# Quintin Adam — Principal Engineer (Ruby on Rails + AI) > Software Engineer specializing in Ruby on Rails. 12+ years building scalable payment systems, search infrastructure, eCommerce platforms, and AI-powered applications. Currently Principal Engineer at Wayfinder, based in Japan and working US hours. This is the AI-readable index for Quintin Adam's portfolio. The full file below holds his complete background — the same knowledge the site's terminal AI assistant answers from — as one clean markdown document. ## Start here - [Full profile — everything in one file](https://www.quintinadam.io/llms-full.txt): Complete career history, role-by-role deep dives, skills, availability, and real coding stats. - [Portfolio site](https://www.quintinadam.io/): The interactive portfolio with a live AI terminal assistant. ## Experience - [Wayfinder — Principal Engineer (Feb 2022 – Present)](https://www.withwayfinder.com): Principal Engineer behind a K-12 SEL platform trusted by major US school districts. - [Flourishing Florist — Founder - Developer (Jul 2017 – Present)](https://www.FF.florist): Solo-founded SaaS that helps independent florists double their online sales — live for 8+ years. - [CSG Inc — Project Manager - Full Stack Developer (Apr 2018 – Jun 2022)](https://www.quintinadam.io/llms-full.txt): Sole engineer of an enterprise audit platform spanning 2,000+ locations and 360k+ inspections. - [PacaOm — Developer (Jul 2018 – Jan 2019)](https://www.Pacaom.com): Built the video and payments core of a wellness e-learning marketplace. - [Wyndham Vacation Club — Contract Rails Full Stack Developer (Sep 2017 – May 2018)](https://www.quintinadam.io/llms-full.txt): Backend for an employee-benefits portal at a major vacation-club brand. - [TriQuest — Project Lead - Full Stack Developer (Aug 2016 – Sep 2018)](https://www.quintinadam.io/llms-full.txt): Lead payments engineer for an omni-channel fundraising platform (online + in-person + ACH). - [United League Games — Contract Rails Full Stack Developer (Jun 2016 – Nov 2017)](https://www.quintinadam.io/llms-full.txt): Fundraising features and a per-user feature-flag system for the FireFan fantasy-sports app. - [Utah United — Elasticsearch & Backend Developer (Apr 2016 – Jun 2016)](https://www.quintinadam.io/llms-full.txt): Sole engineer of an Elasticsearch political-analytics engine over 8 years of election data. - [Access Development — Full Stack Rails Developer (Jun 2014 – May 2018)](https://www.AccessDevelopment.com): Search infrastructure and the Heroku → AWS migration for the largest US discount network. ## Skills - [Skills & tools](https://www.quintinadam.io/llms-full.txt): AcroYoga, API Development, Android, AWS, Background Jobs, eCommerce, ElasticSearch, iOS, Javascript, Meditation, Mentoring, Performance Optimization, PostCSS, PostgreSQL, Python, Rails, Ruby, Stimulus, Stripe, TailwindCSS, TypeScript, Video Transcoding, Vue.js, Yoga, 🐈. ## More - [GitHub — @QuintinAdam](https://github.com/QuintinAdam): 100 public repos, ~18,000 contributions, Ruby-first. - [Live site status](https://www.quintinadam.io/status): Real-time uptime for this site, the Claude API behind the chat, and GitHub. - [Email](mailto:quintin@hey.com): Open to opportunities — US citizen (Michigan residence) — no visa sponsorship needed.