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WYATT AU
Full Stack Engineer
Building deterministic infrastructure and high-performance systems. Currently bootstrapping QuestHive.
United Kingdom // wyatt_au@protonmail.com
001 — ABOUT
Systems thinker, infrastructure builder.
UK-based backend and DevOps engineer with 6 years of experience building reproducible infrastructure, CI/CD pipelines, and high-performance systems. I architect solutions that stay standing after the next "must-have feature" ships to production.
My work spans distributed systems, real-time data pipelines, developer experience tooling, and security-focused sandboxing. I believe in deterministic builds, modular architecture, and infrastructure that can be reasoned about.
Currently focused on WebAssembly-powered developer tools and infrastructure automation through QuestHive. When not shipping code, I'm probably debugging a CI pipeline or contributing to open-source projects that solve real problems.
002 — FEATURED PROJECTS
plychart
FeaturedHigh-performance WASM charting library for Rust. Renders candles, heatmaps, gauges, vol surfaces and correlation matrices to canvas, with a framework-agnostic zoom/pan interaction state machine and a JSON API consumed by SolidJS islands.
Rust · WASM · TypeScript · SolidJS
ferro
FeaturedHigh-performance, self-hosted file storage platform in Rust. WebDAV, OIDC, WASM, S3-compatible API and full-text search in a single binary you run yourself.
Rust · WASM · WebDAV · S3
crawlkit
FeaturedSite crawl kit in Rust. Crawls, analyzes and stores SEO and content signals for whole sites, with a WASM build that powers the live SEO audit dashboard on this site.
Rust · WASM · SEO
model-router
FeaturedCost-aware LLM routing core. Per-model pricing tables, USD budget tracking and task-class routing with fallback chains, so agentic workloads pick the cheapest model that can do the job.
Rust · LLM
Aileron
FeaturedA blazingly fast, keyboard-driven web environment built in Rust with the Servo rendering engine. Features native window tiling, Lua-configurable keybindings, zero-extension ad-blocking via request filtering, and an integrated AI MCP server that allows LLMs to observe and interact with web content. Designed to be a performant alternative to Electron-based browsers.
Rust · Servo · Lua
Clawdius
FeaturedRemote agentic coding environment with WASM-based sandbox isolation. Uses Linux bubblewrap for read-only system access with full filesystem isolation, enabling safe execution of untrusted code while maintaining performance advantages over traditional containerized approaches.
Rust · WASM · Bubblewrap
003 — WASM SHOWCASE
Interactive Demonstrations
Real-time, client-side computations powered by WebAssembly. No server round-trips.
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SVI VOL SURFACE
Quasi-explicit SVI calibration from live Deribit option chains. Computed in WASM.
BTC VOLATILITY SURFACE (SVI)
Fitting SVI slices...
WALK-FORWARD BACKTEST
Three strategies. Fitted per window. Net of slippage and commission. No look-ahead.
PORTFOLIO BACKTEST
Backtesting portfolio...
FOURIER SERIES — TIME VS FREQUENCY
Partial sums S_N(t) converge to the target waveform while the magnitude spectrum |c_n| traces a continuous analytic envelope. Drag the harmonic count and watch Gibbs overshoot persist at discontinuities.
S_N(t) = sum_n a_n * sin(n * w * t + phi_n)
Sine: a_1 = 1, all other a_n = 0.
Truncating the series at N leaves an RMS (L2) error that shrinks as N grows; smooth targets (sine, triangle) converge fastest. Near a jump discontinuity the partial sums overshoot by about 8.9% no matter how large N gets. This is the Gibbs phenomenon: the overshoot narrows but never disappears.
004 — EXPERTISE
Systems Programming
Rust, C++, C, Lean 4, WASM
Web Assembly
Leptos, wasm-pack, WASM sandboxing
Infrastructure
Docker, Kubernetes, Cloudflare, Terraform, Nix Flakes
Data Engineering
PostgreSQL, TimescaleDB, Redis, Prometheus + Grafana
Security
Bubblewrap isolation, CSP headers, Keycloak IAM
UI/UX
SolidJS, Flutter, Brutalist design, Theme systems
005 — EMPLOYMENT
Founder & Backend Engineer
Jun 2025 — PresentQuestHive
Bootstrapping an early-stage SaaS platform focused on infrastructure automation. Responsible for system architecture, interfacing services, and deployment pipelines.
Freelance Developer
2022 — 2025Self-Employed
Delivered full-stack solutions for clients including web applications, mobile apps, and infrastructure automation.
006 — CONTACT
Get in touch.
Open to collaborations on high-performance systems, infrastructure tooling, and developer experience projects.
Send a Message