You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Olga Mongo MandelloOM

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Olga

With over 7 years of experience in accounts payable (SMEs and large corporations), I provide support for teams, cover for absences, or handle accounting catch-up.

I manage the supplier cycle:
- Invoice entry and verification
- Accounting and analytical allocation
- Account reconciliation and analysis
- Dispute management and follow-ups
- Payment runs
- Closing contributions (accruals, prepayments)

Proficient in SAP (ECC/CRM), Sage 1000, Dynamics 365 BC, Yooz, X3, I am quickly operational and autonomous.

Rigorous, organized, and with good interpersonal skills, I secure and ensure the reliability of your accounting processes.
  • French

    Native or bilingual

  • English

    Basic

Can work on-site
Paris (up to 50km)

Experience

  • LEASYS
    Accounts Payable Accountant
    November 2025 - Today (7 months)
    78300 Poissy, France
    • • Entry of General and Ancillary Expense supplier invoices on SAP Logon (ECC and CRM)
    • • Response to supplier information requests by email, dispute management.
    • • Accounting and analytical allocation of supplier invoices.
    • • Accounting entry according to coding rules.
    • • Creation of supplier accounts in the database, routine account administration, processing of dematerialized documents.
    • • Account analyses
    Invoice Entry and Allocation Supplier Dispute Management Account Analysis and Monitoring
  • MANPOWER Groupe - TINGARI
    Freelance Accounts Payable Accountant
    July 2025 - September 2025 (2 months)
    92800 Puteaux, France
    • • Accounting and analytical allocation of supplier invoices on Dynamics 365 Business Central (BC) software
    • • Accounting entry according to coding rules.
    • • Processing of invoices and credit note requests, supplier follow-ups.
    • • Response to supplier information requests by email, mail, and phone, dispute management.
  • Groupe MONVETO
    Freelance Accounts Payable Accountant
    March 2025 - April 2025 (1 month)
    Tourville-La-Riviere, France
    • - Entry of invoices on SAGE 1000 DEMAT software
    • - Update of the reconciliation for the largest company in the group: reconciliation from January 2024 to November 2024 ==> reconciliation on SAGE 1000 software
    • • Accounting and analytical allocation of supplier invoices.
    • • Management of a portfolio of 5 companies
    • • Processing of invoices and credit note requests, supplier follow-ups, payment preparation.
    • • Expense report management on Notilus software.
    • • Accounting and analytical allocation of supplier invoices.
    • • Payment runs on CYPRES software.
    • • Participation in closing for supplier debtors
    • • Response to supplier information requests by email, mail, and phone, dispute management.
    • • Reconciliation of purchase orders with supplier invoices, entry of supplier invoices under Yooz.

Recommendations

Be the first to recommend Olga

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Professional Qualification Certificate Level IV: SME Accounting Technician
    I F O C O P
    2003
    Certificat de capacité professionnelle Niveau IV: Technicien Comptable PME
  • Telemarketing Training
    AXOS
    2000
    Formation Télémarketing

Skill set

Categories