of Microsoft Office, including Excel, Word, and Outlook.
• Ability to learn QuickBooks and company-specific accounting processes.
• Strong attention to detail and the ability to identify inconsistencies or missing information.
• Strong organizational and time-management skills, with the ability to prioritize multiple responsibilities.
• Clear verbal and written communication skills.
• Ability to handle confidential financial and business information responsibly.
• Ability to work independently, take initiative, and ask appropriate questions when clarification is needed.
• Ability to work effectively with local colleagues and centralized accounting teams.
• Comfort working in a fast-paced environment where priorities may change.
• Availability to work onsite approximately 20 hours per week, primarily Tuesday, Thursday, and Friday during normal business hours.

• Experience in accounts receivable, customer payment processing, collections support, bookkeeping, or financial administration.
• Experience using QuickBooks.
• Experience using another ERP or financial system, such as Oracle, SAP, or Microsoft Dynamics.
• Experience preparing account reconciliations, journal entries, bank deposits, or GST/HST supporting documentation.
• Experience reviewing invoices, tax documentation, insurance certificates, or vendor records.
• A college diploma or associate-level credential in accounting, bookkeeping, business administration, finance, or a related field.
• Experience working in a distribution, manufacturing, industrial, or data-driven business environment.
• Previous experience in a position combining accounting support with office administration.

What We Offer

• Competitive hourly compensation ranging from $26.00 CAD to $30.00 CAD  dependent on relevant accounting experience
• A part-time schedule of approximately 20 hours per week.
• A consistent anticipated schedule, primarily working Tuesday, Thursday, and Friday.
• Training on United Wire & Cable’s accounting processes, systems, and administrative procedures.
• The opportunity to develop practical experience across accounts payable, accounts receivable, reconciliations, financial documentation, and office administration.
• A collaborative working environment with support from local colleagues and GCG’s broader accounting organization
• An employee-centric company that values and truly appreciates our most important asset: You!

Our Use of AI in Recruiting

At GCG, we use AI technology to assist with our interviews by automating note-taking, allowing our hiring teams to focus fully on the conversation. This technology supports efficiency and accuracy in capturing candidate insights during interviews but is not used to evaluate resumes. All resume reviews and candidate assessments are conducted directly by our corporate recruiting team and hiring managers to ensure a thoughtful, human-centered approach.

About United Wire & Cable

United Wire & Cable (UWC), a GCG company, is a Toronto-based supplier of electrical wire and cable solutions supporting customers across Canada and global markets. The company provides innovative cable products engineered for demanding environments, including utilities, mining operations, industrial facilities, and large-scale infrastructure projects. UWC partners with distributors, contractors, governments, and industrial customers to deliver reliable solutions that meet strict performance and safety requirements. Our technical sales team works closely with customers to ensure the right products are selected for each application.

About GCG

At GCG, our mission is to power, connect, and automate our world. With the responsive DNA of a startup and the size of a global leader, we offer top brands and extensive value-added services that make us an invaluable partner to our customers in multiple industry verticals across the globe. We are committed to meeting the needs of our customers, while focusing attention on our responsibility to the environment, our associates and the communities we serve.

Equal Employment Opportunity, Diversity, and Accessibility Statement

GCG is committed to fostering an inclusive, equitable, and accessible workplace for all employees and applicants.

We believe that diversity of backgrounds, experiences, and perspectives drives innovation and strengthens our organization.

GCG provides equal employment opportunities to all qualified individuals regardless of race, color, religion, sex, gender identity or expression, sexual orientation, national origin, age, disability, marital or family status, veteran status, genetic information, or any other characteristic protected by applicable laws in the United States, Canada, or other jurisdictions where we operate.

In Canada, we comply fully with the Ontario Human Rights Code, the Accessibility for Ontarians with Disabilities Act (AODA), and related employment legislation. We encourage applications from members of equity-seeking and underrepresented groups.

GCG is dedicated to providing barrier-free recruitment and selection processes.

#LI-Onsite