By Light Executive and Leadership Team

July, 2026

Leadership Overview

By Light has 10 executives leading key functions including strategy, operations, technology, and finance.

Driven by a commitment to excellence, By Light provides comprehensive systems engineering and management for government networks, leveraging industry leaders to deliver impactful solutions.

Leadership Roles at By Light

  • Chief Executive Officer - Robert Donahue
  • President & Chief Executive Officer - Nichelle Christian
  • Chief Financial Officer - Kylie Allen
  • Chief Operating Officer - Mike Bowser
  • President - Brian Donahue
  • Chief Technology Officer - Stuart Armstrong
  • Chief Marketing Officer - Diane Hockenberry
  • Chief Revenue Officer - Michael Hatcher
  • Chief Technology Officer, Cyberspace Operations - Billy Smith
  • Chief Technology Officer, High Fidelity Solutions - Robert Milchenski
  • Robert Donahue - Chief Executive Officer

    Robert Donahue, the Chief Executive Officer at By Light, directs the company's overarching strategy and operational execution. Overseeing all business units, Donahue ensures alignment with market demands and client objectives within the government network engineering sector. This leadership role involves driving growth initiatives and fostering innovation across the organization. By focusing on robust systems engineering and management, Robert Donahue guides By Light in delivering comprehensive solutions for both classified and unclassified government networks. The Chief Executive Officer's vision shapes the company's direction, emphasizing the integration of commercial, civilian, and DoD expertise to achieve superior outcomes. Donahue's strategic oversight ensures the company maintains its position as a leader in providing advanced IT services.
    Robert Donahue

    Nichelle Christian - President & Chief Executive Officer

    Nichelle Christian, the President & Chief Executive Officer at By Light, spearheads the company's strategic vision and executive leadership. Christian drives the overall direction of By Light, focusing on expanding its capabilities in systems engineering and management for government networks. This executive role involves fostering strong client relationships and ensuring the successful implementation of complex IT solutions. By leveraging extensive experience from commercial, civilian, and DoD marketplaces, Nichelle Christian guides the company's growth and operational excellence. The President & Chief Executive Officer's leadership ensures that By Light consistently delivers high-quality, secure, and effective network solutions. Christian's commitment to innovation and client success underpins the company's mission to provide comprehensive IT services.

    Kylie Allen - Chief Financial Officer

    Kylie Allen, the Chief Financial Officer at By Light, directs the company's financial strategy, planning, and management. Allen oversees all fiscal operations, including budgeting, forecasting, and financial reporting, ensuring the financial health and stability of By Light. This role is essential for supporting the company's growth in providing comprehensive systems engineering and management for government networks. By managing financial resources effectively, Kylie Allen enables the successful execution of projects and strategic investments. The Chief Financial Officer's expertise is critical in navigating the financial complexities of the government contracting landscape. Allen's diligent financial oversight supports By Light's mission to deliver exceptional IT services.

    Mike Bowser - Chief Operating Officer

    Mike Bowser, the Chief Operating Officer at By Light, manages the day-to-day operations and ensures efficient service delivery across all projects. Bowser oversees the execution of systems engineering and management strategies, focusing on optimizing processes for government network design and implementation. This critical role involves coordinating departmental functions to meet client requirements and maintain high standards of performance. By leveraging industry best practices, Mike Bowser drives operational excellence and enhances the company's capacity to handle complex IT challenges. The Chief Operating Officer's focus on efficiency and quality directly supports By Light's mission to provide comprehensive solutions. Bowser's leadership ensures seamless integration of technical expertise and project management.

    Brian Donahue - President

    Brian Donahue, the President at By Light, plays a key role in guiding the company's strategic initiatives and operational oversight. Donahue focuses on enhancing By Light's service delivery and expanding its market reach within the government sector, particularly in systems engineering and management. This leadership position involves fostering collaboration across departments to ensure seamless project execution and client satisfaction. By leveraging extensive industry experience, Brian Donahue contributes to the company's sustained growth and operational efficiency. The President's strategic input is vital for maintaining By Light's reputation for excellence. Donahue's leadership supports the company's mission to provide comprehensive IT solutions.

    Stuart Armstrong - Chief Technology Officer

    Stuart Armstrong, the Chief Technology Officer at By Light, defines and directs the company's technological vision and innovation roadmap. Armstrong oversees the research and development of advanced systems engineering techniques and management methodologies for government networks. This role is pivotal in ensuring By Light remains at the forefront of IT solutions, particularly in the design and implementation of classified and unclassified networks. By evaluating emerging technologies, Stuart Armstrong guides the integration of cutting-edge solutions to enhance client capabilities. The Chief Technology Officer's expertise is crucial for maintaining By Light's competitive edge and delivering state-of-the-art services. Armstrong's strategic technological guidance supports the company's commitment to excellence.

    Diane Hockenberry - Chief Marketing Officer

    Diane Hockenberry, the Chief Marketing Officer at By Light, leads the strategic development and execution of all marketing and brand initiatives. Hockenberry is responsible for enhancing By Light's market presence and communicating the company's value proposition in systems engineering and management for government networks. This executive function involves identifying new market opportunities and developing targeted campaigns to reach key stakeholders. By fostering strong brand recognition, Diane Hockenberry ensures that By Light's expertise in designing and implementing classified and unclassified networks is effectively communicated. The Chief Marketing Officer's insights drive business development and support the company's growth objectives. Hockenberry's leadership strengthens By Light's position within the federal IT sector.
    Diane Hockenberry

    Michael Hatcher - Chief Revenue Officer

    Michael Hatcher, the Chief Revenue Officer at By Light, drives revenue generation and oversees all sales and business development activities. Hatcher is responsible for expanding By Light's client base and increasing revenue streams within the government sector, focusing on systems engineering and management solutions. This executive position involves developing and implementing effective sales strategies to secure new contracts and partnerships. By cultivating strong client relationships, Michael Hatcher ensures sustained revenue growth and market penetration. The Chief Revenue Officer's leadership is instrumental in achieving By Light's financial targets and market expansion goals. Hatcher's strategic approach to revenue management supports the company's overall success.

    Billy Smith - Chief Technology Officer, Cyberspace Operations

    Billy Smith, the Chief Technology Officer, Cyberspace Operations at By Light, leads the strategic direction and technological advancements in cybersecurity. Smith oversees the development and implementation of advanced cyberspace operations capabilities, ensuring robust security for government networks. This specialized role focuses on protecting critical infrastructure and data through innovative cybersecurity solutions. By leveraging deep expertise in cyber warfare and defense, Billy Smith enhances By Light's offerings in secure network design and management. The Chief Technology Officer, Cyberspace Operations' guidance is crucial for addressing evolving cyber threats. Smith's leadership ensures By Light provides cutting-edge security for its clients.

    Robert Milchenski - Chief Technology Officer, High Fidelity Solutions

    Robert Milchenski, the Chief Technology Officer, High Fidelity Solutions at By Light, spearheads technological innovation within the High Fidelity Solutions division. Milchenski directs the development and integration of advanced technologies that ensure high fidelity in data and systems for government clients. This role focuses on enhancing the accuracy, reliability, and performance of complex IT solutions. By driving advancements in data management and system integrity, Robert Milchenski supports By Light's commitment to delivering superior engineering services. The Chief Technology Officer, High Fidelity Solutions' expertise is vital for maintaining the highest standards of technical performance. Milchenski's leadership ensures the division's technological edge.

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    Frequently Asked Questions Regarding By Light Top Executives and Leadership Team

    Who leads By Light?
    By Light is led by Robert Donahue (Chief Executive Officer), along with executives such as Nichelle Christian (President & Chief Executive Officer) and Kylie Allen (Chief Financial Officer).
    Who is part of By Light’s executive team?
    The executive team of By Light includes leaders such as Robert Donahue (Chief Executive Officer), Nichelle Christian (President & Chief Executive Officer), Kylie Allen (Chief Financial Officer) and other senior executives.
    How many executives does By Light have?
    By Light has 10 executives leading key business areas.
    What roles are included in By Light’s leadership team?
    The leadership team of By Light includes roles such as Chief Executive Officer, President & Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, President.