Josiah Roberts is a Member of the Technical Staff in the Bay Area with eight years of professional software engineering experience building developer-facing and user-focused systems that are correct-by-default. He has progressed from consulting and early engineering roles to senior and principal engineering positions at Earnin and Divvy Homes, and now works at Anthropic, blending hands-on architecture with product-minded implementation. Josiah specializes in aligning incentives between people and systems, designing practical architectures, database schemas, and UIs that make safe, predictable behavior the default. Comfortable across the stack, he brings experience shipping production services at startups and mission-driven companies and a philosophy background that informs his emphasis on clear requirements and negotiable trade-offs.
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Josiah Roberts - Member Of The Technical Staff at Anthropic