Khalid Nasiru

Engineered a non-custodial vault that automates yield distribution entirely on-chain — no admin keys, no off-chain cron jobs.

Designed and deployed a Solidity vault system where users deposit ERC-20 assets and accrue yield through an on-chain accounting model. Reward distribution is triggered permissionlessly, staking logic is isolated in a separate contract to reduce attack surface, and the React frontend uses Wagmi hooks to abstract all contract interactions behind a clean UI.

Replaced trust-based payment agreements with verifiable smart contract logic — escrow, milestones, and subscriptions without intermediaries.

Built a billing protocol that handles recurring subscriptions, milestone-based escrow, and dispute resolution entirely in Solidity. Fund release is gated by on-chain conditions, not manual approval. Integrated RainbowKit for seamless wallet UX and Next.js for the client dashboard, keeping the interface simple while the contract handles the complexity.

Cut cross-border transfer costs by routing remittances through Base L2 — fast finality, low fees, simple UX.

Remittance product deployed on Base that makes cross-border payments accessible without requiring users to understand L2 mechanics. The contract handles routing and settlement; the frontend exposes a minimal send flow. Focused on reducing friction at every step — from wallet connection to transaction confirmation.

Brought programmable payment logic to the Stellar network using Soroban — enabling treasury management and conditional transfers at near-zero cost.

Payment infrastructure built on Stellar's Soroban smart contract platform. Implements multi-sig treasury controls, programmable transfer conditions, and low-latency settlement optimized for emerging market corridors. Rust contract logic is paired with a React frontend using the Stellar SDK for transaction signing and submission.