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Karim HamzaKH

Karim Hamza

Order to Cash & Customer Service Specialist

€125/day
Budapest, HU
3-7 years

Average response time: 1 hour

About Karim

I am an ACCA-certified Financial Accountant and B2B Customer Operations Specialist with 6 years of corporate experience within high-growth international Shared Service Centers (SSCs). I hold a Bachelor’s degree in Business Administration & Management and specialize in the critical intersection of corporate finance, billing operations, and premium client relationship management.

I bridge the gap between financial compliance and customer success. By combining rigorous accounting standards (IFRS/ FR/UK GAAP) with exceptional trilingual communication, I help European enterprises, SaaS providers, and FinTech firms manage complex B2B client relationships, resolve financial disputes, and streamline their Order-to-Cash (O2C) processes.

★ WHAT I BRING TO YOUR PROJECT ★

• B2B Customer Care & Account Operations: Experienced in managing high-stakes client relationships, onboarding enterprise accounts, and handling complex customer escalations, inquiries, and billing disputes with maximum empathy and professionalism.
• ACCA-Qualified Financial Accounting: Audit-ready management accounting, general ledger entries, financial analysis, and rigorous balance sheet/invoice reconciliation.
• Advanced Billing & O2C Management: 6 years of experience reducing DSO, managing cash allocation, processing refunds/credit notes, and building seamless customer billing workflows.
• Trilingual Execution: Flawless corporate communication and customer support in English, French, and Arabic. I act as a seamless native bridge for firms managing diverse client bases across Europe, the UK, and the MENA region.
• Tech Stack Proficiency: Advanced ERP navigation (SAP FI/CO, Oracle, NetSuite), modern Customer Care tools (Zendesk, Salesforce Service Cloud), and high-level Excel.

Available for fully remote contracts across Europe or hybrid projects in Budapest. Let’s connect to discuss how I can support your finance or operations team.
  • French

    Native or bilingual

  • English

    Fluent

  • Arabic

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • EPTA
    Accounts Receivable Specialist
    August 2025 - Today (1 year)
    Managed the end-to-end billing cycle by creating and distributing accurate customer invoices based on sales orders & contract and quote terms. Processed financial adjustments, including credit/debit memos and write-offs, while analyzing the root causes of bad debt to recommend preventative risk measures. Spearheaded the AR and Credit data migration from France to Budapest, ensuring the integrity of financial risk data during Knowledge Transfer (KT) sessions with KPMG. Partnered closely with credit risk controllers to monitor "At-Risk" portfolios, providing data-driven insights on past-due accounts to minimize the company's Days Sales Outstanding (DSO). Conducted preliminary credit assessments for new and existing customers by reviewing financial statements and payment history to support Credit Risk Controllers in setting appropriate credit limits.
  • Avis Budget Group
    Senior Specialist - Fines Management
    June 2022 - May 2025 (2 years and 11 months)
    Processed and delivered accurate customer invoices to ensure timely revenue recognition. Provided training and orientation for new team members on departmental procedures and systems.
  • Avis Budget Group
    Specialist - Fines Management
    September 2021 - May 2022 (8 months)
    Managed the customer billing process by generating and distributing accurate invoices. Investigated and resolved all customer payment and billing discrepancies, ensuring positive customer relationships while securing payment. Maintained accurate and up-to-date customer financial records in Oracle, ensuring reliable data for downstream accounting and reporting processes. Investigated and resolved payment discrepancies to secure timely cash flow, while identifying risks based on recurring payment delays.

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Education

  • Bachelor of Business Administration
    Hungarian University of Agriculture and Life Sciences
    2023
    Bachelor of Business Administration
  • Chartered Certified Accountants
    Chartered Certified Accountants

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