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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full Stack Software Engineer - **Company:** Citadel LLC - **Location:** United States - **Experience:** Experienced - **Salary:** $175,000.0 - $350,000.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Algorithmic Trading, C++ (Programming Language), Data Visualization, Distributed Systems, Interaction Design, Python (Programming Language), Rapid Prototyping Process, Service-Oriented Architecture, Software Engineering, Software Systems, TypeScript, Workflow Management Systems, ReactJS, Backend, Event Driven Architecture, Information Technology, Build Tools, Front End Software Development, Api Design - **Published:** July 17, 2026 - **Apply:** https://www.dice.com/job-detail/f404fa6c-710f-498c-801a-66757df9cccb ## About the Role * 3+ years of professional software engineering experience building complex applications. * Strong experience building full stack applications using modern frontend and backend technologies. * Proficiency with TypeScript and React * Experience designing scalable backend services using languages C++ or Python * Experience building distributed systems and service-oriented architectures. * Experience developing real-time, high-performance applications. * Strong understanding of API design, asynchronous systems, and event-driven architectures. * Passion for creating intuitive user experiences through thoughtful interaction design and rapid prototyping. * Strong analytical and problem-solving skills with the ability to solve open-ended technical challenges. * Excellent communication and collaboration skills. * Bachelor's or Master's degree in Computer Science or equivalent practical experience. Nice to Have * Experience working with trading systems, financial markets, or capital markets technology. * Knowledge of options, derivatives, OTC products, or market structure. * Experience building visualization tools for complex datasets. ## Description * Help define and build the next generation of high-touch pricing and trading workflow tools for Options traders. * Partner directly with traders, quantitative researchers, sales teams, and business leaders to design workflows that improve pricing, execution, and risk management. * Build full stack applications spanning modern web frontends, backend services, APIs, and distributed systems. * Develop intuitive, high-performance user interfaces that enable traders to research, monitor, price, and execute trades in real time. * Design scalable backend services that support pricing, workflow orchestration, market data, and trading operations. * Build systems to support markets and option instruments Citadel Securities has never traded before. * Gain exposure to multiple global markets while helping expand Citadel Securities' Options platform internationally. * Prototype new ideas quickly while evolving them into robust production systems. * Analyze complex business and technical problems and deliver elegant software solutions across the firm. * Continuously improve performance, scalability, stability, and usability of mission-critical trading applications. * Collaborate across engineering, quantitative research, and trading teams to translate complex financial concepts into intuitive software., * Define the next generation of high-touch pricing technology used by Options traders globally. * Work on a greenfield global OTC Options initiative with significant visibility across the business. * Build technology supporting Institutional Derivatives, PSG, and Structured Products trading desks. * Help launch entirely new products, markets, and trading capabilities. * Collaborate daily with world-class engineers, traders, and quantitative researchers. * Own projects that have immediate impact on global trading operations. In accordance with applicable law, the base salary range for this role is $175,000 to $350,000. In addition, the employee who fills this role will be eligible to participate in a discretionary incentive compensation program, as well as a wide array of benefit programs, such as medical and life insurance, retirement and tax-free savings plans, and access to other healthcare programs. 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