Position Summary:

We are seeking a highly organized and proactive Office Administrator to manage the daily administrative functions of our busy construction office in Mississauga. As the sole administrative support, you will play a key role in maintaining smooth office operations, supporting project managers, and handling basic bookkeeping and payroll duties. This role requires a self-starter with excellent multitasking abilities and strong attention to detail, who thrives in a fast-paced, energetic environment.

Key Responsibilities:

Administrative Duties:

- Serve as the primary point of contact for internal staff, vendors, and clients.
- Manage all incoming calls, emails, and postal mail; direct inquiries appropriately.
- Maintain office supplies, equipment, and vendor relationships.
- Coordinate meetings, appointments, and schedules for management and field staff.
- Assist in preparing and managing job files, permits, and project documentation.
- Maintain health & safety and training documentation and coordinate training as needed.
- Ensure the office is organized, clean, and operating efficiently.

Bookkeeping (Light):

- Process and record accounts payable and receivable transactions.
- Match purchase orders, packing slips, and invoices.
- Perform bank reconciliations and monthly credit card reconciliations.
- Assist in preparing reports for management or external accountants.
- Maintain accurate records in accounting software (QuickBooks).

Payroll (Light):

- Collect and process bi-weekly employee timesheets.
- Prepare payroll summaries for external payroll providers processing.
- Track vacation, sick days, and hours for hourly and salaried staff.
- Assist with WSIB reporting as needed.

Qualifications:

- Minimum 3 years of experience in office administration,



ideally in the construction or trades sector.
- Working knowledge of bookkeeping principles and payroll processing.
- Proficiency in Microsoft Office Suite (Word, Excel, Outlook).
- Experience with accounting software (QuickBooks).
- Excellent verbal and written communication skills.
- Strong organizational and time-management skills.
- Ability to work independently with minimal supervision.
- Knowledge of Ontario employment standards and WSIB regulations is an asset.

Preferred Qualifications:

- Post-secondary diploma or certificate in Business Administration, Accounting, or related field.
- Familiarity with CRM software (Salesforce) is an asset.
- Basic understanding of construction project billing.

Work Conditions:

- Full-time position: Monday to Friday.
- Office-based in a fast-paced construction environment.
- Occasional lifting of office supplies or job-related materials (up to 25 lbs).
- Must be comfortable working independently and taking initiative.

Compensation & Benefits:

- Competitive salary commensurate with experience.
- Benefits package (after probation period), including health, dental, life and disability.
- Opportunities for growth within a growing company.
- Supportive and respectful team environment.

We invite you to apply today! Job Type: Full-time

Pay: $50,000.00-$65,000.00 per year

Benefits

- Casual dress
- Dental care
- Disability insurance
- Extended health care
- Life insurance
- On-site parking
- Paid time off

Ability to commute/relocate:
- Mississauga, ON L5N 5Z2: reliably commute or plan to relocate before starting work (required)

Experience:
- Administrative: 3 years (required)
- Bookkeeping: 2 years (preferred)
- Payroll: 2 years (preferred)

Language:
- English (required)

Work Location: In person

📌 Office Administrator (Mississauga)
🏢 Nawkaw
📍 Mississauga