WRITING
Articles about engineering, AI, architecture, leadership, and product.
Read the blogjoacod - Joaquin Diaz
I lead teams, architecture, and delivery.Still hands-on, writing about what I learn.
Built software for Warner Bros. Discovery, Pluto TV, Indeed, Deloitte, Greenway Health, Aclara and fintech across Latam.
PROJECTS
Public tools and experiments, built for real work.
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I Built SelfContext So I Could Stop Re-explaining Myself to AI
SelfContext is my local, portable take on Karpathy's LLM wiki, pointed at personal context instead of research notes, so useful AI conversations can continue from files I own.
Read articleAI Gets More Useful When You Build the Workflow Around It
The biggest productivity gains from AI come from the context, skills, and workflows you build around it, because each useful project makes the next one easier.
A $10K Private AI Is Starting to Look Reasonable
Local inference is moving beyond offline chat. A MacBook demo shows how a model becomes a private OpenAI-compatible service, and why that architecture could scale to serious on-premise AI.
Selected projects
View all projectsTechnical direction without leaving delivery behind.
I work across architecture, planning, implementation, and delivery. The job is to help teams make clear decisions and ship software that holds up in production.
About me
Engineering lead with 15+ years building web products and backend systems across media, finance, healthcare, IoT, and utilities. I lead teams, technical direction, and delivery while staying hands-on with architecture and implementation. I am also part of DOMOS, TRIBU Tech Latam's network for technology leaders across Latin America.
Experience
Most recently, I have led frontend architecture and delivery for media platforms used by Pluto TV and Warner Bros. Discovery. The work includes microfrontends, identity and platform integrations, CI/CD, supporting Node.js and Go services, and a media-submission portal that caught file problems before upload. Earlier work includes products for Indeed, Greenway Health, Aclara, Deloitte, and credit bureaus across Latin America.
Skills
Team leadership, delivery planning, and software architecture are the core of my work. My current stack is mostly TypeScript, React, Node.js, Go, microfrontends, CI/CD, AWS, Docker, SQL, and AI-assisted development. I also have years of experience with Angular and C#. Browse my GitHub repositories.
Writing
I write stuff about software engineering, AI, architecture, leadership, and what happens when real teams have to ship real software. Read the blog.