Oscar Welch

Computer Science graduate with an interest in fintech, AI and wealth management. Below are some projects I built in my spare time.

Selected work

Spending categoriser

A tool that pulls in raw bank transaction data and automatically tags each transaction by category using a lightweight ML classifier, so you can see where your money actually goes.

Python · scikit-learn · Plaid API
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Net worth tracker

A dashboard that pulls together accounts, investments, and debts into one view, with simple projections for where your net worth is headed based on current saving and spending habits.

TypeScript · Next.js · Postgres
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Portfolio risk assistant

A small side experiment using an LLM to explain portfolio risk in plain English — reading in holdings and generating a short, jargon-free summary of concentration and volatility.

Python · Claude API · Pandas
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Tools & languages

PythonTypeScriptSQLMachine Learning LLM APIsPostgresReactDocker
oscarwelch1@gmail.com
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