About Unlimit

Unlimit is the global financial infrastructure for the borderless agentic economy. Designed to bridge the gap between fragmented local markets and the future of autonomous commerce, Unlimit provides the programmable operating layer for the world’s most ambitious businesses.

Through an integrated technology stack, the platform unifies global payment acceptance, programmable financial accounts, and digital asset rails into a singular financial layer. By mapping hyper-local payment ecosystems directly into its architecture, Unlimit enables businesses to move value and settle transactions instantly across continents.

Built on decades of hard-won regulatory depth and an extensive global license portfolio, the platform provides direct access to a massive global infrastructure. With major hubs in London, San Francisco, Singapore, São Paulo, and Mexico City, Unlimit is building the infrastructure that makes global expansion a matter of code, not geography.

• Handle Visa and Mastercard disputes and chargebacks within acquiring operations.
• Conduct fraud case analysis.
• Manage cases throughout the dispute lifecycle.
• Collect, review, and prepare supporting documentation (evidence).
• Prepare and submit chargeback responses (representments).
• Monitor dispute deadlines and ensure compliance with card scheme requirements.
• Communicate with merchants and internal teams regarding dispute cases.
• Maintain accurate dispute records and reporting.

• 1 year of experience in disputes, chargebacks, fraud a fintech, bank, or acquiring environment. Internship experience is welcome.
• Basic understanding of the card payment ecosystem: participants (issuer, acquirer, merchant, card schemes), the transaction lifecycle, authorization, clearing, and settlement.
• Understanding of common fraud types and the difference between fraud, friendly fraud, and merchant-related disputes.
• Good organizational and time-management skills, with the ability to handle multiple cases and prioritize by deadline.