I created and run Metalium, a peer-to-peer trading platform for gold, silver, and copper in Pakistan, with more than 1,000 users. I built its payments core—including escrow, commissions, subscriptions, and per-deal ledgers—and kept balances correct under concurrent trading with atomic transactions and locking.
At Exiom, I worked on two products as part of an Accenture developer's team. For CyberNut, I owned most of the backend, including the phishing email delivery pipeline, user tracking system, and acorn rewards ledger; I also built vendor tools and buyer ordering flows for a surplus food marketplace.

