Jairosoft Inc.
Enterprise applications, backend services, cloud solutions, secure auth.
// about me
Ryan Vince Castillo
I'm a software developer with of experience building enterprise applications, backend services, and cloud systems. Based in Davao City, I work remotely with local and international clients to deliver reliable, scalable solutions.
My day-to-day spans full-stack development — from .NET and Node.js APIs to React and Next.js frontends — with a growing focus on AI-assisted engineering workflows using tools like Claude Code and MCP servers.
Outside of client work, I ship my own products. InaanApp is my latest — a relationship memory app built with Flutter and Supabase, designed for Filipino families to organize their ninong, ninang, and inaanak connections.
Cloud & DevOps
AI & LLM
Architecture
Backend
Full Stack
Remote
InaanApp
Relationship memory app for Filipino families — track ninong, ninang, and inaanak connections.
// skills
Languages
C#, TypeScript, JavaScript, Java, Go, Dart
Backend
.NET, ASP.NET, Node.js, NestJS, Go, REST, Microservices
Frontend
React, Next.js, Angular, HTML5, CSS3
Mobile
React Native, Flutter, .NET MAUI
Databases
SQL Server, PostgreSQL, MongoDB, Redis
Cloud & DevOps
Azure, Docker, Kubernetes, CI/CD
AI & LLM
Claude Code, Cursor, ChatGPT, Ollama, MCP Servers
Architecture
Clean Architecture, DDD, Event-Driven, CQRS
// experience
Marsman Drysdale Agribusiness
Desktop apps for container monitoring and freight logistics.
Freelance Web Developer
Client websites using Wix, WordPress, and web platforms.
Southwood Mindanao Corp.
Inventory systems, POS payments, VB6 to C# .NET migrations.
// education
University of Southeastern Philippines
BS Information Technology · 2014 - 2018
// contact
- Email ryanvincecastillo@gmail.com
- Phone +63-951-401-4096
- Location Davao City, Philippines
- GitHub github.com/ryanvincecastillo
- LinkedIn linkedin.com/in/ryan-vince-castillo