Senior Java Developer, VP

Citi; London; On-site; GBP 60,000 - 100,000; Full time

Job summary

An established industry player is seeking a Senior Java Developer to modernize core financial accounting systems. In this pivotal role, you will migrate existing C++ modules to a modern Java architecture, ensuring seamless functionality and performance. You will work closely with global technology and business teams, developing high-performance Java applications and collaborating on migration strategies. This position offers an exciting opportunity to be at the forefront of innovation in financial technology, driving success through engineering excellence. If you're passionate about coding and eager to lead impactful projects, this role is perfect for you.

Qualifications

• Hands-on experience in Java and related technologies for scalable applications.
• Experience with SQL databases, including complex queries and optimization.
• Experience in a Unix/Linux environment and system analysis.

Responsibilities

• Analyze existing C++ modules and design equivalent Java components.
• Develop high-performance, scalable Java applications to replace legacy code.
• Collaborate with teams to define migration strategy and ensure smooth transition.

Skills

Java

Object-Oriented Design

SQL

System Analysis

Project Management

Leadership

Unix/Linux

Shell Scripting

Education

Bachelor’s degree

Master’s degree

Tools

Sybase ASE

MS SQL

C++

Job description

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

Oasys Financial is a sub-ledger for Citi’s OTC business, covering global trading books across all asset classes. This system handles millions of trades daily and conducts all sub-ledger activities, which are 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 our London office, interfacing with global technology and business 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 and 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 in system analysis and programming of software applications.
• Experience 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.
• Clear and concise written and verbal communication skills.

Preferred Skills:

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

Education:

• Bachelor’s degree or equivalent experience; Master’s degree preferred.

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