CACI International Executive and Leadership Team

July, 2026

Leadership Overview

CACI International has 10 executives leading key functions including strategy, technology, human resources, and information systems.

Driven by innovation, CACI International is dedicated to providing advanced technology and expertise to support national security missions and government modernization, impacting federal civilian, defense, and intelligence sectors.

Leadership Roles at CACI International

  • President & Chief Executive Officer - John Mengucci
  • Vice President - Chief Technology Officer for Digital Solutions - Joseph Nicoletti
  • Chief Scientist & Chief Technology Officer, High-Power Laser Technology - Stephan Wielandy
  • Executive Vice President & Chief Human Resources Officer - Marjorie Bailey
  • C-Suite Executive Assistant, Chief Human Resources Officer - Jennifer LaFollette
  • Executive VP & Chief Human Resources Officer - Angie Combs
  • Principal Architect & Chief Technology Officer, Optics & Systems, Office - Maxim Bolshtyansky
  • Software Engineer & Chief Information Officer, Lead Office of Dod, Governance Directive - C. Holliday-Graham
  • Contractor Support To DON Chief Information Officer - Steven Daughety
  • Deputy Chief Technology Officer, Caci Digital Solutions - William Colangelo
  • John Mengucci - President & Chief Executive Officer

    John Mengucci, the President & Chief Executive Officer at CACI International, directs the company's overall strategic vision and operational execution. Overseeing both Domestic and International Operations segments, Mengucci ensures CACI's expertise and technology effectively serve national security missions and government modernization efforts across intelligence, defense, and federal civilian sectors. This leadership role involves driving growth through digital solutions, C4ISR, cyber and space capabilities, engineering services, enterprise IT, and mission support. By optimizing business development and client engagement, John Mengucci directly impacts CACI's market position and financial performance. Ultimately, Mengucci secures long-term enterprise value and strengthens CACI's commitment to its customers.
    John Mengucci

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

    Joseph Nicoletti, the Vice President - Chief Technology Officer for Digital Solutions at CACI International, architects the company's technological advancements in digital transformation. Nicoletti spearheads the development and implementation of cutting-edge digital solutions, ensuring CACI's offerings meet the evolving needs of federal government agencies and commercial enterprises. This role involves deep engagement with areas such as cloud computing, data analytics, and artificial intelligence to enhance mission outcomes. By fostering innovation within the digital solutions domain, Joseph Nicoletti directly contributes to CACI's competitive edge in the market. Ultimately, Nicoletti drives the technological foundation for CACI's success in modernizing government operations.

    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, leads pioneering research and development in advanced laser systems. Wielandy's expertise drives innovation in high-power laser technology, directly supporting national security missions that require sophisticated defense capabilities. This critical role involves translating scientific discovery into deployable technological solutions, ensuring CACI remains at the forefront of defense technology. By advancing the capabilities of laser systems, Stephan Wielandy significantly enhances CACI's contribution to the defense sector. Ultimately, Wielandy's work strengthens CACI's technological leadership and its ability to deliver mission-critical solutions.

    Marjorie Bailey - Executive Vice President & Chief Human Resources Officer

    Marjorie Bailey, the Executive Vice President & Chief Human Resources Officer at CACI International, shapes the company's talent strategy and organizational development. Bailey oversees all human resources functions, ensuring CACI attracts, retains, and develops a high-performing workforce essential for delivering complex technology solutions. This leadership position involves fostering a culture of excellence, driving employee engagement, and managing comprehensive HR programs across both Domestic and International Operations. By cultivating a robust talent pipeline, Marjorie Bailey directly supports CACI's mission to provide expertise and technology to its clients. Ultimately, Bailey ensures CACI's human capital is aligned with its strategic objectives and market demands.

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

    Jennifer LaFollette, the C-Suite Executive Assistant, Chief Human Resources Officer at CACI International, provides critical administrative and strategic support to the Chief Human Resources Officer. LaFollette facilitates the efficient operation of the HR department, managing key initiatives and ensuring seamless communication across CACI's extensive workforce. This role involves coordinating executive schedules, preparing essential documentation, and supporting the implementation of HR policies and programs designed to enhance employee experience and organizational effectiveness. By ensuring the smooth functioning of the HR leadership's office, Jennifer LaFollette directly contributes to the effective management of CACI's human capital. Ultimately, LaFollette enables the HR function to better serve CACI's employees and strategic goals.

    Angie Combs - Executive VP & Chief Human Resources Officer

    Angie Combs, the Executive VP & Chief Human Resources Officer at CACI International, drives the strategic direction of human capital management across the organization. Combs leads initiatives focused on talent acquisition, employee development, and fostering a positive corporate culture that supports CACI's mission-critical work. This executive role involves aligning HR strategies with business objectives to ensure CACI has the skilled personnel required for national security and government modernization projects. By championing employee well-being and professional growth, Angie Combs directly enhances CACI's ability to deliver exceptional services. Ultimately, Combs ensures CACI's workforce remains a key competitive advantage.

    Maxim Bolshtyansky - Principal Architect & Chief Technology Officer, Optics & Systems, Office

    Maxim Bolshtyansky, the Principal Architect & Chief Technology Officer, Optics & Systems, Office at CACI International, leads the architectural design and technological innovation for optics and systems. Bolshtyansky's role is pivotal in developing advanced solutions that enhance CACI's capabilities in areas such as intelligence, surveillance, and reconnaissance. This position involves deep technical expertise in optical engineering and system design, ensuring CACI's technology offerings are state-of-the-art. By architecting sophisticated optics and systems, Maxim Bolshtyansky directly contributes to the effectiveness of CACI's mission support for national security clients. Ultimately, Bolshtyansky drives technological excellence in critical defense and intelligence applications.

    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, directs information technology strategy and governance for critical Department of Defense initiatives. Holliday-Graham oversees the implementation of robust IT systems and ensures compliance with stringent governance directives, supporting CACI's role in defense modernization. This leadership function involves managing software engineering efforts and ensuring the integrity and security of information systems vital to national security. By providing expert IT leadership within the DoD context, C. Holliday-Graham directly enhances CACI's service delivery. Ultimately, Holliday-Graham ensures CACI's IT infrastructure effectively supports defense objectives.

    Steven Daughety - Contractor Support To DON Chief Information Officer

    Steven Daughety, Contractor Support To DON Chief Information Officer at CACI International, provides essential technical and strategic guidance to the Department of the Navy's Chief Information Officer. Daughety's role is crucial in enhancing the DON's IT infrastructure and cybersecurity posture, supporting CACI's extensive work within the defense sector. This position involves advising on technology adoption, system integration, and information assurance to meet complex operational requirements. By delivering expert support to the DON CIO, Steven Daughety directly contributes to the modernization and security of naval information systems. Ultimately, Daughety ensures CACI's contractor support aligns with critical defense technology objectives.

    William Colangelo - Deputy Chief Technology Officer, Caci Digital Solutions

    William Colangelo, the Deputy Chief Technology Officer, Caci Digital Solutions at CACI International, collaborates on advancing the company's digital transformation capabilities. Colangelo supports the CTO in driving innovation and implementing cutting-edge technologies within CACI's digital solutions portfolio, serving federal and commercial clients. This role focuses on enhancing the technical architecture and delivery of digital services, ensuring CACI remains competitive in areas like cloud, AI, and data analytics. By contributing to the strategic development of digital solutions, William Colangelo directly strengthens CACI's technological offerings. Ultimately, Colangelo aids in CACI's mission to provide advanced digital expertise to its customer base.

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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 Joseph Nicoletti (Vice President - Chief Technology Officer for Digital Solutions) and Stephan Wielandy (Chief Scientist & Chief Technology Officer, High-Power Laser Technology).
    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), Joseph Nicoletti (Vice President - Chief Technology Officer for Digital Solutions), Stephan Wielandy (Chief Scientist & Chief Technology Officer, High-Power Laser Technology) 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, Vice President - Chief Technology Officer for Digital Solutions, Chief Scientist & Chief Technology Officer, High-Power Laser Technology, Executive Vice President & Chief Human Resources Officer, C-Suite Executive Assistant, Chief Human Resources Officer.