Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.
At Citi, we believe in the power of engineering to drive success and foster a culture where innovation, collaboration, and professional growth thrive.
Join Citi's Oasys Financial team as a Senior Java Developer and take a pivotal role in a landmark modernization project. Oasys is Citi’s core sub-ledger system for theOver-the-Counter(OTC) business, processing millions of trades daily. We are embarking on a major strategic initiative to transform this key platform, moving it from a legacy system built on shell scripts intoa state-of-the-artarchitecture based on modern Java microservices.
We areseekinga highly skilled and motivated technical leader to drive the design, development, and delivery of our next-generation financial accounting systems, ensuring they meet the highest standards of scalability, performance, and security.
As a Senior Developer, you will be a technical leader at the heart of this transformation. Your duties will include:
Re-Architect and Modernize: Lead the re-architecture of our legacy financial ledger, migrating complex business logic from shell scripts and stored procedures into a modern, event-driven platform built on Java microservices.
Hands-On Development: Design, develop, and implement high-performance, scalable, and secure Java applications that will form the new backbone of our financial systems.
Champion Code Quality: Write clean, well-documented, and thoroughly testable Java code. Act as a champion for software engineering best practices, including Object-Oriented Design, SOLID principles, and Test-Driven Development (TDD).
Problem Solving: Act as a key technical expert, troubleshooting and resolving complex issues that arise during system migration, modernization,and inproduction.
Cross-Functional Collaboration: Work in close partnership with product managers, business analysts, and other global teams to ensure technical solutions are perfectly aligned with evolving business requirements.
Technical Depth: Strongexpertisein Object-Oriented Design, data structures, design patterns, and concurrency.
Preferred (Highly Desirable):
Legacy Modernization: Proven experience in migrating complex, large-scale legacy systems (particularly those heavily reliant on shell scripting and monolithic databases) to modern, cloud-nativemicroservicesarchitectures.
Modern Technologies: Deep familiarity with modern Java frameworks (e.g., Spring Boot),microservicesarchitecture, and containerization platforms (e.g., Docker, OpenShift).
AI-Assisted Development: Experience using AI-powered development tools (e.g., GitHub Copilot, Claude, Devin) to accelerate development and improve code quality.
Domain Knowledge: A solid understanding of the financial accounting domain, including concepts like posting, calculations, and sub-ledger processes.
-
Technology
-
Applications Development
-
Full time
-
Please see the requirements listed above.
-
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.
