Johann Fernando Medina Paguay

I am writing to apply for the Senior Software Engineer / AI Engineer position. I am a software engineer with extensive experience delivering enterprise-grade backend systems and integrations, particularly in regulated environments such as banking and financial services. Across my career, I have led modernization efforts, improved service reliability, and delivered measurable performance gains by combining strong software engineering discipline with practical automation and data-driven approaches.

In recent roles, I have built and enhanced APIs and batch-processing solutions using Java and modern frameworks, integrating with legacy core systems and external services while maintaining high standards for stability and auditability. I have also contributed to modernization initiatives—refactoring legacy components, improving deployment workflows, and strengthening observability—to reduce operational risk and accelerate release cycles. This combination of systems thinking, clean architecture, and execution focus allows me to deliver solutions that are maintainable in the long term, not just functional in the short term.

In parallel, I have been strengthening my applied AI skill set through hands-on projects involving Python-based ML pipelines and API deployment (e.g., FastAPI, Docker). This helps me collaborate effectively across software and AI stakeholders and deliver production-ready services that incorporate data validation, monitoring, and robust interfaces. I am particularly interested in roles where I can contribute to building reliable systems end-to-end—design, implementation, testing, and operational ownership.

I would welcome the opportunity to discuss how my background in backend engineering, system integration, and practical AI implementation can support your team’s goals. Thank you for your time and consideration.