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Benjamin/Fintech Product

Ledger System Overhaul

Designed a dual-entry, event-based ledger with Modern Treasury, giving the rewards wallet a tamper-proof financial foundation.

BenjaminIntegrations
Ledger System Overhaul — Benjamin

The problem

Benjamin’s rewards wallet lacked a centralized, tamper-proof ledger, making it difficult to track user balances, reconcile payouts, and manage financial risk at scale.

What I did

  • Partnered with Modern Treasury to design and implement a dual-entry, event-based ledger system.
  • Built an event architecture that archives reward activity to S3 for ledger replay and future migration to an in-house system.
  • Integrated Snowflake mirroring, enabling scalable reporting without increasing operational data costs.
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