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Hello, I'm Troi

Open for new projects

Building dependable backend systems for modern products.

I'm Daryl Troi Del Castillo, a software engineer based in the Philippines focused on API design, databases, and cloud infrastructure.

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Download CV | Backend-first, full-stack aware
  • API Design
  • Database Performance
  • Cloud + DevOps
  • Automation
Tech stack logos: Python, Node.js, FastAPI, React, PostgreSQL, MySQL, AWS, Git, Vercel, Squarespace, Wix, Shopify, WordPress.
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Daryl Troi Del Castillo

Software Engineer

Philippines Backend, APIs, Data
Focus Backend systems and APIs
Collab Frontend and UX teams
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About

Backend-first builder, full-stack aware.

I design reliable backend systems that keep products fast, stable, and easy to evolve.

I'm a software engineer focused on backend development. I build and maintain scalable APIs, manage databases, and implement the logic that powers web applications.

I've worked on enterprise-level systems, making sure they run smoothly, perform well, and stay reliable. While I have experience across the full stack, my main strength is backend engineering. I often work alongside frontend and UI/UX developers to bring complete features to life.

I also take freelance projects in social media management (SMM), helping brands with content planning, scheduling, and community support.

Focus areas

  • Backend architecture
  • API integration
  • Database performance
  • Cloud services
  • Automation

Soft skills

  • Highly knowledgeable
  • Time management
  • Good interpersonal communication
  • Collaborative
  • Problem solver

Freelance work

  • Social media management (SMM)
  • Content scheduling
  • Client support

Experience

  • AMDOCS PHILIPPINES INC. Software Engineer
  • ALTITUDE DIGITAL Encoder / Graphic Designer (Intern)
  • Freelancing Web Development, Social Media Management (SMM)

Certificates / Awards

Tech Stack

  • Languages + Frameworks Python, JavaScript (ES6+), Node.js, FastAPI, React, C#, .NET, Java, PHP, Ruby (Rails)
  • Databases PostgreSQL, Firebase, MySQL, SQL Server, Oracle
  • Cloud + DevOps EC2, S3, IAM, Lambda, RDS, CloudWatch, Serverless Functions
  • Tooling + Deployment Git (GitHub, GitLab), Netlify, Vercel, Render
  • CMS + Site Builders Squarespace, Wix, Shopify, WordPress
  • Automation Windows PowerShell, Bash
  • Productivity + CRM VS Code, Postman, Microsoft Office, Slack, Trello, GoHighLevel

Selected Works

Projects shipped with focus and polish.

A snapshot of recent web builds and responsiveness work. More projects available on request.