Senior Python Software Engineer

Overview

Citadel Securities is a leading global market maker across a broad array of fixed income and equity securities. Our world‑class capabilities position us to meet the liquidity demands of our diverse group of institutional clients in all market conditions. In partnering with us, our clients, including asset managers, banks, broker‑dealers, hedge funds, government agencies and public pension programs are able to gain a powerful trading advantage and are better positioned to meet their investment goals.

In our mission to be the most successful investment team in the world, we hire the brightest minds in technology, research, and finance to create innovative solutions that impact the financial markets and take data analysis to new levels. Software Engineers create next‑generation software solutions to support business areas across the firm. Software Engineers work closely with business leaders to develop and deliver custom software solutions that optimize performance and efficiency.

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 elegant software solutions across the firm
• Partner with business leaders to define priorities and deliver custom technology solutions
• Analyze complex business and technical problems
• Make sound decisions proactively and in a self‑directed manner
• Provide timely systems support for trading activities

Skills and Qualifications

• A deep passion for technology and software development
• In‑depth experience working in Python
• The ambition to solve open‑ended problems using analytical methods
• Knowledge of Linux systems
• Strong scripting experience with an ability to integrate various components and systems (in‑house and third party)
• Professional experience working with distributed systems
• Knowledge of SDLC methodologies
• Strong communication and interpersonal skills applicable to a dynamic trading environment
• Minimum Bachelor’s degree in Computer Science or related field

Preferred Qualifications

• Experience with proprietary trading and market making
• Experience with ML techniques and statistical methods
• Experience with C++, kdb, and SQL

Compensation and Benefits

• Base salary range: $125,000 to $350,000 (in accordance with applicable law)
• Eligibility to participate in a discretionary incentive compensation program
• Access to a wide array of benefit programs, including medical and life insurance, retirement and tax‑free savings plans, and other healthcare programs.