Citadel Executive and Leadership Team

October, 2026

Leadership Overview

Citadel has 10 executives leading key functions including strategy, technology, operations, platform engineering, quantitative research, commodities, hedging, fixed income, workplace management, and credit.

Focused on delivering comprehensive IT solutions, Citadel maintains a commitment to innovation and integrity while providing 24/7 support across the entire spectrum of technical services.

Leadership Roles at Citadel

  • Office of the Founder and Chief Executive Officer - Misha Stange
  • Chief Operating Officer, Operations - Jason Sefferino
  • Chief Operating Officer, Platform Engineering (Ai, Databases, China) - Janna Shaftan
  • Chief Operating Officer, Equities Quantitative Research - Federico Weis
  • Chief Operating Officer, Commodities Team - Johanna Webb
  • Chief Operating Officer - EQR Alpha and Hedging - Hugh Lindsey
  • Chief Operating Officer, Global Fixed Income - John Niccolai
  • Workplace Chief Operating Officer - Michael Krupa
  • Global Chief Operating Officer, Credit - Benjamin Rauh
  • Chief Technology Officer - Stephen Youtzy
  • Misha Stange - Office of the Founder and Chief Executive Officer

    Misha Stange, the Office of the Founder and Chief Executive Officer at Citadel, directs the overarching strategic vision and long-term growth initiatives. By aligning internal IT service capabilities with evolving market demands, the Chief Executive Officer ensures that the organization maintains a competitive edge in the technology consulting landscape. Misha Stange oversees high-level corporate governance and fosters a culture of innovation that permeates every department. This leadership role involves constant collaboration with the Board to refine the organizational roadmap and expand the firm's footprint across North American markets. Through rigorous oversight of operational efficiency, the Chief Executive Officer drives the integration of integrity into every client engagement. Ultimately, the executive secures the firm's reputation as a premier provider of comprehensive IT solutions by prioritizing sustainable development and client-centric service delivery models.

    Jason Sefferino - Chief Operating Officer, Operations

    Jason Sefferino, the Chief Operating Officer, Operations at Citadel, manages the daily execution of business processes and internal service delivery workflows. By streamlining operational procedures, the Chief Operating Officer, Operations ensures that the firm meets its 24/7 support commitments with maximum efficiency. Jason Sefferino oversees the coordination between various departments to maintain the integrity of the organizational roadmap. This leadership position involves monitoring performance metrics to identify areas for process improvement and resource allocation. By fostering a collaborative environment, the Chief Operating Officer, Operations supports the seamless integration of IT services across all client projects. Through the optimization of internal systems, the executive drives operational excellence and ensures that the company remains agile in a fast-paced technology consulting market, ultimately supporting the firm's broader mission of delivering reliable and innovative IT solutions.
    Jason Sefferino

    Janna Shaftan - Chief Operating Officer, Platform Engineering (Ai, Databases, China)

    Janna Shaftan, the Chief Operating Officer, Platform Engineering (Ai, Databases, China) at Citadel, directs the development and maintenance of critical data platforms and artificial intelligence initiatives. By overseeing engineering teams focused on database architecture, the Chief Operating Officer, Platform Engineering (Ai, Databases, China) ensures that the firm's technical foundation supports high-performance computing requirements. Janna Shaftan manages the expansion of platform capabilities within the Asian market, driving growth through localized technical strategies. This role involves close collaboration with other C-suite leaders to integrate AI-driven insights into the broader IT service portfolio. By prioritizing the stability and scalability of core platforms, the executive ensures that the company delivers robust solutions to global clients. Through the strategic management of engineering resources, the executive maintains the firm's reputation for technical precision and innovative service delivery.
    Janna Shaftan

    Federico Weis - Chief Operating Officer, Equities Quantitative Research

    Federico Weis, the Chief Operating Officer, Equities Quantitative Research at Citadel, leads the operational framework supporting complex quantitative analysis and research activities. By managing the infrastructure required for high-frequency data processing, the Chief Operating Officer, Equities Quantitative Research ensures that research teams possess the tools necessary for accurate market modeling. Federico Weis oversees the integration of quantitative methodologies into the firm's broader IT service offerings, enhancing the value provided to clients. This role involves coordinating with technical departments to ensure that research platforms remain secure and efficient. By driving the adoption of advanced analytical tools, the executive supports the firm's commitment to innovation and data-driven decision-making. Through the strategic oversight of quantitative operations, the executive ensures that the company maintains a significant competitive advantage in the financial technology sector while upholding the highest standards of integrity.

    Johanna Webb - Chief Operating Officer, Commodities Team

    Johanna Webb, the Chief Operating Officer, Commodities Team at Citadel, directs the operational strategy for the commodities division, ensuring that technical support aligns with market-specific requirements. By managing the workflows associated with commodity trading systems, the Chief Operating Officer, Commodities Team ensures that the firm provides reliable and timely IT services to this specialized sector. Johanna Webb oversees the implementation of robust data management practices that support the unique needs of commodity-focused clients. This role involves collaborating with cross-functional teams to optimize system performance and ensure 24/7 availability. By driving operational efficiency within the commodities vertical, the executive enhances the firm's ability to deliver tailored IT solutions. Through the strategic management of resources and processes, the executive ensures that the company remains a trusted partner for clients operating in complex and volatile commodity markets.

    Hugh Lindsey - Chief Operating Officer - EQR Alpha and Hedging

    Hugh Lindsey, the Chief Operating Officer - EQR Alpha and Hedging at Citadel, manages the operational infrastructure supporting alpha generation and hedging strategies. By overseeing the technical systems that facilitate complex financial modeling, the Chief Operating Officer - EQR Alpha and Hedging ensures that the firm's IT services provide the necessary precision for risk management. Hugh Lindsey directs the integration of advanced hedging tools into the company's service portfolio, enabling clients to navigate market fluctuations effectively. This role involves coordinating with quantitative and engineering teams to maintain system integrity and performance. By driving the development of specialized operational workflows, the executive supports the firm's mission of delivering innovative and reliable technology solutions. Through the strategic oversight of these critical functions, the executive ensures that the company maintains its position as a leader in providing high-performance IT services for sophisticated financial operations.

    John Niccolai - Chief Operating Officer, Global Fixed Income

    John Niccolai, the Chief Operating Officer, Global Fixed Income at Citadel, leads the operational initiatives for the fixed income division, focusing on the scalability of IT support systems. By managing the technical requirements for global fixed income operations, the Chief Operating Officer, Global Fixed Income ensures that the firm delivers consistent and high-quality service across international markets. John Niccolai oversees the implementation of data-driven strategies that enhance the efficiency of fixed income trading platforms. This role involves close collaboration with technical and business teams to align IT infrastructure with the evolving needs of the fixed income sector. By driving operational improvements, the executive supports the firm's commitment to providing comprehensive and reliable technology solutions. Through the strategic management of global resources, the executive ensures that the company maintains its reputation for excellence in supporting complex financial services.

    Michael Krupa - Workplace Chief Operating Officer

    Michael Krupa, the Workplace Chief Operating Officer at Citadel, directs the operational strategy for the firm's internal workplace environment and corporate facilities. By managing the integration of advanced IT systems within the physical workspace, the Workplace Chief Operating Officer ensures that employees have the tools necessary to maintain high levels of productivity and collaboration. Michael Krupa oversees the implementation of smart office technologies that support the firm's 24/7 operational requirements. This role involves coordinating with IT and facilities teams to ensure that the workplace infrastructure remains secure and efficient. By driving the adoption of innovative workplace solutions, the executive supports the firm's broader mission of fostering a culture of excellence and integrity. Through the strategic management of corporate resources, the executive ensures that the company provides a world-class environment that enables the entire team to deliver superior IT services to clients.

    Benjamin Rauh - Global Chief Operating Officer, Credit

    Benjamin Rauh, the Global Chief Operating Officer, Credit at Citadel, leads the operational strategy for the credit division, ensuring that IT services are perfectly aligned with the needs of credit-focused operations. By managing the technical infrastructure that supports credit analysis and risk assessment, the Global Chief Operating Officer, Credit ensures that the firm provides reliable and high-performance solutions to its clients. Benjamin Rauh oversees the implementation of global operational standards that enhance the efficiency and security of credit-related data systems. This role involves collaborating with cross-functional teams to optimize system performance and ensure 24/7 availability. By driving operational excellence within the credit vertical, the executive enhances the firm's ability to deliver tailored IT solutions. Through the strategic management of resources and processes, the executive ensures that the company remains a trusted partner for clients operating in the complex global credit markets.

    Stephen Youtzy - Chief Technology Officer

    Stephen Youtzy, the Chief Technology Officer at Citadel, architects the technical infrastructure and innovation frameworks that define the company's service offerings. By managing the deployment of advanced IT systems, the Chief Technology Officer ensures that all client solutions remain at the forefront of industry standards. Stephen Youtzy drives the development of proprietary tools that facilitate 24/7 support and seamless integration for diverse enterprise clients. This role requires constant coordination with engineering teams to optimize system performance and security protocols across global operations. By identifying emerging technological trends, the Chief Technology Officer positions the firm to address complex digital challenges effectively. Through the implementation of scalable IT strategies, the executive enhances the overall value proposition of the company, ensuring that technical excellence remains the cornerstone of every client interaction and long-term partnership.

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    Frequently Asked Questions Regarding Citadel Top Executives and Leadership Team

    Who leads Citadel?
    Citadel is led by Misha Stange (Office of the Founder and Chief Executive Officer), along with executives such as Jason Sefferino (Chief Operating Officer, Operations) and Janna Shaftan (Chief Operating Officer, Platform Engineering (Ai, Databases, China)).
    Who is part of Citadel’s executive team?
    The executive team of Citadel includes leaders such as Misha Stange (Office of the Founder and Chief Executive Officer), Jason Sefferino (Chief Operating Officer, Operations), Janna Shaftan (Chief Operating Officer, Platform Engineering (Ai, Databases, China)) and other senior executives.
    How many executives does Citadel have?
    Citadel has 10 executives leading key business areas.
    What roles are included in Citadel’s leadership team?
    The leadership team of Citadel includes roles such as Office of the Founder and Chief Executive Officer, Chief Operating Officer, Operations, Chief Operating Officer, Platform Engineering (Ai, Databases, China), Chief Operating Officer, Equities Quantitative Research, Chief Operating Officer, Commodities Team.