sys.deployments
// live projects and the systems behind them
assay
investment appraisal software.
most financial tools treat investment appraisal as a simple math problem. i built assay the way finance professionals actually think about evaluating a project: bridging strict financial theory with practical decision support.
it performs structured financial analysis using a 9-metric matrix, including Net Present Value (NPV), Internal Rate of Return (IRR), Modified IRR, Payback Periods, Break-even Analysis etc.
the goal wasn't just to calculate the numbers, but to present the risk and outcome in plain English, allowing for informed, rapid investment evaluation.

Profitability Index
for every ¥1.00 invested, this project returns approximately ¥1.15 in present value.
exchango
multilingual currency converter.
currency conversion isn't just about simple multiplication. it is about real-time data reliability, historical context and accessibility across borders.
exchango tracks 150+ global currencies, providing live exchange rates alongside historical performance charts. it features seamless multi-language support and an interactive comparison engine.
designed to give users instant, accurate financial data without the clutter of traditional banking applications.

Data Visualization
interactive historical rate mapping built with Recharts, optimized for responsive cross-device viewing.