This Site (And What It Demonstrates)

Why a portfolio is a demonstration, not a description

Most professional sites describe what someone can do. This one demonstrates it.

What’s on this page that proves the point

• The hero you scrolled past is a custom WebGL2 fragment shader — a 2D scalar field rendered as topographic isolines, with cursor and scroll velocity reacting in real time. No Three.js, no library. About 120 lines of GLSL ES 300.
• The voice agent speaks in my actual voice. Cloned via ElevenLabs Instant Voice Clone from two voice memos and routed through a Cloudflare Worker. The model answers from this CV via retrieval — every claim it makes is sourced from the page you’re reading.
• The resume mirror lets you drop your CV and asks GPT to give you an honest tailored pitch in either direction — why John should hire you, or why you should consider John. PDF or text. Vision-capable. Rate-limited.
• Page transitions use the View Transitions API directly. No cross-fade libraries. The hero canvas persists across routes — only the foreground content swaps.

Why this matters for hiring

AI engineering and operations leadership are converging. The shops that will win at deploying AI in industrial settings need leaders who understand both halves — the process-control discipline that comes from decades of operations, and the engineering reflex to build the tooling rather than wait for a vendor.

I have both. This page is the proof.

Stack notes for the technically curious

• Framework: Astro 5 SSR on Cloudflare Pages. Server-rendered HTML, hydrated only where interactive.
• AI: OpenAI for embeddings (text-embedding-3-small) and reasoning (gpt-4o-mini); Realtime API for voice; Whisper for transcription. ElevenLabs eleven_turbo_v2_5 for streaming TTS.
• Storage: Cloudflare Vectorize (1536-dim cosine) for the embedded CV. KV for rate limits and response caching.
• Type: Inter Variable + JetBrains Mono Variable, self-hosted.
• Performance: Sub-200ms TTFB at edge. WebGL canvas pauses after 90 idle frames to respect the user’s battery.