The role of Full stack /Senior J2EE Developer entails serving as a web application development expert, with key responsibilities including the development of web application infrastructure, reconciliation reports for the ISG legacy application, and enhancements to support product integration across various threads, such as equities, fixed income, listed derivatives, municipals, mortgages, and options. **Qualifications** **Required Skills:** + Bachelor's degree in Information Systems, Computer Science, or a related field. + **At least 12+ years of development experience with Core Java, including JDBC, Concurrency, Multi-Threading, REST API, Collections, I/O, Spring Boot, and Microservices.** + **Proficient in HTML, JavaScript, CSS, Angular, and Node.js.** + Experience using modern build tools for front-end solutions (npm, yarn, gulp etc.) + Exposure to test strategies and frameworks for UIs (jasmine, karma, selenium etc.) + Experience with shell scripting. + Familiarity with SQL databases, particularly Oracle and DB2. + Hands-on experience with application build and testing tools such as IDE, BitBucket, UDeploy, GitHub, Lightspeed, TeamCity, Jenkins, CI/CD pipelines, Autosys, SonarQube, CheckMarx, Maven, and Gradle. + Strong communication skills. + Knowledge of application servers like Apache and Tomcat. **Preferred Skills:** + Experience with ECS applications, including OpenShift, Docker, and RedHat. + Expertise in messaging services such as IBM MQ, Solace, Kafka, FIX, and RabbitMQ. + Familiarity with SFTP servers like Jscape. + Experience implementing MSPKI key and trust store certificates, as well as managing passwords. ------------------------------------------------------ **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._ Citi is an equal opportunity and affirmative action employer. Minority/Female/Veteran/Individuals with Disabilities/Sexual Orientation/Gender Identity.