Adriel Castro

Full Stack Developer

I don't just build websites: I build systems, AI agents and automations that save you 10+ hours a week, so you can focus on what matters.

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about

Portrait of Adriel Castro

I'm a Computer Engineering graduate from Cabanatuan City, Nueva Ecija, Philippines. I love building websites and systems that people rely on every day.

With 7+ years of experience, I work across the whole stack: databases, APIs, infrastructure, and the interfaces people actually click through, including the UI/UX.

I also build with AI, from LLM-powered workflows and agents to chatbots connected to a team's own tools and data, so work that used to be done by hand runs on its own.

location: Cabanatuan City, PHexperience: 7+ yearsdegree: BS Computer Engineering

experience

AI & Automation Developer

  • Build AI workflows, agents and chatbots with LLM APIs (Claude, OpenAI).
  • Automate repetitive work with n8n, Zapier and Make, and connect tools through MCP.
  • Use AI coding assistants (Claude Code, Cursor, Copilot) to ship faster.

Full Stack Developer

  • Built and managed the APIs, database, infrastructure and UI/UX for a healthcare platform used by care facilities in the UK, Australia and New Zealand.
  • Set up cloud hosting (Azure / AWS) and CI/CD pipelines for reliable releases.

Web Developer

  • Built web applications with React, Node.js and Express.
  • Designed and optimized MySQL and PostgreSQL databases.
  • Integrated third-party APIs and payment gateways.

Junior Web Developer

  • Created and maintained websites with HTML, CSS, JavaScript and Bootstrap.
  • Built responsive, mobile-friendly pages.
  • Learned Git, PHP and database basics while shipping real client work.

skills

frontend & design

React, Next.js, TypeScript, Tailwind, Bootstrap, UI/UX design (Figma), responsive design

backend

Node.js, Express, PHP, Laravel, REST API design, GraphQL, WebSockets / real-time, authentication and security, payment gateways

databases

MongoDB, MySQL / MariaDB, PostgreSQL, Supabase, database design and optimization

infrastructure

Azure, AWS, Docker, Linux / server management, Git, GitHub

AI & automation

LLM APIs (Claude, OpenAI), AI agents, chatbots / assistants, prompt engineering, RAG / vector databases, MCP / tool integrations, workflow tools (n8n, Zapier, Make), AI coding assistants (Claude Code, Cursor, Copilot), CI/CD pipelines, third-party API integrations

practices

Automated testing, Agile / Scrum

also familiar with

Vue.js / Angular, Python, C# / .NET

projects

contact

Got a process that eats your week? Tell me about it and I'll show you what can be automated. Send me an email and I'll get back to you.

adrielcastrotech@gmail.com