Invoicing Officer

Process Engineering Specialists (PES) is a multi-discipline consultancy providing specialist project management, validation, and automation services to our pharmaceutical clients throughout Asia, Europe, and the US. We are currently recruiting for the following position based in Singapore:

Invoicing Officer

We are hiring a Invoicing Officer with 3-5 years of relevant experience. This permanent position reports to our Singapore Operations Manager, based in Jurong East.

Objective:

To ensure accurate and timely preparation, processing, and delivery of invoices, as well as maintaining financial records related to billing activities.

Key Responsibilities:

1. Invoice Preparation & Management for group companies in Singapore and overseas.

• Generate and issue accurate invoices to clients/customers based on agreed terms.

• Verify billing data such as purchase orders, contracts, or service delivery records.

• Handle recurring and one-time billing cycles.

2. Data Entry & Record Keeping

• Key monthly self-invoicing invoices to our accounting software.

• Update customer accounts with invoices, payments, and credits.

3. Communication & Coordination

• Liaise with internal departments (sales, operations, finance) for billing inputs.

• Liaise with client and ensure all Purchase Order balances is sufficient for next cycle invoicing.

• Respond to client queries regarding invoices, payments, and discrepancies.

4. Payment Monitoring

• Track receivables and follow up on overdue payments.

• Reconcile billing reports with payments received.
  

Key Skills & Competencies:

• Strong attention to detail and accuracy

• Proficiency in billing/accounting software (e.g., OCI and Xero)

• Time management and organizational skills

• Good communication and interpersonal skills

• Basic knowledge of finance and accounting principles
  

Qualifications:

Diploma or Degree in Accounting, Finance, Business Administration, or a related field

3-5 years of experience in billing, invoicing, or accounts receivable preferred