Amentum Services Executive and Leadership Team

Paul Pheeny, the Group Chief Financial Officer & Senior VP, Finance at Amentum Services, directs the company's financial strategy and fiscal operations. Pheeny oversees all aspects of financial planning, analysis, and reporting, ensuring robust fiscal health and strategic resource allocation to support Amentum's global initiatives. This leadership role is critical for managing investments in advanced engineering and technology solutions, particularly those addressing complex challenges in science, security, and sustainability. The Group Chief Financial Officer & Senior VP, Finance ensures financial compliance, drives profitability, and supports sustainable growth for the organization. Pheeny's expertise underpins Amentum's ability to undertake ambitious projects for the United States and its allies. By maintaining financial discipline, Paul Pheeny enables relentless ambition and boundless imagination across the company.

Scott Cassara, the Chief Financial Officer & Group Dynlogistics Vice President, Finance at Amentum Services, manages the financial strategy and operations for both the company and its Dynlogistics group. Cassara oversees financial planning, analysis, and reporting, ensuring fiscal integrity and strategic investment to support Amentum's advanced engineering and technology solutions. This dual role is essential for driving financial performance and optimizing resource allocation across diverse business units, particularly those focused on complex challenges in science, security, and sustainability. The Chief Financial Officer & Group Dynlogistics Vice President, Finance ensures compliance and supports sustainable growth, enabling Amentum to undertake critical projects for the United States and its allies. By guiding financial operations, Scott Cassara fosters relentless ambition and boundless imagination throughout the organization.

Stephen Arnette, the Chief Operating Officer at Amentum Services, orchestrates the company's global operational execution and service delivery. Arnette manages the day-to-day business activities, ensuring that Amentum's advanced engineering and technology solutions are delivered efficiently and effectively to clients worldwide. This critical role involves optimizing operational processes, driving performance improvements, and maintaining the highest standards of safety and quality across all projects. The Chief Operating Officer plays a pivotal part in translating strategic objectives into tangible operational outcomes, supporting Amentum's commitments in science, security, and sustainability. Arnette's leadership ensures that the company's complex challenges are met with relentless ambition and boundless imagination. By overseeing global operations, Stephen Arnette directly contributes to Amentum's reputation as a trusted partner for the United States and its allies.

Michael Sears, the Group Chief Operating Officer, Systems Integration Subsidiary at Amentum Services, leads the operational execution for the company's systems integration arm. Sears oversees the delivery of complex integration solutions, ensuring seamless functionality and performance for advanced technology projects. This leadership position is crucial for managing the intricate processes involved in integrating diverse systems, supporting Amentum's mission in science, security, and sustainability. The Group Chief Operating Officer, Systems Integration Subsidiary drives efficiency and innovation within the subsidiary, ensuring alignment with overarching corporate objectives. Sears' focus is on challenging convention and driving progress through meticulous operational oversight. By leading systems integration operations, Michael Sears ensures Amentum provides robust and reliable solutions to its global clientele.

Luis German, the Chief Information Officer at Amentum Services, directs the company's global information technology strategy and operations. German oversees the development and implementation of robust IT infrastructure, ensuring seamless digital operations that support Amentum's complex engineering and technology solutions. This leadership role involves managing cybersecurity protocols, data governance, and the integration of advanced technological tools to enhance efficiency and security across all business units. German's focus is on leveraging technology to drive innovation and maintain a competitive edge in science, security, and sustainability sectors. The Chief Information Officer ensures that IT systems align with the company's overarching mission, supporting critical projects for the United States and its allies. By fostering a culture of technological excellence, Luis German enables Amentum to tackle its most significant challenges.

T.J. Siebold, the Chief of Staff at Amentum Services, provides strategic support and operational coordination across the executive leadership team. Siebold facilitates the execution of key initiatives, ensuring alignment between departmental objectives and the company's core mission of delivering advanced engineering and technology solutions. This role involves managing critical projects, streamlining communication channels, and enhancing organizational efficiency to address complex challenges in science, security, and sustainability. The Chief of Staff acts as a key liaison, driving progress and ensuring that Amentum's commitments to safety, collaboration, and well-being are integrated into all operational facets. By supporting the executive team, T.J. Siebold contributes to Amentum's ability to challenge convention and drive progress for its global clientele.

Jill Bruning, the Chief Technology Officer at Amentum Services, drives the company's technological vision and innovation strategy. Bruning leads the research and development of cutting-edge solutions that address complex challenges in science, security, and sustainability for the United States and its allies. This position involves identifying emerging technologies, fostering a culture of undaunted curiosity, and ensuring that Amentum remains at the forefront of technological advancement. The Chief Technology Officer oversees the integration of innovative tools and methodologies to enhance Amentum's service offerings and operational capabilities. Bruning's expertise is crucial in challenging convention and driving progress through imaginative application of technology. By shaping the technological landscape, Jill Bruning ensures Amentum delivers unparalleled value and maintains its leadership in advanced engineering.

Joseph Ruffolo, the Senior Vice President, Chief of Staff at Amentum Services, provides critical strategic and operational support to executive leadership. Ruffolo enhances organizational effectiveness by streamlining processes and facilitating the execution of high-priority initiatives across the company. This role is integral to ensuring seamless collaboration and communication, enabling Amentum to effectively address complex challenges in science, security, and sustainability. The Senior Vice President, Chief of Staff supports the company's mission by driving operational excellence and fostering a culture of relentless ambition. Ruffolo's contributions are vital in translating strategic vision into actionable plans, ensuring that Amentum consistently delivers innovative technology solutions to its global partners. Joseph Ruffolo plays a key part in maintaining Amentum's commitment to progress and client success.

Samantha Colasardo, the Chief of Staff & Associate at Amentum Services, supports the strategic direction and operational execution of key programs. Colasardo enhances organizational efficiency by coordinating cross-functional efforts and managing critical projects that align with Amentum's mission in advanced engineering and technology solutions. This position is vital for ensuring that the company's commitments to science, security, and sustainability are met with precision and innovation. The Chief of Staff & Associate facilitates communication and collaboration, driving progress and upholding Amentum's reputation for tackling complex challenges. By providing dedicated support to leadership, Samantha Colasardo contributes to the company's ability to challenge convention and deliver exceptional results for the United States and its allies.

Thresa Burnes, the Chief of Staff for CTSAMM at Amentum Services, directs strategic operations and program management for the Counter-Small Unmanned Aircraft Systems (C-sUAS) mission. Burnes ensures the effective deployment of advanced technology solutions and engineering expertise to counter emerging threats in security and defense. This role is critical for coordinating efforts, optimizing resource allocation, and driving innovation within the CTSAMM framework. The Chief of Staff for CTSAMM plays a pivotal part in Amentum's commitment to providing cutting-edge solutions to the United States and its allies. Burnes' leadership focuses on enhancing operational capabilities and ensuring mission success through relentless ambition and boundless imagination. By managing the CTSAMM portfolio, Thresa Burnes directly supports Amentum's role in global security.