Building the most AI-pilled engineering team in the world | Fiona Fung (Anthropic)
TL;DR
Anthropic's code output jumped 8x, so verification became the new bottleneck: Fung says the hard part is no longer producing code but checking quality, impact, and user experience as engineers, PMs, and designers all start committing code.
Managers are using Claude as an operating layer, not just a coding tool: Fung runs Claude sessions across repos, Slack feedback, and metrics so monthly reviews become evidence-based conversations about outcomes, bugs, and themes instead of anecdotal status updates.
The strongest hires now fall into two buckets: Anthropic looks for creative builders with product sense and deep systems experts who can verify the hard parts, especially in distributed systems and other trust-but-verify domains.
High agency is the team norm, but only with high accountability: Fung wants people to take initiative, propose hypotheses, and ship boldly, while staying responsible for what broke, what worked, and whether the work actually mattered.
AI can make engineering lonelier, so Anthropic is adding human rituals back in: After noticing people were mostly working solo with agents, the Claude Code team started pairwise programming lunches and hackathons to share workflows and keep team energy up.
Fung is most worried about the next generation of engineers: If models abstract away more code over time, she thinks the big open question is how newcomers still learn architecture, dependencies, and deep technical intuition, possibly through more apprenticeship-style paths.
The Breakdown
Anthropic engineers now ship 8 times more code per quarter than they did a few years ago, and Fiona Fung says the real bottleneck is no longer coding but verification, product judgment, and team culture. Her playbook for an AI-native engineering org is simple but demanding: everyone becomes a builder, managers stay hands-on, and high agency only works when it comes with high accountability.
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