About

I spent 18 years inside marketing teams. Now I build what they were missing.

Programmer, writer, agency founder, trainer and now product builder. Each job showed me the problem the next job solves.

Fleire Castro, portrait in a blazer

The early years

Learning how work actually happens

I studied at Mindanao State University–Iligan Institute of Technology and graduated cum laude in 2005. My first jobs were in code: a junior programmer for the Iligan city government, then a survey programmer and software developer at Western Wats.

My first marketing gig was a one-dollar article on oDesk. I was 21, I had a baby, and I had just been fired from my first corporate job. Writing for the internet paid the bills, then it became a craft, then it became a business.

Building the agency

Clients, people, budgets and the space between them

I founded Third Team Media in Cebu and ran it for ten years. It grew to 40 people and more than 100 client engagements, with clients such as Aboitiz and Megaworld, and it won a Silver Stevie for Services Company of the Year in 2014.

Running an agency taught me that work rarely breaks in the writing or the design. Work breaks in the handoff, in the approval that waits three days, in the brand guide that lives in one person's head, and in the report that the client never opens. I spent years patching those gaps by hand, often late at night because a client needed something by morning.

Becoming technical again

Back to the code, this time with AI

From 2017 to 2020 I trained entrepreneurs in digital skills for the Department of Information and Communications Technology. In 2018 I was a U.S. State Department Professional Fellow, posted to Chicago. In 2020 I managed an AI product at Senti AI.

Running teams had shown me the problems. Working on software showed me which of them a product could solve, and which ones still need a person to decide.

What I'm building now

Products and learning programs

In 2021 I founded Dasho in Singapore. Dasho is content approval software: it checks every draft against a brand's own rules before it publishes. Dasho went through AppWorks Accelerator in Taipei, was an e27 Echelon TOP100 startup in 2023, and joined IdeaSpace Foundation's Cohort 13 in 2025.

Through Third Team Ventures I built ThirdClaw, a managed AI assistant for small teams, and with a partner I built GeoLocally, fixed-price landing pages for local businesses in Florida. I also build learning experiences. My #AILiteracy advocacy grew into AI Literacy PH, a sourced reference to artificial intelligence in the Philippines, and gabAI, a hands-on AI program by AI Literacy PH whose first classes are planned for 2027.

What matters to me

Practical technology, and owning what you build

I care about technology people can use without a technical team or a big budget. I want to build things that keep working after I leave the room. And I still learn in public, which is why I write The Wicked and record Wicked Thoughts.

My marketing years are why I know what to build.