United StatesFinance and insurance2025 – ongoing

Stripe

Claude Code rollout to engineers

Stripe has Claude migrate 10,000 lines of Scala to Java in four days against a ten-week estimate

WorkingVendor's case studyVendor ↗

Problem

Stripe had enabled six coding assistants and wanted one tool that engineers could use without setup, with its supply-chain security concerns met.

Approach

The developer infrastructure team preinstalled Claude Code for 1,370 engineers. After two to three months of testing with Anthropic it built a signed enterprise binary that avoids the npm dependency chain. Talks, training and in-tool hints taught engineers to treat the assistant like a new colleague who needs context.

Results

4 days vs 10 weekstime for a 10,000-line Scala to Java migration with Claude, against the team's manual estimateVendor's case study[1]

1,370engineers with Claude Code enabledVendor's case study[1]

Takeaway

Preconfigured tools and a security review removed the barriers to company-wide use. Teams needed to teach engineers to give the assistant context.

Sources

Stripe customer story
Anthropic2026Vendor publication

Source summaries

[1]Anthropic2026

Anthropic describes Stripe's company-wide Claude Code rollout and a Scala-to-Java migration. It reports 1,370 engineers enabled and the migration done in four days.

Full details are in the original sources.

Added 25 Oct 2026 · Updated 25 Oct 2026