Java Software Engineer

Job Description
Java Software Engineers build scalable, resilient systems that support every stage of Citadel's investment and business workflows. Our engineers work on complex applications and platforms spanning trading, data, risk management, funding, settlement, operations, and enterprise technology, where performance, reliability, and thoughtful system design are critical. They work across the full software development lifecycle, designing new systems, modernizing existing platforms, improving performance and reliability, and partnering directly with investment professionals and other stakeholders to solve challenging problems and drive commercial outcomes.
Key Responsibilities:

• Design, develop, test, deploy, and maintain high-quality Java applications, services, and platforms
• Build scalable, reliable, and high-performance systems supporting critical investment and business workflows
• Partner directly with users and engineering teams to understand complex requirements and develop effective technical solutions
• Design and improve distributed systems, APIs, data platforms, and event-driven architectures
• Develop green-field systems while also improving and modernizing existing technology
• Build systems designed to support future growth in data volumes, transaction volumes, and business complexity
• Improve application performance, reliability, scalability, and maintainability
• Contribute to system architecture, engineering standards, and technical strategy
• Own solutions throughout the software development lifecycle, from design and implementation through production
• Learn from industry leaders, distinguished engineers, and investment professionals

Qualifications:

• Minimum of a Bachelor's degree in Computer Science, or a related STEM discipline, or equivalent experience
• Expert-level Java programming skills and experience developing production-quality software
• Strong background in computer science fundamentals, data structures, algorithms, object-oriented design, and distributed systems
• Experience designing and building scalable applications, services, or platforms
• Comfortable with modern software development tools and practices, including testing, source control, build systems, and CI/CD
• Experience with SQL, relational or distributed databases, and data-intensive systems is a plus
• Experience with messaging technologies, event-driven systems, cloud infrastructure, or containerized environments is a plus
• Excellent analytical, problem-solving, communication, and teamwork skills
• Strong entrepreneurial spirit and the ability to adapt to changing requirements and technologies

Opportunities may be available from time to time in any location in which the business is based for suitable candidates. If you are interested in a career with Citadel, please share your details and we will contact you if there is a vacancy available.
To be eligible for UK postings, you must have or be able to obtain UK work authorization.
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In addition, the employee who fills this role will be eligible to participate in a discretionary incentive compensation program, as well as a wide array of benefit programs, such as medical and life insurance, retirement and tax-free savings plans, and access to other healthcare programs.
In accordance with applicable law, the base salary range for this role is $200,000 to $300,000.
In addition, the employee who fills this role will be eligible to participate in a discretionary incentive compensation program, as well as a wide array of benefit programs, such as medical and life insurance, retirement and tax-free savings plans, and access to other healthcare programs.
About Citadel
Citadel is one of the world's leading alternative investment managers. We manage capital on behalf of many of the world's preeminent private, public and nonprofit institutions. We seek the highest and best use of investor capital in order to deliver market leading results and contribute to broader economic growth. For over 30 years, Citadel has cultivated a culture of learning and collaboration among some of the most talented and accomplished investment professionals, researchers and engineers in the world. Our colleagues are empowered to test their ideas and develop commercial solutions that accelerate their growth and drive real impact.