Philippines-Based Remote Software Developer
Ryan Vince Castillo - Software Developer in the Philippines
Helping Businesses Worldwide Build Modern Web Applications
Building scalable enterprise and cloud software with of professional experience since 2018. Focused on AI-assisted engineering, LLM workflows, and Python MCP server development.
Cloud & DevOps
AI & LLM Engineering
Architecture
AI focus: MCP workflow orchestration
Creative Spotlight
GitHub Activity
LiveOpen-source work, experiments, and automation projects.
--Repos
--Stars
--Followers
AI Playground
Try a quick prompt preview. Full floating chat is coming next.
Agent output
I build scalable backend systems and pair AI assistants with practical engineering workflows.
Mini Snake
Score: 0About Ryan Vince Castillo
I am a software developer in the Philippines based in Davao City, working with local and international clients on web applications, backend systems, and cloud-enabled software. Since 2018, I have delivered solutions across enterprise operations, logistics, internal business tools, and client-facing web platforms. My work combines practical engineering execution with clear communication for remote teams.
My core stack includes .NET, ASP.NET, Node.js, NestJS, TypeScript, SQL Server, PostgreSQL, Azure, Docker, and modern frontend frameworks such as Next.js and Angular. I also build AI-assisted workflows and Python MCP servers to improve developer productivity, automation, and internal tooling. This allows me to help teams ship faster without sacrificing reliability, maintainability, or architecture quality.
As a remote developer from the Philippines, I support businesses that need a dependable freelance developer or long-term engineering partner for product development, system modernization, integrations, and performance improvements. I am comfortable working across time zones, collaborating asynchronously, and translating business requirements into production-ready software. If you need a Davao-based developer who can contribute to global projects, I can help from planning through delivery.
Services I Offer
Web Application Development
End-to-end web application development for internal tools, portals, and SaaS products. I build scalable systems with clear architecture, secure authentication, and maintainable codebases for growing teams.
Frontend Development (React / Next.js)
Responsive frontend interfaces focused on usability, performance, and clean component structure. I can build new React or Next.js experiences or improve existing UIs for faster delivery and better UX.
Backend API Development
API and service development using .NET, Node.js, and SQL/NoSQL databases. I design backend systems for integrations, business workflows, and data-heavy operations with reliability and observability in mind.
Website Performance Optimization
Performance and technical improvements for websites and web apps, including frontend optimization, asset loading strategy, and code cleanup that supports better user experience and SEO outcomes.
Technical Consulting & AI Workflow Integration
Engineering consulting for architecture planning, delivery processes, and AI-assisted development workflows. I help teams adopt practical automation and MCP-based tooling to improve productivity safely.
Looking for a dedicated hiring page? Visit Full Stack Developer in the Philippines.
Project Case Studies
Enterprise Applications and Backend Services
Problem: Teams needed secure and scalable internal systems for daily operations.
Solution: Built and maintained enterprise applications with .NET and Node.js services, authentication, and cloud deployment workflows.
Tech Used: .NET, Node.js, SQL Server, Azure, Docker
Results: Improved reliability, faster feature delivery, and better support for business-critical workflows.
Logistics and Tracking Tools
Problem: Manual tracking and fragmented tools slowed logistics monitoring and reporting.
Solution: Developed tracking applications and dashboards for monitoring container and freight operations.
Tech Used: C#, .NET, SQL Server, desktop and web tooling
Results: Better visibility into operations and improved efficiency for internal teams.
Client Websites and Conversion-Focused Builds
Problem: Small businesses needed fast, professional websites that were easy to maintain.
Solution: Delivered business websites using Wix and modern web platforms with SEO-aware structure and lead capture flows.
Tech Used: Wix, CMS tools, forms, analytics, on-page SEO
Results: Faster launch timelines and stronger online presence for service-based businesses.
Featured Work
Skills
Languages
C#, Visual Basic, TypeScript, JavaScript, Java, Go, Dart
Backend
.NET, ASP.NET, Node.js, NestJS, Go (Gin, gRPC), REST APIs, Microservices
Frontend
HTML5, CSS3, AngularJS, Angular, Next.js, Microfrontends
CMS & Site Builders
Wix, WordPress, Framer, Shopify, Webflow
Mobile
React Native, Flutter, .NET MAUI
Databases
MSSQL, PostgreSQL, MongoDB, Redis
BaaS & Integrations
Supabase, Firebase, SendGrid
Cloud & DevOps
Azure Storage, Docker, Kubernetes, CI/CD Pipelines
AI & LLM
Claude Code, Codex, Cursor, ChatGPT, LM Studio, Ollama, Local LLM Workflows, MCP Servers (Python)
Architecture
Clean Architecture, DDD, Event-Driven Architecture, CQRS
Developer Tools
GitHub, GitLab, Bitbucket, VS Code, Postman, Git
UI Libraries & Styling
Tailwind CSS, Bootstrap, Material UI
Professional Experience
Jairosoft Inc.
Leading development of enterprise applications focused on backend services (.NET, Node.js), cloud solutions (Azure, Docker), secure authentication, and SQL Server optimization.
Marsman Drysdale Agribusiness Group
Built a desktop application for container van monitoring and freight logistics to improve tracking efficiency and IT operations.
Freelance Web Developer
Delivered client websites using Wix, WordPress, and other web platforms.
Southwood Mindanao Corporation
Developed C# inventory and purchase order systems, upgraded POS payments, and migrated legacy accounting and payroll apps from VB6 to C# .NET.
Contact
- Email: ryanvincecastillo@gmail.com
- Phone: +63-951-401-4096
- Location: Davao City, Philippines
- GitHub: https://github.com/ryanvincecastillo
- LinkedIn: https://www.linkedin.com/in/ryan-vince-castillo-67690b20a/
Education
University of Southeastern Philippines
Bachelor of Science in Information Technology · 2014 - 2018