Developed a security-focused governance enhancement for the meetjn/NFT-Wallet repository by implementing the Advanced Guardian Contract with Timelocked Proposals. This Solidity-based smart contract enables the wallet owner to add or remove guardians, propose transactions subject to a mandatory timelock, and require multi-guardian approvals before execution. The contract also introduces an emergency pause and unpause mechanism to address potential incidents, strengthening asset protection and auditability. By leveraging blockchain and smart contract development skills, the work established a secure, multi-approval workflow that reduces single points of failure and aligns with best practices for decentralized asset management and compliance, ready for security review.