Hi, I'm
Steven Yoh
Software Engineer III · MBA
Full-stack Software Engineer with 4+ years of experience building scalable enterprise platforms for the AI-driven procurement industry. I specialize in React, TypeScript, GraphQL, and Hasura, and actively integrate AI tooling into my development workflow to deliver reliable, performant solutions for large enterprise customers. Based in San Jose, CA.
Experience
Where I've worked
Raindrop Systems Inc
Software Engineer III · San Jose, CA · Hybrid
- Shipped fullstack features across a cloud-native AI-driven procurement platform serving 221,000+ enterprise customers, using React, TypeScript, and GraphQL/Hasura
- Led development of Sourcing Event V3 and XLS data loaders — critical data import and visualization features adopted by large-scale enterprise customers
- Built E2E test infrastructure from scratch using Cypress, authoring 200+ automated tests across dev, staging, and production environments covering critical user flows
- Engineered automated Mattermost reporting that delivers structured test results to the entire dev team on every deployment, gating code review and validation before merge; runs nightly Invoice PDF suite on production with targeted alerts to on-call engineers
- Delivered 225+ merged PRs in FY2025; consistently rated "Exceeds Expectations" across performance reviews
Galvanize / Hack Reactor
Software Engineering Instructor · Cupertino, CA
- Mentored career-changers in JavaScript, React, and fullstack development through 1:1 coaching and live code reviews
- Conducted mock technical interviews to prepare students for industry hiring processes
Tesla
Senior Business Analyst · Fremont, CA
- Built internal energy analysis dashboards translating complex operational data into actionable visualizations for cross-functional teams
- Led resolution of high-escalation customer cases involving solar system design, installation, and sales disputes — partnering with legal and engineering to assess liability exposure and negotiate mitigations (system modifications, removals, or financial settlements) to resolve claims and prevent legal action against Tesla
Projects
Things I've built
NetworthIQ
- Built a real-time personal investment dashboard tracking $700K+ across 10 brokerage accounts, displaying live P&L, day change, and cost basis per position.
- Integrated Finnhub REST API for live equity quotes, 52-week highs/lows, beta, and dividend yield, with automated polling and in-memory caching.
- Designed a GraphQL backend using Hasura and PostgreSQL with normalized tables for positions, per-account holdings, cash balances, and daily snapshots.
- Implemented a scheduled cloud agent (Claude Code Remote) that fires at market close daily, fetching live prices and writing per-account market value history for trend analysis.
MinimalHomeDesignCo
What started as a 3D printing hobby turned into a profitable passive income stream. Designed and printed a pebble-shaped Oral-B toothbrush stand, sold on Etsy in two variants (iO Series 3–6 and 7–9). Starred Seller with 47 sales, 5.0 star rating across 8 reviews, and $1,289 in revenue — 8 months in.
Skills
What I work with
Frontend
Backend & Data
Testing & Deployment
Tools
Education
My background
Hack Reactor
Advanced Software Engineering Immersive
University of San Francisco
Master of Business Administration (MBA) · Marketing
UC Santa Cruz
BA · Environmental Studies
Resume
My background
Download my resume for a full overview of my experience, education, and skills.
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Get in touch
I'm currently open to new opportunities. Whether you have a question, a project idea, or just want to say hi — my inbox is always open.