Kdb+/Q Engineer

Citadel Securities; Sydney; On-site; AUD 150,000 - 210,000; Full time

Job summary

Citadel Securities is seeking a Kdb+/Q Engineer to design and build high-performance data and analytics platforms for real-time and historical market data across global markets. You will work with traders, quantitative researchers, and engineers to deliver scalable, low-latency solutions.

The role focuses on Kdb+/Q at scale, collaborating with front-office stakeholders, and advancing the Global Trading Applications platform to support trading, data, and analytics workflows across the firm.

Qualifications

• Strong experience developing production applications using Kdb+/Q at scale.
• Experience building market data, analytics, electronic trading, or quantitative research platforms.
• Proficiency in programming languages such as Python, Java, or C++.
• Strong Linux and distributed systems knowledge.
• Ability to collaborate effectively with technical and front-office stakeholders.
• Bachelor's degree in Computer Science, Engineering, Mathematics, or related field.

Responsibilities

• Design and build high-performance Kdb+/Q platforms that support real-time research, streaming analytics, and trading workflows across global markets
• Partner directly with traders, quantitative researchers, and engineers to deliver technology that drives business outcomes
• Develop scalable solutions for large-scale market data, time-series analytics, and distributed computing challenges
• Contribute to the architecture and evolution of our Global Trading Applications platform, which supports trading, data, and analytics workflows across the firm
• Drive engineering excellence through thoughtful design, automation, and operational best practices

Skills

Kdb+/Q

Python

Java

C++

Linux

Distributed systems

Collaboration

Education

Bachelor's degree in Computer Science or related field

Tools

Linux

Job description

As a Kdb+/Q Engineer within our Global Trading Applications team, you will design and build data and analytics platforms that power trading and quantitative research across global markets. Working closely with traders, quantitative researchers, and engineers, you will develop high-performance solutions for real-time and historical market data at significant scale. This role offers the opportunity to work on a large-scale Kdb+/Q environment supporting critical

trading, research, and analytics workflows.

Responsibilities

• Design and build high-performance Kdb+/Q platforms that support real-time research, streaming analytics, and trading workflows across global markets
• Partner directly with traders, quantitative researchers, and engineers to deliver technology that drives business outcomes
• Develop scalable solutions for large-scale market data, time-series analytics, and distributed computing challenges
• Contribute to the architecture and evolution of our Global Trading Applications platform, which supports trading, data, and analytics workflows across the firm
• Drive engineering excellence through thoughtful design, automation, and operational best practices

Qualifications

• Strong experience developing production applications using Kdb+/Q at scale
• Experience building market data, analytics, electronic trading, or quantitative research platforms
• Proficiency in one or more programming languages such as Python, Java, or C++
• Strong Linux and distributed systems knowledge
• Ability to collaborate effectively with technical and front-office stakeholders
• Bachelor's degree in Computer Science, Engineering, Mathematics, or a related technical field

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.