Contact

Building a SaaS platform, scaling backend infrastructure, or exploring AI integration? Let's discuss how I can help architect and deliver your technical vision.

Contact Form

Contact Methods

Primary Email

contact@davidsd.dev

For project inquiries and professional opportunities

Secondary Email

work@davidsd.dev

For alternative correspondence

LinkedIn

in/davidsdev

Connect professionally

GitHub

github.com/davidcastilloc

View code and contributions

Availability

Architecture Consulting

Available for system design and technical strategy

Technical Collaborations

Open to engineering partnerships

Advisory Roles

Fractional CTO and technical leadership

How I Can Help

  • Backend Systems — API design, microservices, distributed architecture
  • Cloud Infrastructure — GCP, Cloudflare, AWS architecture and deployment
  • AI Integration — LLM systems, agents, vector search, automation
  • SaaS Architecture — Multi-tenant platforms, billing, auth, scaling strategy
  • Platform Engineering — CI/CD, monitoring, infrastructure as code