Omar Gutierrez, Profile.

Java 2...17

Profile:

I possess advanced expertise as a Java developer with a strong foundation in Java spanning versions 2 to 17. My technical knowledge encompasses various aspects of Java, including modern features such as lambda expressions and functional programming. Additionally, I have extensive experience in Java EE, particularly in the use of Enterprise JavaBeans (EJB), for building robust and scalable enterprise applications.


Technical Expertise:

Java Versions: I am proficient in Java versions 2 to 17, with a deep understanding of language enhancements and features introduced in each version. Lambda Expressions: I excel in using lambda expressions and functional interfaces in Java to write concise and expressive code, enabling functional programming paradigms. Functional Programming: I apply functional programming principles to solve complex problems efficiently, leveraging Java's functional features like streams, predicates, and collectors. Java EE (JEE): I have extensive experience with Java EE (formerly known as J2EE), particularly in developing enterprise-grade applications using JEE technologies. Enterprise JavaBeans (EJB): I am well-versed in designing and developing EJB components, including session beans, message-driven beans, and entity beans, for building distributed and scalable applications. Servlets and JSP: I have expertise in developing web applications using Servlets and JavaServer Pages (JSP), adhering to the Java EE standard for web development. JPA (Java Persistence API): I use JPA for ORM (Object-Relational Mapping), enabling seamless interaction with relational databases and efficient data management. RESTful Web Services: I design and implement RESTful APIs in Java, following best practices for resource modeling, versioning, and documentation. MVC (Model-View-Controller): I apply the MVC architectural pattern to build well-structured and maintainable Java EE web applications. Dependency Injection: I use dependency injection frameworks like CDI (Contexts and Dependency Injection) to manage and inject dependencies in Java EE applications. Containerization: I am experienced in containerizing Java EE applications using technologies like Docker for easy deployment and scaling. Application Servers: I deploy Java EE applications on popular application servers like WildFly, WebLogic, and Tomcat, ensuring optimal performance and resource management. Testing: I write comprehensive unit tests and integration tests for Java applications, ensuring code quality and reliability. With my extensive experience and expertise in Java, including modern features like lambda expressions and functional programming, along with proficiency in Java EE and EJB, I am well-equipped to design, develop, and maintain enterprise-level Java applications. I bring a developer-centric approach to Java development, delivering high-quality and scalable solutions for your projects.


Certification & Achievements :

RU102J: Redis for Java Developers

Issued by: Redis at 3/16/2023


Java 5 stars gold medal

Issued by: HackerRank at 2022


Problem Solving 2 stars bronze medal

Issued by: HackerRank at 2022


The most important all time, Mexican web app, falling flat :-(

Issued by: Publication, Medium at 3/21/2023




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