Dr. Ipek Ozkaya

is the Technical Director of the AI-Native Software Engineering group at the SEI, leveraging her 25 years of experience to deliver practical engineering solutions for complex mission-critical environments. She leads a team that partners with key government and industry organizations to develop practical approaches for architecting, evolving, and governing trustworthy, resilient software systems for mission-critical environments. An internationally recognized leader in software engineering, Dr. Ozkaya works to deliver measurable impact across some of the world’s most demanding software ecosystems.
 

Kevin Walsh is a Director in the Information Technology and Cybersecurity team at GAO. Since joining GAO in June 2006, he has overseen work on various critical areas, including AI, Chief Information Officer authorities, the Census, cybersecurity, cyber insurance, global cybercrime, the Department of War's financial management, legacy IT systems, and major modernization efforts across the government.

His leadership has significantly contributed to GAO's High Risk areas, notably in Ensuring the Cybersecurity of the Nation and Improving IT Acquisitions and Management. Additionally, Walsh has highlighted the challenges associated with modernizing the Federal Aviation Administration's IT systems, highlighting that such efforts will require substantial time and financial investment.
 

Andrew McCallum joined Accenture in 1997 and spent the first 10 years of his career in the UK working for commercial and government clients, where he specialized in custom enterprise systems and led development and technology architecture teams. After transferring to Washington, DC in 2008, Andy had leadership roles on enterprise transformation programs at federal agencies including the Department of Education, US Postal Service, Centers for Medicaid and Medicare Services, and the US Census Bureau. From 2020 to 2026 he led Accenture’s work at the Department of Education before transitioning to serve as Accenture Federal Services’ Technology Lead earlier this year. Andy earned a master’s degree in physics from the University of Manchester, UK. He lives in Washington, DC with his wife and two daughters.
 

John Haller is the Technical Manager of the Cybersecurity Assurance Team at the SEI, where he supports a research and consulting portfolio focused on the security and resilience of the nation’s critical infrastructure, including defense assets and systems and the use of AI. He has 20 years of experience in information security, cyber resilience, compliance, and technology risk management. Haller holds a joint degree in law and international affairs from the University of Pittsburgh, and a master’s in Cybersecurity and Information Assurance from Penn State University. He is a U.S. Army and Iraq War veteran.