RetailSoftware Engineering

How Rakuten Fixes Issues 2x Faster with OpenAI Codex

RRakuten

Rakuten integrated OpenAI Codex into incident response, CI/CD pipelines, and autonomous development — cutting mean time to recovery by 50% and compressing quarter-long projects into weeks.

Outcomes

~50% reductionMean Time to Recovery
2x fasterIssue Resolution Speed
Quarter to weeksDevelopment Compression

Tools & Technologies

1OC
OpenAI Codex
AI-powered coding agent for autonomous software development, code review, and debugging

AI Categories

Developer Tools

Challenge

Needed to accelerate software delivery and incident response while maintaining security standards across a large, complex product ecosystem.

Solution

Integrated OpenAI Codex into incident response (KQL-based root cause analysis), CI/CD pipelines (automated code review and vulnerability checks), and autonomous full-stack development.

Full Story

Rakuten, a global e-commerce and fintech conglomerate with 30,000 employees, needed to accelerate software delivery and incident response while maintaining security standards across a complex product ecosystem.

Access 455+ AI use cases, 427+ tools, and adoption signal rankings.

Source

OPENAI
March 2026
Original case study ↗

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