Early Research Prototype·2024·Spider R&D

VaultX

An early exploration of programmable consumer financial infrastructure combining crypto payments, recurring settlement, and NFC interfaces.

Cover image for VaultX

Overview & Research Motivation

An early Spider R&D systems-building project that developed my foundational interest in programmable financial state, identity, and transaction rails. The repository features smart contracts, backend microservices, and frontend interfaces exploring fiat-crypto conversion, NFT-collateral lending, recurring crypto payments, and NFC contactless point-of-sale integration on Solana.

The Core Systems Problem

  • Bridging contactless physical point-of-sale interfaces (NFC) with low-latency programmable blockchain settlement.

My Specific Technical Contributions

  • Contributed to backend transaction routing pipelines and NFC contactless payment integration prototypes.

Technical Stack & Tools

SolanaRustNode.jsTypeScriptNFC Protocols