Brian KimJohnson is a Senior Principal Software Engineer at Dfns. He previously spent over 8 years at Gemini, where he led Wallet Engineering and helped build institutional-grade wallet, signing, and multi-chain infrastructure. Prior to Gemini, he worked at Amazon and Audible on large-scale distributed systems. Brian has over 20 years of experience across crypto, fintech, and big tech, with deep expertise in wallet infrastructure, MPC, HSMs, TEEs, and transaction systems.
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