Accounting Clerk; Invoicing

Accounting Clerk (Invoicing) – Markham, ON – Full Time – # 6948

PTAG is seeking a detail‑oriented Accounting Clerk to support the Finance team, with a primary focus on client invoicing and billing accuracy. The ideal candidate will have hands‑on experience with Net Suite and a strong understanding of invoicing and accounts receivable processes.

PTAG is a leading Project Management Advisory & Services firm recognized across North America for helping world‑class clients deliver major capital projects successfully.

• Prepare, generate, and issue client invoices in Net Suite in accordance with contracts, rate sheets, and project agreements.
• Review billing data for accuracy, completeness, and required approvals.
• Coordinate with Project Managers, Project Controls, and Operations to resolve billing discrepancies.
• Maintain invoicing schedules and ensure invoices are issued accurately and on time.
• Track invoice status and assist with follow‑up on outstanding or disputed invoices.
• Maintain organized billing records and supporting documentation.
• Assist with month‑end close activities related to invoicing and revenue.
• Enter and validate accounting data in Net Suite.
• Support audits by providing invoicing and billing documentation.
• Perform other accounting and administrative duties as required.

• Diploma or certificate in Accounting, Finance, or a related field.
• 1–3 years of experience in an accounting, billing, or accounts receivable role.
• Strong understanding of invoicing and AR processes.
• High attention to detail and accuracy.
• Proficiency with Microsoft Excel.
• Strong organizational and communication skills.

• Experience using Net Suite for invoicing or accounts receivable.
• Experience in professional services, engineering, construction, or project‑based environments.
• Familiarity with time‑and‑materials, cost‑plus, or milestone billing.
• Basic knowledge of revenue recognition principles.

• Competitive compensation and comprehensive benefits package.
• Flexible work environment and opportunities for advancement.
• Employee Share Purchase Plan (ESPP).
• A culture that values safety, accountability, and excellence.

Compensation at PTAG varies depending on the specific office location, role, skill set and level of experience.

PTAG is proud to be an equal opportunity employer committed to fostering a diverse and inclusive workplace.