I’m David Ruiz, a full-stack engineer with 7+ years shipping production software across fintech, lending, identity verification, and SaaS—usually bridging architecture to end-user experience. I enjoy modernizing legacy systems without disrupting live production, and I’ve built and evolved backend services in C#/.NET and Python, while also delivering responsive web experiences with React and Next.js. Lately, I’ve been shipping AI-enabled backend services and orchestration pipelines using models from Gemini, OpenAI, and Anthropic, focusing on prompt design, evaluation, and production-readiness in cloud environments. I’m comfortable across AWS and Azure, and I care about performance, security (including API auth and multi-tenant controls), and pragmatic delivery from CI/CD through to reliable product outcomes.…I’m David Ruiz, a full-stack engineer with 7+ years shipping production software across fintech, lending, identity verification, and SaaS—usually bridging architecture to end-user experience. I enjoy modernizing legacy systems without disrupting live production, and I’ve built and evolved backend services in C#/.NET and Python, while also delivering responsive web experiences with React and Next.js. Lately, I’ve been shipping AI-enabled backend services and orchestration pipelines using models from Gemini, OpenAI, and Anthropic, focusing on prompt design, evaluation, and production-readiness in cloud environments. I’m comfortable across AWS and Azure, and I care about performance, security (including API auth and multi-tenant controls), and pragmatic delivery from CI/CD through to reliable product outcomes.WWWW…