Rholdan is a skilled Java Developer with 14+ years of experience developing highly available and scalable web and standalone applications. He has good knowledge of systems engineering, design and analysis, and full-stack web development, always striving to increase productivity, marketability, and overall business value for his projects.
Create and develop innovative software solutions for different clients across a broad range of industries.
Participate in scrums consisting of cross-functional teams, both software and hardware.
Ensure that features are being delivered efficiently and on-time.
Developed Prepack API using Java, Spring core, Spring MVC and Spring Data - MongoDB. Analyzed requirements and designed, developed and implemented software applications for API consumers.
Collaborated in a team-based, Agile environment to accomplish objectives by deadlines. Analyzed flows, data usage, and work processes, and investigated problem areas for the previous system.
Reviewed code and debugged errors to improve performance. Designed and coded unit/integration testing for the API.
Worked on developing microservices for an oil company client portal, using Java (Spring Boot), Node.js (VanillaJS, Typescript).
Implemented a backend inbound processing of data stream, using Apache Kafka and Redis. Performed monitoring through Prometheus and Grafana.
Led the ETL's backend process using Java (Spring MVC, Data, Batch & Boot), S3, Lambda, Intellij, JUnit, Mockito, Rest API, Athena, Snowflake.
Managed the development of the Content Server tool by gathering the required information, database analysis, documentation, and creation processes.
Retrieved a large amount of client information from CS by creating web services using the CS API.
Identified and resolved any technical issues that arose.
Developed and maintained the CORE Fullfirmware’s applications to interconnect TIGO app with MovieCity app.
Resolved immediate and potential issues with applications.
Ensured that written code falls in line with project objectives.
Worked on creating fields in order to attach more than one experience credit file on CRM module, using PL/SQL, Toad, SQL Tools, Oracle.
Developed new functionalities on the CUR AvVillas app (Claim center), using Java, PL/SQL, Oracle, Eclipse, JasperReports.
Ensured that code is in compliance with specifications.
Led the web development of SIRI modules such as Acquisition, Constitution, Running, and others.
Gathered the relevant information to build uses cases and develop them.
Debugged and resolved any technical issues.
Acted as a Senior Java Engineer at DB System to develop the “People”, “Management Procedure” & “Use Cases” modules.
Developed several functionalities on PEI (Institutional Education Plan), PMI (Institutional Improvement Plan) and PAM (Support Improvement Plan) modules for the MEN (Ministry of National Education).
Created several modules for Hospital Meissen, including Promotion and Prevention, Billing, Treasury Chambers of Surgery, Outpatient, and Clinical History.
Avalon is a new open digitalization platform for autonomous, automated, and connected solutions.
It utilizes Java, Spring core, Spring MVC, and Spring Data for API development.
The project includes API consumer management, authentication via SSO with Keycloak, and running OAuth-proxy sidecars.
QuantCast Choice is a free and powerful consent management platform.
It's designed for digital publishers to comply with privacy regulations like ePrivacy Directive, GDPR, and CCPA.
The platform utilizes Java, Spring core, Spring MVC, and Spring Data - DynamoDb/Lambdas/ApiGateway/Athena/S3 on AWS.
Developed a Prepack API using Java, Spring Core, Spring MVC, and MongoDB.
Analyzed requirements, designed, developed, and implemented software applications for API consumers.
Collaborated in an Agile team to achieve objectives and meet deadlines.
