Derean Williamson

About Derean Williamson

Flexible programmer with a great understanding of OOP principles and concepts.• Ability to utilize databases to organize and power back-end applications.• Capable of creating fluid and responsive REST APIs.• Well versed with complete Software Development Life Cycle (SDLC) process, whichincludes Analysis, Designing, and Developing, Testing, Implementing and documentingthe entire life cycle using various methodologies like Waterfall, Agile and Test-Drivendevelopment.• Experience in working in environments using Agile (SCRUM), RUP and Test Driven(TDD) development methodologies.• Good working experience with Docker.• Diverse experience utilizing tools in N-tier and Microservices architecture applicationsusing Spring Boot and Spring Cloud config.• Expertise in J2EE Technologies: JSF, XML, EJB, JSP, Servlets, JMS, JNDI, JDBC, Java Script,Swings, Hibernate• Expertise in React JS, Angular 5/6 and 7 frameworks to develop the SPA.• Selecting the appropriate AWS service based on compute, data, or securityrequirements.• Experience in Integration of Amazon Web Services AWS with other applicationsinfrastructure.• Familiarity with JavaScript frameworks like React, Vue, Node JS and Angular 5 and 6.• Expertise in Agile Software Development Methodology including Scrum technology.

Experience

1. Java Developer

   Numerix

   Aug 2020 — Present · US

   Used Maven, Spring Boot, and Oracle SQL to create java applications. Maintained and improved on older, previously built API. Created functionality to split data between two existing databases based on specificcriteria. Added additional components to existing API. Restructured MongoDB code to work with the Oracle DB. Used REST Client and POSTMAN to test the rest-based services and used Junit andMockito to test the middleware services. Strong domain knowledge on Payment, Reporting, Resolution, Merchant life cycle,Payment domain for a Payment provider and Retirement Practice Good experience on managing Reporting infrastructure. Used JSP, HTML, CSS, JQuery, and Java Script for writing the UI of the application. Developed test cases for Unit Testing, Integration Testing with JUnit. Worked on Log4j for logging errors, messages and performance logs. Actively involved in the Devops streamlining process through Jenkins CI and CDRelease Automation. Used Hibernate, object/relational-mapping (ORM) solution, the technique of mappingdata representation from MVC model to Oracle Relational data model with a SQL-basedschema. Worked with Mocking while running the Junit test cases for batch processing. Experienced with parsing XML configuration

Education

• University of Central Florida

  Bachelor of Arts - BA

  2016 — 2020