Oscar Miranda

I’m a Full-Stack Developer and AI Engineer with 3+ years building autonomous agent systems, LLM-powered applications, and production mobile and web products. I’ve shipped 4 apps to the App Store and TestFlight with real users across fitness, nutrition, and wellness verticals.

At Ultramare, I founded and scaled a boutique AI and web development agency, formalized under the Ultramare brand after 3 years of independent client work. I architected autonomous agent pipelines using Model Context Protocol (MCP), enabling complex multi-step AI workflows with structured outputs and reducing manual orchestration effort by ~60%.

I build production-grade LLM experiences end-to-end—integrating OpenAI, Gemini, and Claude APIs into REST APIs and real-time product features. Through prompt caching and structured generation, I reduced average LLM response latency by ~35%, while delivering React analytics dashboards connected to live Firebase streams for sub-second visualization.

I’m also comfortable operating across the stack and shipping reliably, deploying serverless architectures on GCP with automated CI/CD pipelines and full secret management. Before this, I led operations and compliance as a General Manager in Venezuela and produced photo-realistic VFX, which sharpened my attention to quality, iteration speed, and reusable workflow thinking.