Product judgment
Positioning, privacy communication, store and support surfaces, launch cleanup, and technical trade-off thinking.
Product management and data analytics
Pengfan Chang
Product manager and data analytics candidate with hands-on product, data, and software work.
This site gives hiring teams a fast path through what I have shipped, how I reason about products, and where my data and technical skills show up in public work.
- Founder
- Swipht Group (swiphtgroup.com)
- Target roles
- Product management and data analytics
- Best evidence
- Products shipped, data workflows, public writing, and source code
- Strongest next step
- Review projects, then contact with the role or mandate
What to Evaluate
Data work
SQL, Python, Excel modeling, usage ledgers, evidence tables, and workflows that turn messy inputs into decisions.
Technical execution
Native-app, browser-extension, and open-web implementation across Astro, TypeScript, Cloudflare, Swift, Kotlin, Flutter, and tests.
Selected Work
Three public artifacts that show product judgment, analytical structure, and implementation depth.
Research extension
SA_agent
Google Scholar workflow tooling with journal-rank context, AI-assisted summaries, account models, and usage ledgers.
- Shows
- Product workflow, privacy-minded access, usage accounting, AI summary routing
Apple-platform media app
iThrea
Private media-library shell for user-controlled Emby, WebDAV, and local-folder sources across Apple surfaces.
- Shows
- Store positioning, subscription surface, privacy-oriented media browsing
Personal web system
jpfchang.org
Astro 6 SSR site with writing, RSS, terminal TUI, games, multilingual chrome, Cloudflare deployment, and tests.
- Shows
- Portfolio system, content strategy, data-backed tables, accessibility coverage
Recent Writing
Essays, field notes, and product/build notes.
Terminal Verse & Trail Notes Nov 10, 2025 · 4 min read
A November status report covering the new terminal aesthetic, daily KJV verse card, and what I've been hacking and hiking lately. UI Polish and Focus Update: Minimalism, Clarity, and New Directions Oct 19, 2025 · 7 min read
Comprehensive UI/UX refinements including TornadoVPS-inspired minimalism with Intel One Mono, removal of all decorative icons, improved donation UX, and announcing my current focus areas: GNU Hurd and Apple devices. Cloudflare IPFS Gateway Integration: Decentralized Content Delivery Oct 18, 2025 · 9 min read
Announcing IPFS (InterPlanetary File System) integration via Cloudflare Gateway. Serve images and assets from a decentralized network for improved resilience, censorship resistance, and content permanence.
Workshop
Secondary routes for experiments, games, and secure contact.
