Job Description

At Citi, we believe in power of engineering to drive success and nurture culture where innovation, collaboration and professional growth thrive.


Oasys Financial is a sub-ledger for Citi's OTC business and covers global trading books across all asset classes. This system handles millions of trades daily and conduct all sub-ledger activities, which is critical for the bank.


We are seeking a highly experienced Senior Java Developer to modernize our core financial accounting systems. You will play a critical role in migrating existing C++ modules and shell scripts to a modern Java-based architecture. This involves analyzing existing code, designing equivalent Java components, and ensuring a seamless transition while maintaining system functionality and performance.


This role is based at London office interfacing with global technology & business aligned teams.

Responsibilities:

Analyze existing C++ modules and shell scripts and design equivalent Java components Develop and implement high-performance, scalable, and secure Java applications to replace legacy code Write clean, well-documented, and testable Java code Collaborate with architects and other developers to define the migration strategy and ensure a smooth transition Work with relational databases, primarily Sybase ASE and MS SQL, to adapt existing database schemas and queries to the new Java architecture Thoroughly test and validate the migrated Java code to ensure functional equivalence with the legacy C++ system Troubleshoot and resolve technical issues during the migration process Participate in code reviews and contribute to improving development processes

Qualifications:

Hands-on experience in Java & related technologies in developing robust, scalable, and maintainable applications applying Object Oriented Design principles. Experience working with SQL databases, including writing complex queries and optimizing database performance Experience in a Unix/Linux environment Extensive experience system analysis and in programming of software applications Experience in managing and implementing successful projects Subject Matter Expert (SME) in at least one area of Applications Development Ability to adjust priorities quickly as circumstances dictate Demonstrated leadership and project management skills Consistently demonstrates clear and concise written and verbal communication

Preferred Skills:

Experience with Sybase ASE, Sybase IQ, or MSSQL Proficiency in shell scripting Knowledge of financial accounting domain, including posting, calculation, and accounting processes Experience with migrating legacy systems to modern architectures Experience with C++

Education:

Bachelor's degree/University degree or equivalent experience Master's degree preferred


This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.


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Job Family Group:

Technology
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Job Family:

Applications Development
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Time Type:

Full time
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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.

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