Senior Java Lead, Citi

Citi

Location:
United Kingdom, London

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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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 Lead Developer to modernize our core financial accounting systems. You will play a critical role in rewriting our legacy sub-ledger application 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.

Job Responsibility:

Develop application methodologies and standards for program analysis, design, coding, testing, debugging, and implementation
Analyze existing modules and shell scripts to 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 system
Troubleshoot and resolve technical issues during the migration process
Participate in code reviews and contribute to improving development processes
Allocate work, and act as an advisor/coach developers, analysts, and new team members
Influence and negotiate with senior leaders and communicate with external parties
Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency

Requirements:

Hands-on experience in Java & related technologies in developing robust, scalable, and maintainable applications applying Object Oriented Design principles
Experience managing a team of developers/software engineers
Experience working with SQL databases, including writing complex queries and optimizing database performance
Experience in a Unix/Linux environment
Experience with migrating legacy systems to modern architectures
Demonstrated leadership, project management, and development skills

Nice to have:

Experience with Sybase ASE, Sybase IQ, or MSSQL
Proficiency in shell scripting
Knowledge of financial accounting domain, including posting, calculation, and accounting processes

Additional Information:

Job Posted:
May 17, 2025

Employment Type:

Fulltime

Work Type:

Hybrid work

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Senior Java Lead