We are seeking a highly skilled and experienced Senior Java Developer to join our dynamic team. The ideal candidate will have a strong background in developing robust, scalable, and high-performance applications using the Java technology stack. You will be responsible for designing, implementing, and maintaining our software applications, and working with a variety of technologies including Spring Boot, JPA, Hibernate, REST, Oracle, MongoDB, and Ignite Cache. ## Responsibilities - Design, develop, and maintain high-quality, reusable, and reliable Java code. - Build and maintain scalable applications using the Spring Boot framework. - Implement data persistence solutions using JPA, Hibernate, Oracle, and MongoDB. - Develop and consume RESTful APIs to support various client applications. - Utilize Ignite Cache for in-memory data caching to improve application performance. - Collaborate with cross-functional teams to define, design, and ship new features. - Participate in all phases of the development lifecycle, from concept to deployment. - Write well-designed, testable, and efficient code. - Ensure the best possible performance, quality, and responsiveness of the applications. - Identify and correct bottlenecks and fix bugs. - Help maintain code quality, organization, and automatization. - Participate in code reviews to ensure code quality and distribute knowledge. ## Qualifications - Bachelor's degree in Computer Science, Engineering, or a related field. - 5+ years of professional experience in Java development. - Extensive experience with the Spring Framework, particularly Spring Boot. - Strong experience with JPA and Hibernate for object-relational mapping. - Proficient in designing and building RESTful web services. - Hands-on experience with both relational and NoSQL databases, specifically Oracle and MongoDB. - Experience with in-memory data grids and caching technologies, preferably Ignite Cache. - Solid understanding of object-oriented programming principles. - Familiarity with build tools such as Maven or Gradle. - Experience with version control systems, such as Git. - Strong analytical and problem-solving skills. - Excellent communication and teamwork skills. - Ability to work independently and as part of a team in a fast-paced environment. This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. ------------------------------------------------------ ## Job Family Group: Technology ------------------------------------------------------ ## Job Family: Applications Development ------------------------------------------------------ ## Time Type: Full time ------------------------------------------------------ ## Most Relevant Skills Please see the requirements listed above. ------------------------------------------------------ ## Other Relevant Skills For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review [Accessibility at Citi](https://www.citigroup.com/citi/accessibility/application-accessibility.htm). View Citi’s [EEO Policy Statement](https://www.citigroup.com/global/eeo-aa-policy) and the [Know Your Rights](https://www.eeoc.gov/sites/default/files/2023-06/22-088_EEOC_KnowYourRights6.12ScreenRdr.pdf) poster.