MATT JI // CASE STUDIES
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// SECTOR: WORK 05 CASES

Selected work

Each case is a programme with a number that had to survive an audit: what it was, what I did, and what it changed.

Lead Operations @ O3 Energy · 2016 — 2020

Led data architecture and commercial asset steering for a solar energy portfolio exceeding $100M+. Built dynamic quantitative valuation and yield models under bank audits, automated mobile field data capture, and structured counterparty risk hedging.

Governed quantitative operations across $100M+ in assets; coordinated M&A due diligence with institutional lenders, tax equity, and Fraunhofer ISE research frameworks.
Research & Implementation (Go) · 2026

An experimental tokenization and semantic sensing substrate built around a Fibonacci-radix streaming state machine (FSVM). Evaluates bounded per-step work bitstream ingestion, structural calibration via adjacency width, and Zobrist hash seed tables.

Demonstrated that structural adjacency width acts as a locality-sensitivity selector; falsified seed-only detector diversity through automated corpus benchmarks.
Personal Infrastructure Fleet · Active

Production-grade, fully reproducible multi-host fleet (NAS, workstations, cloud endpoints) managed with Nix Flakes. Features a custom SSH Certificate Authority with automated rotation, age/SOPS secret encryption, automated self-upgrades, and a Taskfile control plane.

Zero manual server configuration. One-command host commissioning, automated morning kernel boot validation, and air-gapped secret hygiene.
Creator & Systems Architect · 2024 — Present

Thin, server-rendered Go application turning unstructured task requirements into immutable, content-addressed specifications. Features append-only event sourcing, a keyboard-first terminal UI, and curl-friendly endpoints.

Single-binary deployment, sub-millisecond route resolution, zero frontend dependencies, and deterministic audit trail.
Build Pipeline & Typesetting · Active

A local build pipeline compiling structured JSON into pixel-perfect A4 PDFs with Typst. Enforces geometric typographic ratios (φ = 1.61803) with sub-second compilation, replacing LaTeX and browser-based PDF toolchains.

One source of truth across the PDF resume, cover letters and this site; hermetic compilation with no runtime Node.js and no headless browser.

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