AI Product Engineer & Full-Stack Developer
Building AI, web, and mobile systems for product teams.
I’m Diomari Madulara, a senior full-stack engineer with 10+ years of experience shipping React, Next.js, TypeScript, Cloudflare, and mobile products.
Featured works
Projects
JigSpot
An offline-first fishing app with bathymetric maps, GPS trip tracking, and spot-sharing for offshore anglers.
Network-optional core loop with maps, GPS trip tracking, and serverless APIs.
Gorgi - Site Widget Assistant
A one-line-to-embed AI support widget that answers from a website's own content.
One-line Shadow DOM widget with grounded retrieval and quota gates.
Open-source tools
Flare Control
A Cloudflare-native platform for orchestrating AI agents with human-in-the-loop controls.
Queue-driven agent runtime with durable human approval workflows.
Brief Context
A lightweight handoff tool that gives AI coding agents a shared, refreshable project context before they edit a repository.
Published package that writes safe PROJECT_CONTEXT.md handoffs for AI agents.
Edge Form
A self-hostable Cloudflare Workers contact form backend with D1 persistence, spam checks, delivery adapters, and CSV export.
Durable D1 submission archive with spam checks, delivery adapters, and CSV export.
Recent writing
All articles-
Lessons from building a coding agent package
What building Brief Context taught me about safe project scanning, adapter design, and giving AI coding agents better handoff context.
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How I added free article narration with Piper, then moved to Kokoro for quality
A practical look at adding local, free audio narration to a static Astro site, what worked with Piper, and why Kokoro became the better quality option.
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Resist the temptation to prompt
A reminder for AI-assisted development: before asking the model for code, slow down long enough to understand the problem, boundary, and next smallest useful step.
How I can help
- 01
Senior engineering roles
I’m open to senior frontend, full-stack, and AI product engineering roles where product judgment matters as much as code quality.
- 02
AI product & full-stack consulting
I help teams scope, architect, and ship web, mobile, Cloudflare, and AI-powered product work from planning to production.
- 03
Speaking & workshops
I speak about AI-assisted development, software engineering best practices and the habits behind shipping useful software.
Tech stack
- Frontend
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- React
- Next.js
- Astro
- TanStack
- TypeScript
- JavaScript (ES6+)
- Tailwind CSS
- HTML5/CSS3
- Zustand/Context API
- Mobile
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- React Native
- Expo
- Kotlin
- Kotlin Multiplatform
- Backend, DB & APIs
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- Node.js
- HonoJS
- Drizzle ORM
- GraphQL
- REST
- PostgreSQL
- SQLite
- Python/Django
- Pandas
- AI Inference
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- OpenAI
- Anthropic
- OpenRouter
- Cloudflare AI Gateway
- Infra
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- AWS
- Cloudflare
- Supabase
- Workflow
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- Codex
- Pi Agent
- Git
- Github Actions
- Wrangler