Avatar of a man who answers email at kyle@ but signs his code “Loco.”
He taught himself Swift to build the apps his own family needed. The internet caught on, and 50,000 developers followed him through the side door.
Open his personal site today and you land in the middle of an argument with the future. April 2026: notes on intercepting HTTPS traffic inside iOS apps, sitting next to reviews of the Claude Code desktop app, sitting next to a video with a title that picks a fight - “Why AI Made Coding Easier But Engineering 10x Harder.” This is Kilo Loco at full speed: half teacher, half security researcher, fully unconvinced that the easy thing is the right thing.
By day he is the iOS Tech Lead at Deque Systems, where the product is accessibility - the testing tools that decide whether an app works for someone using a screen reader or a switch control. It is fitting work for someone whose origin story was about being heard. Since June 2024 he has led the iOS team through six releases and more than thirty-seven merged pull requests, which is the unglamorous arithmetic of actually shipping software rather than tweeting about it.
He keeps the site running as what he calls “a digital time capsule” - a public feed of projects, half-thoughts, and dead ends. Most engineers hide the mess. He posts it. The result reads less like a portfolio and more like a workshop with the door left open: PostHog SDK fixes here, a macOS testing app named Xamrock Studio there, an open-source project called SwiftMCP a little further down.
“Have you seen the singularity?”
— his entire GitHub bio, robot emoji includedHere is the strange specific that explains everything else: his first real app was built so his great grandfather, who was hard of hearing, could understand him. Not a to-do list, not a weather clone, not a portfolio piece. A tool to make a conversation possible. That is the whole of Kilo Loco in one anecdote - the conviction that code is for the person in the room with you, not the recruiter reading your resume.
The path there was not a path. Before 2016 he moved through restaurants, real estate, car sales, and telemarketing, collecting the kind of jobs that pay rent and nothing else. None of them stuck. Then he started building apps that he and his family actually wanted, and stumbled sideways through HTML, CSS, JavaScript, Objective-C, and finally Swift. He did not enroll. He did not get permission. He fell in love with the thing and let the love do the work.
His only formal credential points the other direction entirely: an Associate of Arts in Psychology from Mt. San Antonio College, 2012. It is tempting to call that irrelevant. It is probably the opposite. A developer advocate who reached fifty thousand people is, before anything else, someone who understands how other humans learn.
A man who sold cars now sells nothing but the idea that you can teach yourself anything.
— the arc, compressedIn 2016 he took his first real engineering seat as a Senior iOS Engineer at SageDom, building the activity feeds, chat, and event systems behind the tennis app TennisPal - a role he held in some form through 2023. A year in, he set up Kilo Loco LLC as a vehicle for freelance work and the technical content that would become his real signature. By 2018 he was teaching Swift and UIKit at SoCal Tech Academy, posting a 95% satisfaction rating and an 80% job-placement rate - numbers that suggest the psychology degree was not wasted.
Then the detour that nearly everyone in tech remembers some version of. He joined the scooter company Bird in 2019, building flight-tracking and ride features, and was caught in the COVID layoffs of spring 2020. What looked like a setback became the launch ramp: weeks later he landed at AWS Amplify as a Senior Developer Advocate, the role that turned Kilo Loco from a handle into an institution. Twenty-five-plus videos. Ten-plus blog posts. Fifteen-plus shorts. Fifty thousand developers on the other end.
The same year, he co-built say-their-names-ios, an open-source awareness platform born out of the 2020 racial-justice movement. It now carries more than 244 stars and sits in his GitHub history as proof that he treats code as something you can point at a problem that has nothing to do with quarterly revenue.
Developer advocacy is a strange job. It is engineering with a camera pointed at it, sales without a commission, teaching without a classroom. Most people who try it are good at one of those three things. The reason Kilo Loco's run at Amplify landed is that he had already done the other two for free. He had taught Swift to paying students at SoCal Tech Academy. He had spent years as a freelancer explaining to clients why the thing they wanted would take longer than they hoped. By the time AWS handed him a content budget, the only new variable was scale - and scale is exactly what a self-taught teacher with a psychology degree knows how to read.
The content itself never drifted into abstraction. Across the videos and posts the throughline is build-something-real: wire SwiftUI to a cloud backend, ship an app to TestFlight, make the thing work on a real device in your hand. He stayed close to Combine, Core ML, XCTest, and the Amplify stack - S3, Cognito, the parts of AWS that an iOS developer actually touches - rather than narrating architecture diagrams from a safe distance. It is the same instinct that produced the app for his great grandfather: code is for the person who has to use it.
The Teacher's TellThere is a quiet logic to where he landed in 2024. Deque Systems does not build a flashy consumer app - it builds the tools that test whether everyone else's apps can be used by people with disabilities. Accessibility is, at bottom, the same question Kyle Lee answered with his first project: can the person on the other end actually understand what you made? He taught himself to code so a hard-of-hearing relative could be heard; now he leads the iOS team building the instruments that hold the whole industry to that standard. Six releases. Thirty-seven-plus merged pull requests. None of it goes viral. All of it matters.
He built KiloLocoXcodeTheme, the color scheme in every one of his tutorials, then made it public so viewers could match the exact look of his editor. Most teachers give you the lesson. He gives you the lighting too.
In iOS circles, “Kilo Loco” is more recognizable than Kyle Lee. He answers to both, ships under the alias, and lets the legal name live mostly on the resume.
203 public repositories and an Arctic Code Vault Contributor badge - meaning some of his code is literally frozen in a mine in Svalbard, waiting out the apocalypse.
The throughline now is suspicion of easy wins. He is publicly wrestling with what AI does to the craft - happy that it lowers the barrier to writing code, worried about what happens to engineering when the writing gets cheap. The 2026 feed reads like a researcher poking at the new toys to find where they break: a breakdown of intercepting HTTPS traffic inside iOS apps, hands-on notes about the Claude Code desktop app, contributions back to the PostHog iOS SDK. It is the same move every time. Take the shiny new thing, open it up, find out what it actually does, then tell everyone.
His aspiration, read across the videos and the feed, is consistent: keep the side door open for the next self-taught developer, and figure out how to use the new tools without letting the craft rot underneath them. That is a harder sell in 2026 than it was in 2016, when the worst thing in your way was your own doubt. Now the tools will write the code for you, and the question is whether you understand what they wrote. He has been the person who needed the side door. Now he is the one holding it open, and asking - politely, with a robot emoji - whether you have seen what is coming through it.
“Play around with building apps.”
The entire curriculum, more or lessHis first motivation to code was helping a hard-of-hearing relative communicate - not landing a job.
“Kilo Loco” now outranks “Kyle Lee” in recognition across the iOS community.
His GitHub bio is a single rhetorical question: “have you seen the singularity?”
An Arctic Code Vault Contributor - his code is archived in a Svalbard mine for 1,000 years.
He treats his website like a public diary, posting the dead ends along with the wins.
One degree to his name, and it is in Psychology - arguably the perfect major for a teacher.