Accounts Receivable & Office Administrator

Sigma Life Sciences Inc. — Whitby, ON

Job Type: Full-time

Work Location: Whitby, ON

Salary: $22.00- $24.00 Per Hour

About the Role

Sigma Life Sciences Inc. is looking for a reliable, organized, and detail-oriented Accounts Receivable & Office Administrator to join our team in Whitby.

This is a varied, hands-on role in a manufacturing and distribution environment, combining accounts receivable, customer order processing, customer service, and general office administration.

The successful candidate will be comfortable managing multiple priorities, maintaining accurate records, communicating professionally with customers and vendors, and supporting the smooth day-to-day operation of the business.

Key Responsibilities

Accounts Receivable

- Prepare customer invoices and process billings.
- Process payments received by mail and through EDI.
- Monitor outstanding accounts and follow up on overdue payments.
- Investigate and resolve customer account discrepancies.
- Assist with weekly reports and general accounting support.

Order Processing & Customer Service

- Process daily customer orders accurately and efficiently, using in house Accounting system and EDI
- Respond to customer inquiries and assist with order-related issues.
- Maintain professional and timely communication with customers.

Office Administration

- Answer telephone calls, greet visitors, and respond to inquiries.
- Monitor and replenish office supplies.




- Coordinate office equipment maintenance and facility service requests.
- Schedule meetings, maintain filing systems, and provide general administrative support.

Qualifications

- 2–3 years of relevant office administration experience; manufacturing or distribution experience is preferred.
- Post-secondary education in Business Administration, Accounting, or a related discipline is an asset.
- Solid computer skills, particularly Microsoft Excel, Word, and Outlook.
- Experience with accounting software or ERP systems is an asset.
- Experience with accounts receivable, invoicing, order processing, or EDI transactions is preferred.
- Strong attention to detail, organizational skills, and the ability to manage multiple tasks.
- Excellent communication and customer service skills.
- Ability to work independently, solve problems, and handle confidential information professionally.

The Ideal Candidate You are a proactive and dependable team player who takes pride in accuracy, organization, and providing excellent customer service. You enjoy a diverse role and are comfortable balancing financial, administrative, and operational responsibilities.

Pay: $22.00-$24.00 per hour

Expected hours: 37.5 – 40.0 per week

Benefits

- On-site parking

Ability to commute/relocate:
- Whitby, ON L1N 6A6: reliably commute or plan to relocate before starting work (preferred)

Education:
- DCS / DEC (required)

Work Location: In person

📌 Accounts Receivable & Office Administrator (Whitby)
🏢 Sigma Life Sciences
📍 Whitby