Diego I.

Diego I.- Senior Java Developer with 9 years of experience designing and implementing enterprise applications. Adept in full software development lifecycle (SDLC), from analysis and design to deployment and maintenance. Specialized in developing scalable microservices and REST APIs with Java and Spring Boot, while also experienced in monolithic architectures. Demonstrated ability to lead development teams, enhance code quality, and optimize system performance. PROFESSIONAL EXPERIENCE ​ Deloitte (Client: Marriott) Senior Java Developer, Jan 2024 – Present Technologies: Java 21, Spring Boot 3.4.4, Spring Framework, REST APIs, Microservices Activities and Responsibilities: ●​ Developed and maintained REST APIs for Property Portal, enabling internet access for hotel guests. ●​ Migrated services to JDK21 and Spring Boot 3.4.4, eliminating overdue security issues and extending system longevity. ●​ Led service refactoring for Web Check-In modules, enhancing interoperability with external systems. Infosys (Client: T. Rowe Price) Senior Java Developer, Feb 2021 – Dec 2023 Technologies: Java, Spring Boot, Spring Framework, JUnit, Mockito, SonarQube, Microservices Activities and Responsibilities: ●​ Delivered new REST APIs and features to meet client requirements using microservices architecture. ●​ Improved unit test coverage to over 85% across 20+ services, enhancing reliability and maintainability. ●​ Implemented Spring AOP-based logging solution for consistent API event tracking.​ UST Global (Client: Cotiviti) Senior Java Developer,Feb 2019 – Jan 2021​ - Technologies: Java 8, Spring Framework, JDBC Templates, JSF, JSP, Maven, Eclipse Activities and Responsibilities: ●​ Built new REST endpoints and optimized existing code using Java 8 features. ●​ Improved system response time by 30% through code refactoring. ●​ Maintained monolithic FWA application to address fraud, waste, and abuse cases.​ UST Global (Client: Equifax) Senior Java Developer, Jun 2018 – Jan 2019 Technologies: Java, Spring Boot, SOAP to REST API Migration, JUnit, Mockito, JMeter, VisualVM Activities and Responsibilities: ●​ Converted legacy SOAP services to RESTful APIs using microservice principles. ●​ Achieved 80%+ unit test coverage and conducted performance/load testing. ●​ Collaborated with international Agile teams through SCRUM ceremonies.​ Previous Roles ●​ Java Full Stack Developer, Castores Transportation | Oct 2017 – May 2018 ●​ Java Developer, Tesi – CitiBanamex | Jun 2016 – Sep 2017 ●​ Software Developer, Infoware – CitiBanamex | Jan 2016 – May 2016 EDUCATION ●​ Bachelor in Computer System Engineering – National Technological Institute of Mexico ●​ Scrum Fundamentals Certified (SFC) – SCRUMstudy ●​ Scrum Master Professional Certificate (SMPC) – CertiProf --