Skip to content
Zayne Lovecraft

Software Engineer III at McDonald's · Open-source builder

I'm Zayne. I build things.Enterprise Next.js, AI agents, and fast web systems.

By day I'm a Software Engineer III on McDonald's global web ordering platform. Outside of work I ship open-source AI agents, MCP servers, and Next.js performance tooling—and write up what I learn along the way.

Boise, ID · RemoteResume (PDF)
Portrait of Zayne Lovecraft

Featured work

  • McDonald's
  • VEGAS.com

Work

Selected work & open source

All work
McDonald's Global Web Ordering homepage (Macca's Australia)
Enterprise

McDonald's Global Web Ordering

Software Engineer III (Day-1 Engineer & Code Owner)

Single-codebase global web ordering platform serving multiple international markets and millions of possible store and menu pages.

  • Next.js (Cache Components & PPR)
  • React
  • TypeScript
  • ISR
VEGAS.com Las Vegas shows and hotel booking homepage
Enterprise

VEGAS.com

Software Engineer

Travel, hotel, and show ticketing for Las Vegas.

  • React
  • JavaScript
  • REST APIs
  • Microservices
Explore all 8 open-source repos on GitHubagent-os, yt-skill-mcp, ai-content-workflow, geo-audit, next-vitals-guard, md-cover, porthog, and dotfiles.

What I do

Engineering that shows up in the metrics

01

Full-stack product engineering

Next.js App Router and React 19 platforms with clean server/client boundaries, typed state, auth/session handling, and Postgres-backed APIs.

  • Next.js
  • React 19
  • TypeScript
  • Zustand
  • Supabase / Postgres
  • ISR & PPR
02

Technical SEO, performance & accessibility

Core Web Vitals budgets, structured data, sitemap and crawl hygiene, internal-link systems, and WCAG-minded component design.

  • Core Web Vitals
  • Lighthouse
  • JSON-LD
  • Sitemaps
  • llms.txt & GEO
  • WCAG AA
03

AI systems & developer tooling

Production LLM workflows: structured generation, Model Context Protocol (MCP) servers, durable pipelines, and automated quality gates.

  • AI SDK
  • Anthropic / OpenAI
  • MCP Servers
  • Durable workflows
  • Playwright
  • Vitest

Blog

Notes on AI, performance & SEO

All posts

Experience

Where I've worked

Full resume
  1. McDonald's

    Software Engineer II → Software Engineer III

    Feb 2024 – Present

  2. VEGAS.com

    Software Engineer

    May 2022 – Mar 2024

  3. Independent

    Freelance Software Engineer

    Feb 2020 – Mar 2022

FAQ

Common questions

What does Zayne Lovecraft specialize in?
Zayne Lovecraft is a Software Engineer III at McDonald's specializing in Next.js, React 19, TypeScript, Cache Components and Partial Prerendering (PPR), AI and Model Context Protocol (MCP) developer tools, Core Web Vitals performance, WCAG accessibility, and Technical SEO.
What platforms and open-source tools has Zayne Lovecraft built?
Zayne is a Day-1 engineer and platform Code Owner on McDonald's Global Web Ordering platform, previously built eCommerce booking experiences at VEGAS.com, and maintains open-source tools including agent-os, yt-skill-mcp, ai-content-workflow, geo-audit, next-vitals-guard, md-cover, porthog, and dotfiles.
Where is Zayne Lovecraft based?
Zayne Lovecraft is based in Boise, Idaho and works remotely across the United States.

Contact

Get in touch.

Reaching out about a software engineering role, open-source tooling, or technical collaboration? Send a note and I'll get back to you.