CACI International Executive and Leadership Team

November, 2026

Leadership Overview

CACI International has 10 executives leading key functions including corporate strategy, technology innovation, operational management, and human capital development.

Committed to advancing national security through technological excellence, CACI International delivers mission-critical solutions that modernize government infrastructure and support complex defense requirements across global intelligence and federal civilian sectors.

Leadership Roles at CACI International

  • President & Chief Executive Officer - John Mengucci
  • Executive VP & Chief Operating Officer - David Young
  • Senior Vice President, Growth and Innovation, Chief Technology Officer - Michael Mourelatos
  • Executive Vice President & Chief of Staff - Lawrence King
  • Software Engineer & Chief Information Officer, Lead Office of Dod, Governance Directive - C. Holliday-Graham
  • C-Suite Executive Assistant, Chief Human Resources Officer - Jennifer LaFollette
  • Executive VP & Chief Human Resources Officer - Marcie Small
  • Vice President - Chief Technology Officer for Digital Solutions - Joseph Nicoletti
  • Deputy Chief Technology Officer, Caci Digital Solutions - William Colangelo
  • Chief Scientist & Chief Technology Officer, High-Power Laser Technology - Stephan Wielandy
  • John Mengucci - President & Chief Executive Officer

    John Mengucci, the President & Chief Executive Officer at CACI International, directs the overarching strategic vision and operational execution for the entire enterprise. Overseeing the alignment of domestic and international business segments, the President & Chief Executive Officer ensures that all service offerings meet the rigorous demands of national security and government modernization. This leadership role involves constant engagement with the Board to drive long-term growth and shareholder value while maintaining a focus on mission-critical outcomes. By fostering a culture of innovation and accountability, John Mengucci directly influences the company's ability to secure complex federal contracts. Through the management of large-scale organizational initiatives, Mengucci maintains the firm's competitive edge in the intelligence and defense sectors, ensuring that the organization remains a primary partner for federal agencies requiring advanced digital solutions and engineering expertise.
    John Mengucci

    David Young - Executive VP & Chief Operating Officer

    David Young, the Executive VP & Chief Operating Officer at CACI International, manages the day-to-day execution of domestic operations and service delivery. Overseeing the performance of large-scale contracts, the Executive VP & Chief Operating Officer ensures that all engineering and IT services are delivered on time and within budget. This role involves coordinating across multiple business units to optimize resource utilization and maintain high standards of operational excellence. By streamlining service delivery processes, David Young directly supports the company's ability to meet the rigorous requirements of defense and intelligence customers. Through the oversight of operational metrics and project management, Young ensures that the firm maintains its reputation for reliability and technical precision, driving consistent growth across the domestic segment of the business.
    David Young

    Michael Mourelatos - Senior Vice President, Growth and Innovation, Chief Technology Officer

    Michael Mourelatos, the Senior Vice President, Growth and Innovation, Chief Technology Officer at CACI International, architects the technological roadmap that fuels enterprise expansion. Overseeing the integration of emerging technologies into existing service portfolios, the Senior Vice President, Growth and Innovation, Chief Technology Officer ensures that the company remains at the forefront of cyber, space, and C4ISR capabilities. This role involves identifying new market opportunities and driving the development of proprietary software products that address evolving threats. By bridging the gap between research and practical application, Michael Mourelatos directly impacts the firm's ability to deliver high-value solutions to defense and intelligence customers. Through strategic collaboration with internal engineering teams, Mourelatos accelerates the deployment of advanced digital tools, ensuring that the organization consistently provides superior technical advantages to mission-critical clients across North American and international markets.

    Lawrence King - Executive Vice President & Chief of Staff

    Lawrence King, the Executive Vice President & Chief of Staff at CACI International, manages the internal operational cadence and strategic coordination of the executive leadership team. Overseeing the execution of corporate priorities, the Executive Vice President & Chief of Staff ensures that departmental objectives remain synchronized with the broader mission of supporting national security. This role involves facilitating communication between the C-suite and various business units to streamline decision-making processes and enhance organizational efficiency. By optimizing internal workflows, Lawrence King directly supports the company's ability to respond rapidly to government modernization requirements. Through the oversight of critical administrative and strategic projects, King maintains the operational integrity of the firm, ensuring that all resources are effectively allocated to meet the complex demands of federal civilian and defense sector clients.

    C. Holliday-Graham - Software Engineer & Chief Information Officer, Lead Office of Dod, Governance Directive

    C. Holliday-Graham, the Software Engineer & Chief Information Officer, Lead Office of Dod, Governance Directive at CACI International, governs the digital infrastructure and compliance frameworks essential for secure government operations. Overseeing the implementation of rigorous governance directives, the Software Engineer & Chief Information Officer, Lead Office of Dod, Governance Directive ensures that all software development and IT services adhere to the highest standards of security and reliability. This role involves managing the technical architecture that supports mission-critical data processing for defense agencies. By enforcing strict compliance protocols, C. Holliday-Graham directly protects the integrity of the company's digital solutions. Through the continuous monitoring of IT systems and the application of advanced engineering principles, Holliday-Graham ensures that the organization maintains its status as a trusted provider of secure, modernized technology for the most sensitive federal environments.

    Jennifer LaFollette - C-Suite Executive Assistant, Chief Human Resources Officer

    Jennifer LaFollette, the C-Suite Executive Assistant, Chief Human Resources Officer at CACI International, manages the strategic alignment of human capital with the company's specialized talent requirements. Overseeing the recruitment and retention of high-level technical experts, the C-Suite Executive Assistant, Chief Human Resources Officer ensures that the workforce possesses the necessary skills to support complex national security missions. This role involves developing internal programs that foster professional growth and organizational culture. By optimizing talent acquisition strategies, Jennifer LaFollette directly impacts the firm's capacity to deliver high-quality engineering and IT services. Through the management of personnel policies and executive support functions, LaFollette ensures that the organization maintains a robust and capable team, ready to address the evolving needs of government clients in the intelligence and defense sectors.

    Marcie Small - Executive VP & Chief Human Resources Officer

    Marcie Small, the Executive VP & Chief Human Resources Officer at CACI International, drives the enterprise-wide strategy for workforce development and organizational health. Overseeing the implementation of comprehensive talent management systems, the Executive VP & Chief Human Resources Officer ensures that the company attracts and retains the specialized personnel required for mission-critical defense and intelligence work. This role involves designing performance frameworks that reward innovation and technical excellence. By cultivating a high-performance environment, Marcie Small directly supports the firm's ability to scale its operations and meet the demands of federal modernization projects. Through the oversight of employee engagement and leadership development initiatives, Small ensures that the organization remains a preferred employer for top-tier professionals, ultimately strengthening the company's competitive position in the global technology consulting market.
    Marcie Small

    Joseph Nicoletti - Vice President - Chief Technology Officer for Digital Solutions

    Joseph Nicoletti, the Vice President - Chief Technology Officer for Digital Solutions at CACI International, leads the technical strategy for the company's digital transformation offerings. Overseeing the development of scalable software platforms, the Vice President - Chief Technology Officer for Digital Solutions ensures that clients receive cutting-edge tools for enterprise IT and mission support. This role involves guiding engineering teams through the lifecycle of complex digital projects, from initial design to final deployment. By focusing on the modernization of legacy systems, Joseph Nicoletti directly impacts the efficiency and security of federal civilian agencies. Through the application of advanced digital methodologies, Nicoletti ensures that the firm provides robust, future-proof solutions that address the specific operational challenges faced by government customers in the rapidly evolving technology landscape.

    William Colangelo - Deputy Chief Technology Officer, Caci Digital Solutions

    William Colangelo, the Deputy Chief Technology Officer, Caci Digital Solutions at CACI International, supports the technical direction of the firm's digital service portfolio. Overseeing the implementation of specific technical standards, the Deputy Chief Technology Officer, Caci Digital Solutions ensures that engineering teams maintain consistency and quality across all digital projects. This role involves evaluating new technologies for potential integration into the company's service offerings. By providing technical oversight for complex software initiatives, William Colangelo directly contributes to the successful delivery of modernized IT solutions for federal clients. Through the management of technical resources and the promotion of best practices, Colangelo ensures that the organization remains capable of executing sophisticated digital transformations that enhance the operational effectiveness of government agencies.

    Stephan Wielandy - Chief Scientist & Chief Technology Officer, High-Power Laser Technology

    Stephan Wielandy, the Chief Scientist & Chief Technology Officer, High-Power Laser Technology at CACI International, directs the research and development of specialized laser systems for defense applications. Overseeing the scientific advancement of high-power technology, the Chief Scientist & Chief Technology Officer, High-Power Laser Technology ensures that the company provides unique, high-performance solutions for national security missions. This role involves leading experimental projects and translating complex physics into practical, deployable hardware. By pushing the boundaries of laser technology, Stephan Wielandy directly impacts the firm's ability to offer superior capabilities in the C4ISR and space sectors. Through the management of specialized research teams, Wielandy ensures that the organization maintains a significant technological advantage, providing critical defense customers with the advanced tools necessary to address emerging global threats.

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    Frequently Asked Questions Regarding CACI International Top Executives and Leadership Team

    Who leads CACI International?
    CACI International is led by John Mengucci (President & Chief Executive Officer), along with executives such as David Young (Executive VP & Chief Operating Officer) and Michael Mourelatos (Senior Vice President, Growth and Innovation, Chief Technology Officer).
    Who is part of CACI International’s executive team?
    The executive team of CACI International includes leaders such as John Mengucci (President & Chief Executive Officer), David Young (Executive VP & Chief Operating Officer), Michael Mourelatos (Senior Vice President, Growth and Innovation, Chief Technology Officer) and other senior executives.
    How many executives does CACI International have?
    CACI International has 10 executives leading key business areas.
    What roles are included in CACI International’s leadership team?
    The leadership team of CACI International includes roles such as President & Chief Executive Officer, Executive VP & Chief Operating Officer, Senior Vice President, Growth and Innovation, Chief Technology Officer, Executive Vice President & Chief of Staff, Software Engineer & Chief Information Officer, Lead Office of Dod, Governance Directive.