Finance & Account Administrative Officer Internship (6 Months)

Bangkok, th on site Until 9/8/2026 1+ years exp First posted July 10, 2026 Last posted July 10, 2026
Job description

At KEENFINITY, we are a globally leading provider of innovative and professional security and communication solutions. With over 4,200 employees in over 50 countries worldwide, our ambition is clear: we offer more than just technology – we secure, connect, and amplify the moments that matter in life.

Next to our passion for technology we’re very passionate about our work environment. Based on values such as trust, appreciation, and accountability we all work together to shape the future – boldly, customer-focused and with a strong team spirit.

  • Invoice to pay:
    • Verify invoices received from vendors.
    • Ensure that invoices are fully and correctly registered in ECM system and processed for approval in timely manner.
    • Coordinate account payable and payment process.
    • Support withholding tax and VAT payment/return process on accurately and timely for monthly tax filing process.
    • Sort, file, and maintain hard copy and electronic records of supplier tax invoices to support compliance with Thai tax regulations.
    • Ensure the correctness of withholding tax deduction and support to issue withholding tax certificate (if any).
    • Coordinate with BPO team for any payment issues or disputes.
    • Ensure the up-to-date vendor master data.
    • Verify the accuracy and correctness of receipt and supporting documents for staff reimbursement.
  • Bill to cash:
    • Coordinate with BPO team to offset collection and invoices in system.
    • Assist in reconciliation of incoming payments and resolving discrepancies.
    • Issue receipts and tax invoices for selected business and customers in a timely and accurate manner (bill placement).
  • Process improvement:
    • Support continuous process improvement
  • Thai nationality
  • Able to work more than 4 months (hybrid of part-time and full-time are negotiable)
  • Bachelor's or Master’s degree in Accounting, Business Administrative or related fields
  • Minimum of 1-2 years of experience in accounting, specifically in accounts payable, payment preparation, withholding tax, VAT, and bank/account reconciliation.
  • Strong knowledge of accounting principles and practices.
  • Proficiency in accounting software and Microsoft Office Suite (Excel, Word, etc.).
  • Excellent attention to detail and organizational skills.
  • Strong analytical and problem-solving abilities.
  • Fair command of English for effective communication.
  • Good communication skills and ability to work collaboratively in a team environment.

Regular working time: 

  • 9 AM – 6PM Mon to Fri

Compensation (from employer):
Up to 10000 THB

About this role

Summary

Assist with invoices, payments, tax, and reconciliation in a finance team.

Job title

Finance & Account Administrative Officer Internship (6 Months)

Experience level

1-2 years

Minimum experience

1+ years exp

Industry

security

Location requirements

Bangkok, remote work not specified

Salary

Up to 10000 THB

Management role

No

Skills & keywords

Required skills

accounting principlesaccounting softwareExcelattention to detailcommunication

Preferred skills

None specified

Specializations

accounts payabletaxreconciliationinvoice processingpayment
Locations

Structured locations inferred from the posting.

Bangkok, Thailand

On-site City