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Senior Options Software Engineer

Citadel Securities
🇺🇸New York🇺🇸Miami🇬🇧London🇦🇺SydneySeniorFull-time$175k–$325kPosted September 22, 2026

About the Role

Join Citadel Securities' options market making team, tackling the unique challenge of combining scale with business complexity. With over a million listed options at the heart of billions of messages, the team handles internet-scale datasets while being constrained on hardware due to latency requirements necessitating exchange co-location, forcing innovation in algorithms and business.

  • Build, maintain and support one of the world's most powerful trading platforms while continuously improving performance, functionality and stability of the system
  • Design, develop, test, and deploy elegant software solutions across the firm
  • Partner with business leaders to define priorities and deliver custom solutions
  • Analyze complex business and technical problems
  • Make sound decisions proactively and in a self-directed manner
  • Provide timely systems support for trading activities

Responsibilities

  • Build, maintain and support one of the world's most powerful trading platforms while continuously improving performance, functionality and stability of the system
  • Design, develop, test, and deploy elegant software solutions across the firm
  • Partner with business leaders to define priorities and deliver custom solutions
  • Analyze complex business and technical problems
  • Make sound decisions proactively and in a self-directed manner
  • Provide timely systems support for trading activities

Requirements

  • 5+ years of working experience
  • Experience working in C++
  • Experience working with distributed systems
  • Sound understanding of multi-threaded application design and development
  • Passion for technology and software development
  • Ambition to solve open-ended problems using analytical methods
  • Ability to work independently and prioritize high-impact projects
  • Strong communication and interpersonal skills applicable to a dynamic trading environment
  • Bachelor's degree (or equivalent experience) in Computer Science or related field

What You'll Get

  • $175k–$325k base salary
  • Medical and life insurance
  • Retirement and tax-free savings plans
  • Access to other healthcare programs
  • Discretionary incentive compensation program