Senior Full-Stack Engineer

I am a backend engineer with 9+ years of experience building and improving complex systems. Throughout my career, I have focused on understanding messy codebases end to end, reducing technical debt, and introducing stronger engineering practices that make products more maintainable and scalable.

I am comfortable working across both backend and frontend when needed, and I have spent much of my career in .NET, ASP.NET Core, SQL Server, PostgreSQL, Redis, and Angular. I also have experience with Python, Flask, React, Hono, Supabase, Docker, and Cloudflare Workers, along with identity and SSO integrations such as Okta, Cognito, Google Identity, SAML, and OAuth.

In my recent roles, I have taken ownership of production systems, led architecture decisions, and delivered improvements that had measurable impact. I have reduced load times on data-heavy modules, introduced repository pattern and DDD-based structures, built testing strategies from scratch, and helped teams modernize legacy systems without disrupting operations.

I have also worked closely with domain experts to translate business workflows into reliable software behavior. In one role, I reverse-engineered undocumented SSO flows and created technical specifications that became the reference standard for the engineering team. In another, I co-founded a clinical workflow platform and owned technical decisions from stack selection through deployment strategy.

My background includes full-stack development for enterprise logistics tools, speech-to-text document generation platforms, aviation operations systems, and IoT-connected enterprise APIs. I have repeatedly been trusted to stabilize systems, improve code quality, and deliver maintainable solutions in remote and contract environments.

I am based in Guadalajara, Mexico, and I speak Spanish natively, English professionally, and Korean at a basic level. I am looking for opportunities where I can continue building robust backend and full-stack systems, modernizing legacy platforms, and contributing strong engineering leadership.