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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