Years building
12+Across web, mobile, and the systems behind them.
Hey, I’m Santiago
I build products.And the toolsbehind them.
Engineer, maker, and technical lead. I turn complex problems into useful software, with care for every detail.
People, one team
14The largest cross-functional team I’ve led.
Release cycle time
-75%Through better pipelines and automated quality gates.
People learning together
100+Typical attendance at our community events.
01 Selected work
Good work. Built together.
Products shaped with ambitious teams. From the first architectural decision to the details people use every day.
Explore my experience
- Void.GGTechnical LeadLed architecture and delivery for a fast-moving esports platform across web, mobile, and backend systems, improving performance, release speed, and team velocity.
- X GamesSenior Full Stack EngineerBuilt and scaled the official X Games digital platform — a high-traffic sports media site serving millions of fans — with real-time live streaming, geo-based access control, and a programmatic ad infrastructure powered by Google Ad Manager.
- Optic PowerSenior Full Stack EngineerShipped across gaming, SaaS, and martech products in parallel, improving API performance by 40% while supporting launches for Team Liquid, NurtureBoss, and Stardust.gg.
02 Independent projects
Curiosity, made useful.
Small ideas that turned into real products. Tools, experiments, and open-source work I keep coming back to.
View all projects
Independent product
Lumen UI
Built Lumen UI: shared design foundations for Astro, React, Web Components, and native interfaces, with accessible primitives, product layouts, Figma, and AI tooling.
Independent product
PostLens
Built an iPhone-first private visual content studio for selecting strong photos, applying transparent on-device enhancements, composing layouts, and exporting social-ready work.
- Between ContractionsCreatorBuilt a calm, privacy-first contraction timer for the web, iOS, Android, watches, widgets, and optional real-time partner coordination.
- RoadScoreCreatorBuilt a bilingual, offline road-trip card game that turns one passenger-operated phone into a shared scoreboard, deck library, and private trip journal.
03 The notebook
A few things on my mind.
Notes from the work, and the life around it. Software, books, games, and things worth figuring out.
Read all articlesOpen-sourcing authentication without sharing accounts
Why I made @santi020k/auth-cloudflare public, how it reuses email-code and passkey policy across Cloudflare applications, and where the shared boundary deliberately ends.
How I Built the santi020k Developer Tool Ecosystem
How Lumen, ESLint Config Basic, Quality, Astro Doctor, Commitprompt, Dep Beacon, OG, Theme, and Auth form one practical system for my projects.
What Changed When I Started Writing Architecture Notes Every Month
A year of monthly architecture notes changed how I review systems, how I catch drift, and how I explain decisions to the people who inherit them.
Why I Moved from VS Code-Based Editors to Zed
Why Zed became my editor of choice: responsive work across multiple projects, flexible AI integrations, and Dep Beacon now available as a Zed extension.
Prefer a quieter way to keep up?
Follow via RSS04 Beyond the code
Better when
shared.
Good ideas grow through conversation. I help bring people together to learn, build, and share what actually works.