We are looking for a Senior Java Developer / Technical Lead (C13 level) to design, build, and maintain high-volume data and trade reporting applications in the Capital Markets regulatory space. You will lead technical design, write clean code, tune query performance, and guide junior developers. Key Responsibilities • Design & Coding: Build and enhance scalable, robust backend services using Core Java, Spring Boot, and microservices for regulatory transaction reporting. • Data Integration & Mapping: Ingest, parse, and process high-volume trade data from upstream trading systems using JSON, XML/FpML, and REST APIs. • Performance Tuning: Troubleshoot and optimize SQL queries, Oracle databases, and Hive/Big Data pipelines to meet strict regulatory SLAs. • Data Quality & Reconciliation: Develop automated data reconciliation, validation checks, and error-handling routines. • AI & Modernization: Leverage AI/GenAI tools (prompt engineering, RAG, automated workflows) to streamline data mapping and analysis. • Team Leadership: Conduct code reviews, set coding and testing standards, mentor junior/mid-level engineers, and allocate tasks. • Stakeholder Coordination: Partner with business analysts, architecture, and compliance teams to translate regulatory rules into technical specifications. Required Skills & Experience • 10–14+ years of hands-on experience in Java software development and data platforms. • Strong Core Java & Spring Boot: Multithreading, collections, concurrency, microservices, and RESTful APIs. • Advanced SQL & Database Tuning: Deep experience with Oracle and Hive; strong ability to read execution plans and tune slow queries. • Data Formats: Hands-on experience parsing and transforming JSON, XML, and complex nested data structures. • Data Quality & ETL: Experience with data mapping, warehousing concepts, ETL pipelines, and reconciliation frameworks. • Tooling: GitHub, JIRA, Confluence, CI/CD pipelines (Jenkins/Tekton). • Education: Bachelor’s or Master’s degree in Computer Science, IT, or related field. Good to Have / Preferred • Direct experience with Capital Markets regulatory reporting regimes (e.g., MiFID II, EMIR, SFTR, CFTC Re-write). • Familiarity with messaging systems (Kafka / MQ). • Working knowledge or interest in AI/GenAI (LLMs, RAG, Prompt Engineering). • Exposure to Python, Snowflake, Databricks, or Cloud platforms. ------------------------------------------------------ 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. View Citi’s EEO Policy Statement and the Know Your Rights poster.