Frank Costoya

Senior software engineer in Orlando, Florida

I build every layer of the page you are looking at.

Nearly a decade of enterprise platforms, headless builds and cloud-native applications, now at HUB International.

  1. What you seeDesign, type, motion
  2. How it is laid outComponents and layout
  3. What the browser buildsStructure and rendering
  4. What machines readMarkup, Markdown, llms.txt
  5. Where content comes fromCMS, APIs, search
  6. What it runs onCloud, containers, CI/CD
Frank Costoya

Full-stack engineer with nearly a decade of experience building enterprise web platforms, headless architectures, and cloud-native applications. Passionate about clean code, modern tooling, and solving complex problems across the entire stack.

“He can easily translate technical nuances to a non-technical person and clients love him.”

Katie DesmondChief Revenue Officer, Partner at Imarc

What you see

The part people look at and use: design, type, color and motion.

How it is laid out

The components a page is assembled from, and the rules that place them.

What the browser builds

What the browser makes of the code, and how a page gets from the server to the screen.

What machines read

What search engines and AI assistants receive from this site: markup, Markdown and a map of the site.

New report

The web has a new reader

What the speakers at Sitecore Symposium 2026 said and showed about AI assistants that read the web for buyers, narrow the choice and sometimes make the purchase.

29% → 51%
of software buyers start in an AI assistant more often than in Google
0.1% → 7%
click-through when an answer cites a brand, against when it recommends it
20 → 3 to 10
pages gathered for one question, and the pages then read

Where content comes from

The systems that hold the words and the data: content management, APIs and search.

What it runs on

The servers, containers and pipelines that build the site and keep it running.

What people say

Latest writing

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Nov 6, 2026·11 min read

Harvard Researchers Found AI Agents Opened 36% More Pull Requests but Shipped Only 18% More Features

An opinion piece on a new Harvard working paper covering 655 companies: after adopting AI agents, teams opened 36% more pull requests but shipped only about 18% more features, because code review became the bottleneck. A sequel to my August piece on why understanding code still matters.

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Aug 17, 2026·11 min read

Learning to Code Matters More in the Age of AI, Not Less

An opinion piece arguing that AI makes learning to code more valuable, not less. Two personal stories about overusing AI, backed by industry data, make the case that when generating code is cheap, reading and understanding it becomes the skill that matters most.

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Aug 4, 2026·13 min read

How To Cure log4net's Lock Convoy on a Sitecore CD

At the worst moment of a load test, 279 of our Sitecore Content Delivery server's 427 threads were parked on a single lock, waiting for permission to write a log line. This is the story of how log4net's synchronous file appender becomes a lock convoy under concurrency, how a memory dump and two WinDbg commands convicted it in ten minutes, and the sixty-line never-blocking appender — built against Sitecore's log4net fork, because Apache-targeting packages won't load — that structurally abolished it. Plus an honest accounting of the trade-offs: dropped events over blocked threads, a crash that eats the queue, and a log that lags reality.

Want to talk about a role or a project?

Get in touch
Frank Costoya

Senior Software Engineer building for the modern web.

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