Beware of scams impersonating Citadel Securities. We only communicate through our official accounts. For more information or to share information about fraudulent scams, click here. Regulatory Reporting Engineer London Job Description Role Overview: As a Regulatory Reporting Engineer, you will play a critical role in designing and building technology solutions that support global trade and transaction reporting obligations. Working at the intersection of engineering, data, and regulatory compliance, you will develop scalable systems and data pipelines that process large volumes of trading data and deliver accurate, timely regulatory reporting. You will partner closely with Engineering, Compliance, Operations, and business stakeholders to translate evolving regulatory requirements into robust technical solutions. This role offers the opportunity to solve complex data challenges, modernize reporting infrastructure, and help shape the future of regulatory technology through automation and advanced engineering practices. 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. Responsibilities: Design, develop, test, and deploy scalable regulatory reporting applications and data pipelines Build solutions that model complex front-to-back trading workflows and business processes Develop and maintain systems that support global trade and transaction reporting requirements Partner with Compliance, Operations, and business teams to translate regulatory obligations into technical implementations Investigate reporting exceptions, reconcile data discrepancies, and implement durable automated solutions Optimize data processing frameworks to improve reporting accuracy, scalability, and operational efficiency Support the full software development lifecycle, including production monitoring, troubleshooting, and continuous improvement Leverage modern data engineering technologies and AI-enabled workflows to enhance automation and control frameworks Qualifications: Bachelor's degree in Computer Science, Engineering, or a related technical field Strong professional experience developing software in Python Strong SQL and relational database expertise Solid understanding of software engineering principles, system design, and data architecture Experience building scalable data processing solutions and distributed systems Excellent analytical and problem-solving skills with the ability to work through complex, ambiguous challenges Strong communication and collaboration skills, with the ability to work effectively across technical and non-technical teams Preferred: Experience supporting regulatory reporting, transaction reporting, financial controls, or other highly regulated environments Knowledge of financial markets, trading systems, financial products, and trade lifecycles Experience with cloud platforms and modern data engineering technologies Exposure to AI-enabled workflows, intelligent automation, or machine learning applications Experience working with large-scale financial datasets About Citadel Securities Citadel Securities is a technology-driven, next-generation global market maker. We provide institutional and retail investors with world-class liquidity, competitive pricing and seamless front-to-back execution in a broad array of financial products. Our teams of engineers, traders and researchers harness leading-edge quantitative research and the accelerating power of compute, machine learning and AI to power our analytics and tackle the market’s and our clients’ most critical challenges. Together, we are forging the future of capital markets. For more information, visit citadelsecurities.com.