ACI Worldwide Executive and Leadership Team

October, 2026

Leadership Overview

ACI Worldwide has 6 executives leading key functions including strategy, digital innovation, global operations, technology architecture, financial management, and human capital development.

Focused on delivering secure real-time payment platforms, ACI Worldwide empowers financial institutions and merchants through advanced cloud-based technology and comprehensive fraud management solutions.

Leadership Roles at ACI Worldwide

  • President & Chief Executive Officer - Thomas Warsop
  • Visual Web Solutions Founder & Chief Executive Officer - Isaac Moscovich
  • Group Chief Executive Officer - Evelyn Sasmito
  • Chief Financial Officer - Robert Leibrock
  • Chief Technology Officer - Jeffrey Kissling
  • Chief Human Resources Officer - Praveena Nathawat
  • Thomas Warsop - President & Chief Executive Officer

    Thomas Warsop, the President & Chief Executive Officer at ACI Worldwide, directs the overarching corporate strategy and global market expansion. Overseeing the integration of real-time payment platforms, the President & Chief Executive Officer ensures alignment between product development and the evolving needs of financial institutions. This leadership role involves driving long-term growth through cloud-based payment technology and maintaining competitive advantages in the Software and Technology industry. By fostering collaboration across international markets, Thomas Warsop directly impacts the company's ability to deliver secure, scalable solutions for merchants and billers. Ultimately, Warsop secures the financial health and operational excellence of the organization while navigating complex regulatory landscapes across diverse global regions.
    Thomas Warsop

    Isaac Moscovich - Visual Web Solutions Founder & Chief Executive Officer

    Isaac Moscovich, the Visual Web Solutions Founder & Chief Executive Officer at ACI Worldwide, architects the digital interface strategies for payment orchestration. Overseeing the user experience design for merchant payment portals, the Visual Web Solutions Founder & Chief Executive Officer ensures seamless interaction for global clients. This leadership role involves optimizing digital payment workflows to increase transaction efficiency and reduce friction in billing processes. By leveraging advanced web technologies, Isaac Moscovich directly impacts the accessibility and performance of the company's cloud-based platforms. Ultimately, Moscovich drives the modernization of digital touchpoints, ensuring that ACI Worldwide maintains a superior standard for merchant-facing software solutions across all international markets.

    Evelyn Sasmito - Group Chief Executive Officer

    Evelyn Sasmito, the Group Chief Executive Officer at ACI Worldwide, manages the operational synergy across diverse business units and regional divisions. Overseeing the execution of fraud management initiatives, the Group Chief Executive Officer ensures that security protocols remain robust against emerging threats in the financial sector. This leadership role involves coordinating cross-functional teams to streamline payment processing services for global banking partners. By implementing standardized operational frameworks, Evelyn Sasmito directly impacts the consistency and reliability of the company's service delivery. Ultimately, Sasmito optimizes the organizational structure to support rapid scaling and sustained performance, ensuring that ACI Worldwide remains a leader in the global financial technology landscape.

    Robert Leibrock - Chief Financial Officer

    Robert Leibrock, the Chief Financial Officer at ACI Worldwide, manages the fiscal health and capital allocation strategies for the organization. Overseeing the financial reporting and investment planning, the Chief Financial Officer ensures that resources support the company's mission of providing advanced payment technology. This leadership role involves analyzing market trends to guide strategic decision-making and long-term profitability. By optimizing the capital structure and managing investor relations, Robert Leibrock directly impacts the company's capacity for sustained growth and innovation. Ultimately, Leibrock secures the financial stability required to maintain the company's competitive position in the Software and Technology industry, ensuring that ACI Worldwide possesses the necessary funding to pursue ambitious global expansion and product development goals.

    Jeffrey Kissling - Chief Technology Officer

    Jeffrey Kissling, the Chief Technology Officer at ACI Worldwide, directs the engineering and development of real-time payment infrastructure. Overseeing the transition to cloud-native architectures, the Chief Technology Officer ensures that all software platforms meet the highest standards of security and scalability. This leadership role involves managing the technical roadmap for fraud prevention tools and payment orchestration engines. By fostering innovation in software development, Jeffrey Kissling directly impacts the company's ability to provide cutting-edge solutions to financial institutions worldwide. Ultimately, Kissling maintains the technical integrity of the entire product suite, ensuring that ACI Worldwide delivers high-performance technology that supports the complex, high-volume requirements of modern global commerce.

    Praveena Nathawat - Chief Human Resources Officer

    Praveena Nathawat, the Chief Human Resources Officer at ACI Worldwide, directs the talent acquisition and organizational development strategies. Overseeing the cultivation of a high-performance culture, the Chief Human Resources Officer ensures that the workforce possesses the specialized skills required for the financial technology sector. This leadership role involves implementing comprehensive training programs and diversity initiatives to support the company's global operations. By aligning human capital with corporate objectives, Praveena Nathawat directly impacts the company's ability to innovate and deliver superior payment solutions. Ultimately, Nathawat fosters an environment that attracts and retains top-tier talent, ensuring that ACI Worldwide remains equipped to address the evolving challenges of the global payments market.
    Praveena Nathawat

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    Frequently Asked Questions Regarding ACI Worldwide Top Executives and Leadership Team

    Who leads ACI Worldwide?
    ACI Worldwide is led by Thomas Warsop (President & Chief Executive Officer), along with executives such as Isaac Moscovich (Visual Web Solutions Founder & Chief Executive Officer) and Evelyn Sasmito (Group Chief Executive Officer).
    Who is part of ACI Worldwide’s executive team?
    The executive team of ACI Worldwide includes leaders such as Thomas Warsop (President & Chief Executive Officer), Isaac Moscovich (Visual Web Solutions Founder & Chief Executive Officer), Evelyn Sasmito (Group Chief Executive Officer) and other senior executives.
    How many executives does ACI Worldwide have?
    ACI Worldwide has 6 executives leading key business areas.
    What roles are included in ACI Worldwide’s leadership team?
    The leadership team of ACI Worldwide includes roles such as President & Chief Executive Officer, Visual Web Solutions Founder & Chief Executive Officer, Group Chief Executive Officer, Chief Financial Officer, Chief Technology Officer.