Onesystems Technologies Pte Ltd – Finance & Admin Assistant

OneSystems Technologies Pte. Ltd. is a leading Systems Integrator for Engineering, Information Technology, Security and Communications, providing holistic value engineering services and support to our clients. Established in Singapore in 2005 by top experts in engineering and electronics, we are growing from strength to strength. Progress was achieved by leveraging on its innovative technology, professional expertise, and industry experience in local and global project management, planning, and operations. The company's technologies are fully backed by our dedicated Research & Development expertise that ensures continuous technological advantage. 

Job Title: Part-Time Finance & Admin Assistant
Employment Type: Part-Time
Working Arrangement: Flexible weekday part-time hours. Candidates may choose to work mornings, afternoons, or specific weekdays, subject to mutual agreement on a regular schedule.

Job Summary

We are looking for a reliable and detail-oriented Part-Time Finance & Admin Assistant to provide ongoing administrative and finance support. The candidate will assist with document filing, invoice and delivery documentation, invoice matching, and other basic finance and procurement administrative tasks. This role is well-suited for individuals seeking stable and regular part-time schedules.

Key Responsibilities

• Perform three-way matching of supplier invoices against purchase orders (POs) and Goods Received Notes (GRNs) to ensure billing accuracy.
• Maintain hardcopy and digital filing systems for invoices, delivery orders (DOs), payment vouchers, and related records.
• Check invoices and supporting documents for completeness and accuracy and assist with any follow-up required.
• Assist with general finance and procurement documentation, data entry, and basic administrative ad-hoc tasks as required.

Requirements

• Basic understanding of bookkeeping, invoicing, or administrative documentation processes.
•  Good attention to detail, with strong organisational skills and a reliable approach to handling paperwork.
• Basic proficiency in Microsoft Office, particularly MS Excel, Word, and email.
• Prior experience in basic Accounts Payable (AP) or Accounts Receivable (AR) tasks, invoice matching, or administrative filing will be an advantage.