Kdb+/Q Engineer

About the Role

Join our Global Trading Applications team as a Kdb+/Q Engineer, where you will architect and implement data and analytics platforms that empower trading and quantitative research on a global scale. You will collaborate closely with traders, quantitative researchers, and fellow engineers to craft high-performance solutions dealing with both real-time and historical market data at a significant scale. This role involves working within an extensive Kdb+/Q environment that supports critical workflows in trading, research, and analytics.

Key Responsibilities

• Architect and develop highly efficient Kdb+/Q platforms supporting real-time research, streaming analytics, and trading activities across multiple global markets
• Engage directly with traders, quantitative researchers, and engineering colleagues to deliver technology solutions aligned with business goals
• Create scalable systems that manage large volumes of market data, enable time-series analysis, and address challenges in distributed computing
• Contribute to the design and ongoing advancement of the Global Trading Applications platform that underpins trading, data processing, and analytics workflows across the company
• Promote engineering excellence through well-thought-out design principles, automation, and adherence to operational best practices

Qualifications

• Demonstrated experience with developing production-grade applications using Kdb+/Q in large-scale environments
• Background in building platforms for market data, analytics, electronic trading, or quantitative research purposes
• Proficiency in one or more programming languages including Python, Java, or C++
• Strong understanding of Linux operating systems and distributed system architectures
• Excellent collaboration skills to work effectively with both technical teams and front-office personnel
• A bachelor's degree in Computer Science, Engineering, Mathematics, or a related technical discipline

Additional Information

Positions may be available periodically in any of our global office locations, which include New York, Dublin, Hong Kong, London, Singapore, and Sydney. Candidates interested in joining Citadel Securities can submit their information for consideration when vacancies arise.

About Citadel Securities

Citadel Securities is a technology-focused global market maker delivering institutional and retail investors with superior liquidity, competitive pricing, and seamless execution across a vast range of financial products. Our team uses state-of-the-art quantitative research, machine learning, and AI to address the most critical market challenges of our clients and drive the future of capital markets.