Trading Technologies Executive and Leadership Team

June, 2026

Leadership Overview

Trading Technologies has 7 executives leading key functions including strategy, revenue, finance, technology, operations, legal, and market expansion.

Driven by innovation, Trading Technologies is dedicated to empowering global capital markets participants with advanced, end-to-end trading solutions, fostering efficiency and growth across diverse asset classes and geographies.

Leadership Roles at Trading Technologies

  • Chief Executive Officer - Justin Llewellyn-Jones
  • Chief Financial Officer - Ryan Dixon
  • Chief Operating Officer & Chief of Staff - Melissa Waitz
  • President - Maria Mendoza
  • Chief Revenue Officer - Joshua Monroe
  • Executive VP, Development & Chief Technology Officer - Robert Slezak
  • Chief Legal Officer - Michael Ryan
  • Justin Llewellyn-Jones - Chief Executive Officer

    Justin Llewellyn-Jones, the Chief Executive Officer at Trading Technologies, directs the company's overarching strategy and global operations. This leadership role involves guiding the firm's expansion across multiple asset classes, including futures, options, fixed income, FX, and cryptocurrencies, aligning with the company's multi-X approach. Overseeing the development and deployment of the award-winning TT platform ecosystem, Justin Llewellyn-Jones ensures the delivery of market-leading technology to Tier 1 banks, brokerages, hedge funds, and proprietary traders worldwide. The Chief Executive Officer's focus extends to fostering innovation in data and analytics, quantitative trading, and compliance solutions, directly impacting the firm's market position and client success. This executive drives the vision for end-to-end trading operations, ensuring seamless integration of diverse workflows and geographies.
    Justin Llewellyn-Jones

    Ryan Dixon - Chief Financial Officer

    Ryan Dixon, the Chief Financial Officer at Trading Technologies, manages the company's financial health and strategic fiscal planning. This role encompasses overseeing all financial operations, including accounting, budgeting, forecasting, and financial reporting, ensuring robust fiscal discipline across the organization. Dixon directs capital allocation strategies to support the firm's global expansion and technological innovation, particularly in areas like data and analytics and quantitative trading solutions. The Chief Financial Officer plays a pivotal part in evaluating investment opportunities and managing financial risks associated with diverse asset classes such as futures, options, fixed income, FX, and cryptocurrencies. By ensuring financial stability and optimizing resource deployment, Ryan Dixon underpins Trading Technologies' capacity to deliver end-to-end trading operations and maintain its competitive edge in the capital markets.

    Melissa Waitz - Chief Operating Officer & Chief of Staff

    Melissa Waitz, the Chief Operating Officer & Chief of Staff at Trading Technologies, optimizes the company's operational efficiency and strategic execution. This dual role involves overseeing day-to-day business operations, ensuring seamless integration of diverse functions and workflows across the global organization. Waitz directs initiatives aimed at enhancing client service delivery, streamlining internal processes, and supporting the firm's rapid growth across asset classes like futures, options, fixed income, FX, and cryptocurrencies. As Chief of Staff, Melissa Waitz collaborates closely with the Chief Executive Officer to drive strategic projects, manage cross-functional alignment, and ensure the effective implementation of the company's vision. This executive's focus on operational excellence and strategic coordination is vital for Trading Technologies' ability to provide comprehensive, end-to-end trading solutions to its diverse client base.
    Melissa Waitz

    Maria Mendoza - President

    Maria Mendoza, the President at Trading Technologies, drives strategic initiatives and market expansion across the company's global operations. This executive leadership position focuses on enhancing the firm's market presence and fostering growth within key client segments, including Tier 1 banks, brokerages, and proprietary traders. Mendoza oversees the development and execution of strategies that leverage the TT platform's multi-X capabilities, spanning futures, options, fixed income, FX, and cryptocurrencies. The President's responsibilities include cultivating strategic partnerships and ensuring the effective delivery of end-to-end trading solutions that meet the evolving needs of capital markets participants. Maria Mendoza's leadership is instrumental in advancing Trading Technologies' mission to provide innovative technology and drive client success worldwide.

    Joshua Monroe - Chief Revenue Officer

    Joshua Monroe, the Chief Revenue Officer at Trading Technologies, architects and executes the global revenue generation strategy. This critical function involves driving sales growth across all client segments, including Tier 1 banks, brokerages, money managers, and proprietary traders, ensuring alignment with the company's multi-X asset class offerings. Overseeing the enterprise sales teams, Joshua Monroe cultivates key client relationships and identifies new market opportunities, particularly in areas like fixed income, FX, and cryptocurrencies. The Chief Revenue Officer's responsibilities include optimizing the sales funnel and enhancing customer acquisition and retention through data-driven insights and strategic partnerships. By expanding market reach and deepening client engagement, Monroe directly contributes to Trading Technologies' sustained financial performance and market leadership in providing end-to-end trading solutions.
    Joshua Monroe

    Robert Slezak - Executive VP, Development & Chief Technology Officer

    Robert Slezak, the Executive VP, Development & Chief Technology Officer at Trading Technologies, spearheads the technological vision and development roadmap for the firm's award-winning TT platform. This leadership position involves architecting and overseeing the creation of scalable, high-performance trading solutions that span multiple asset classes, functions, workflows, and geographies. Slezak directs the engineering teams responsible for innovating across futures, options, fixed income, FX, and cryptocurrencies, ensuring the platform's robust capabilities in trade execution, data and analytics, and compliance. The Chief Technology Officer's mandate includes driving advancements in cloud infrastructure, cybersecurity, and data management to support the end-to-end trading operations of global financial institutions. Robert Slezak's technical leadership is fundamental to Trading Technologies' ability to deliver cutting-edge software-as-a-service offerings and maintain its position as a market leader.
    Michael Ryan, the Chief Legal Officer at Trading Technologies, provides strategic legal counsel and oversees all legal and compliance matters for the global organization. This role is critical in navigating the complex regulatory landscape of capital markets, ensuring adherence to laws and regulations across all geographies where Trading Technologies operates. Ryan directs the legal team in managing contracts, intellectual property, corporate governance, and risk mitigation strategies, particularly concerning the firm's multi-X solutions encompassing futures, options, fixed income, FX, and cryptocurrencies. The Chief Legal Officer plays a key part in structuring partnerships and agreements that support the company's growth and innovation in areas like data and analytics and quantitative trading. Michael Ryan's expertise ensures that Trading Technologies maintains the highest standards of legal integrity and operational compliance.
    Michael Ryan

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    Frequently Asked Questions Regarding Trading Technologies Top Executives and Leadership Team

    Who leads Trading Technologies?
    Trading Technologies is led by Justin Llewellyn-Jones (Chief Executive Officer), along with executives such as Ryan Dixon (Chief Financial Officer) and Melissa Waitz (Chief Operating Officer & Chief of Staff).
    Who is part of Trading Technologies’s executive team?
    The executive team of Trading Technologies includes leaders such as Justin Llewellyn-Jones (Chief Executive Officer), Ryan Dixon (Chief Financial Officer), Melissa Waitz (Chief Operating Officer & Chief of Staff) and other senior executives.
    How many executives does Trading Technologies have?
    Trading Technologies has 7 executives leading key business areas.
    What roles are included in Trading Technologies’s leadership team?
    The leadership team of Trading Technologies includes roles such as Chief Executive Officer, Chief Financial Officer, Chief Operating Officer & Chief of Staff, President, Chief Revenue Officer.