Daniel Astudillo
Software Engineer
Featured Projects
Visa Card Eligibility Service
A real-time API service that enables financial institutions and merchants to determine card eligibility for exclusive benefits, offers, and promotions. Built with microservices architecture using .NET Core and Spring Boot, providing secure endpoints for card validation, eligibility checks, benefit redemption, and iFrame integration.
Visa Digital Benefits Platform
A comprehensive benefits orchestration platform that empowers card issuers to create and manage personalized cardholder rewards programs. Built with Spring Boot/Java 17, the system provides intelligent benefit allocation based on spending behavior, geographic location, and card tier eligibility. Features real-time benefit activation, flexible reward packages, and seamless integration with existing banking infrastructure.
About Me
I'm a Software Engineer with experience building systems that millions of people depend on. At Visa, I worked on critical financial services processing 20M+ monthly API requests, led legacy migrations that reduced technical debt by 10+ years, and architected modern payment platforms. At Wayfair, I revolutionized sales recommendation engines with 20% accuracy improvements and achieved 100% test coverage on mission-critical systems.
My expertise spans the full technology stack — from React, Next.js, and TypeScript frontends to Spring Boot, .NET Core, and Python backends.
I'm currently seeking opportunities to work on challenging problems that matter — whether that's building the next generation of financial technology, optimizing data pipelines that power millions of decisions, or creating intuitive experiences that people love to use. I thrive in environments that value innovation, technical excellence, and the kind of impact that changes how people interact with technology.Let's discuss how we can work together.