John S.
Senior Accounting Reconciliation Specialist
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About
John S., a seasoned Senior Accounting Associate with over six years of experience, excels in managing high-volume accounts receivable, accounts payable, and chargeback operations within international e-commerce and payment environments. Based in Toledo City, Cebu, Philippines, he has honed his skills in QuickBooks and Excel, mastering tools like pivot tables and VLOOKUP/XLOOKUP for large-dataset analysis. John has led dispute investigations and conducted multi-platform reconciliations across various payment processors, bank accounts, and internal ledgers. His career includes roles as an Accounts Receivable & Chargeback Specialist at YWS Ventures and a Disputes & Financial Controls Advisor at ChargebackOps Security. With expertise in preparing evidence packages for representment and reducing chargeback rates, he collaborates with finance and operations teams to prevent recurring errors and drive process improvements. His technical proficiency extends to platforms like Stripe, PayPal, and Klarna, supporting efficiency in high-stakes financial environments.
Experience
Accounts Receivable & Chargeback Specialist
YWS Ventures · 2025 — 2026Managed end-to-end chargeback reconciliation across Shopify Payments, Stripe, and PayPal, focusing on high-value disputes. Conducted daily reconciliations between payment processors, bank settlements, and internal ledgers to identify and resolve discrepancies. Compiled structured evidence packages for representment within processor deadlines. Maintained accounts receivable records and ensured accurate payment allocations. Developed Excel workflows to reconcile high-volume transactions and identify anomalies. Collaborated with finance and operations teams to address dispute root causes, achieving a monthly chargeback rate of 0% for three months.Disputes & Financial Controls Advisor
ChargebackOps Security · 2025 — 2026Provided guidance to international e-commerce merchants on dispute management and chargeback recovery strategies. Verified transaction records and ensured ledger alignment prior to submitting disputes across PayPal, Stripe, Klarna, and bank portals. Executed post-resolution reconciliations to verify posting accuracy across financial systems. Created reporting dashboards to track dispute metrics, identifying opportunities for process enhancements to minimize operational discrepancies.Payment Processing & Financial Support Analyst
ALFA / TasksEveryday · 2022 — 2025Processed and validated payments, refunds, and adjustments across various financial systems, ensuring precise postings to A/R. Resolved over 500 payment disputes and discrepancies monthly using payment logs and financial reports, escalating unresolved items as necessary. Reconciled daily transaction activities impacting accounts receivable and supported month-end reporting preparation. Developed weekly and monthly reports on payment accuracy and operational KPIs, aiding international DTC and Shopify-based merchants with disputes related to fulfillment and delivery.Customer Service Representative
Amazon Seller Operations — Teleperformance · 2019 — 2022Addressed over 30 seller email cases daily, dealing with order, payment, refund, and chargeback issues tied to fulfillment discrepancies. Documented financial discrepancies, prepared case files, and escalated complex issues for further investigation. Ensured compliance with SLA and maintained accuracy in case documentation within a dynamic operational environment.
Skills & Expertise
Education
- Bachelor of Science in MechatronicsCebu Technological University, Main Campus, Cebu City · 2015 — 2021