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Theodore Tanner Jr. is the Chief Technology Officer at Leidos, a leading science and technology solutions company. A developer-first technology executive with decades of expertise in AI/ML, distributed computing, and open-source engineering, he brings a deep commitment to architecting systems that empower human decision-makers and accelerate mission outcomes.
Who is the CTO of Leidos?
Theodore Tanner Jr. currently serves as the Chief Technology Officer at Leidos, assuming the role in January 2026. He brings decades of expertise in artificial intelligence, quantum computing, blockchain, and agent-based distributed systems, with a track record of delivering transformative solutions across industries including healthcare, defense, and media. Prior to joining Leidos, he held senior leadership roles at BigBear.ai, IBM Watson Health, Microsoft, and Apple, and co-founded two startups with successful exits. He holds 18 patents and is a Certified Quantum Ambassador for IBMQ, as well as an industrial member of the Association for Computing Machinery.
Work History
Theodore Tanner Jr.'s work history reflects a distinguished progression through senior technology leadership roles across the industry. Here is a detailed list of his positions:
- Leidos - Chief Technology Officer (January 2026 - Present)
- BigBear.ai - Chief Technology Officer (July 2023 - May 2025)
- Merative - CAO (September 2022 - July 2023)
- Digidesign - DSP Engineer (August 1992 - May 1994)
Education History
Theodore Tanner Jr. studied Electrical and Signal Processing at the University of Miami. This technical foundation has been central to his career-long focus on engineering complex, high-performance systems and his expertise spanning AI/ML, distributed computing, and signal-driven technologies.
When did Theodore Tanner Jr. join Leidos?
Theodore Tanner Jr. assumed the role of Chief Technology Officer at Leidos in January 2026. In this capacity, he oversees the company's technological strategy and innovation efforts, applying his extensive background in AI, quantum computing, and distributed systems to advance Leidos' mission of delivering science and technology solutions.
His appointment brings to Leidos a leader with a proven record of driving transformative technology initiatives across both large enterprises and high-growth ventures.
