• Designed and developed backend microservices for PayPal’s credit platform, supporting products such as Buy Now Pay Later and revolving credit. • Contributed to the design and implementation of a credit card product used by millions of users in the United States and the United Kingdom. • Played an active role across the entire software development lifecycle (SDLC): from system design and architecture, through implementation, QA, production release, and post-release monitoring. • Built and maintained services using Java, Spring Boot, REST APIs, and Oracle DB within a microservices architecture. • Maintained CI/CD pipelines with Jenkins and Maven, ensuring reliability and release consistency. • Participated in on-call rotations and production incident response, contributing to root cause analysis and continuous reliability improvements. • Conducted technical interviews as part of the recruitment process, helping hire engineers. • Performed code reviews and mentored junior engineers, guiding best practices and design decisions. • Collaborated with teams from different countries in a 100% English-speaking, remote environment. • Leveraged AI-assisted development tools (Claude Code) to improve feature delivery and enhance code quality across the team.

• Developed and maintained backend services for a remittance platform serving 250M+ users worldwide. • Built microservices in a distributed environment using Java, Spring Boot, REST APIs, and MySQL. • Delivered new features, including the Mexico Debit Card Deposit product, collaborating with product and QA teams. Guatemala • Increased platform reliability, achieving 99.99% content availability through cache performance optimization using Redis. • Participated in system design discussions and code reviews, ensuring code quality. • Supported team members by contributing to design discussions and architectural decisions. • Worked within Agile (Scrum) teams using tools such as Git, Maven, Docker, Redis, and NGINX.

• Developed backend services to integrate GPS devices and IoT accessories into the company’s web platform. • Designed and implemented IoT solutions for geolocation and telemetry, processing data from GPS devices. • Built backend systems using Java and Kotlin, focusing on correct data ingestion, processing, and persistence. • Collaborated with hardware and operations teams to ensure device communication. • Mentored other developers and promoted best practices, contributing to improved code quality.