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Santiago Vadillo

@santiagovadillo

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I resolve bilingual customer, fraud, claims, technical, and merchant support cases across high-volume environments.

Mexico

Message

At DoorDash, I support restaurants and merchants in English, troubleshooting tablets, connectivity, order flow, printers, apps, and account issues while managing follow-ups and cross-functional escalations.

Previously, I investigated fraud and transaction claims for JPMorgan Chase customers, resolving disputes involving cards, checks, transfers, ACH, Zelle, and account takeover. I bring 4+ years of customer service, case management, account analysis, and detailed documentation experience.

Experience

Work history, roles, and key accomplishments

Merchant Support / Tablet Support Specialist

DoorDash

Apr 2025 - Aug 2026 (1 year 4 months)

Provided English-language phone and email support to merchants, troubleshooting tablet, connectivity, order flow, and device issues. Analyzed merchant accounts, documented cases, and escalated cross-functionally while maintaining strong KPI performance.

Salesforce Slack Microsoft Teams THQ Astra Troubleshooting Account Analysis Case Management Phone Support

Claims Specialist

Teleperformance - JPMorgan Chase

Oct 2023 - Apr 2025 (1 year 6 months)

Delivered English-language phone support for banking customers with claims, disputed transactions, and fraud concerns. Investigated various transaction disputes, handled card blocking, documentation, provisional credits, and escalations, resolving most claims independently.

Fraud Investigation Claims Management Dispute Resolution Transaction Investigation Account Analysis Case Management Phone Support

Receptionist

Maha Gym

Jul 2022 - Oct 2023 (1 year 3 months)

Managed customer service across phone, WhatsApp, and in-person inquiries, handling memberships, scheduling, payments, and class information. Supported membership sales, renewals, and payment processing, and reviewed member accounts to resolve discrepancies.

Customer Service Payment Processing Account Analysis Cash Handling Scheduling