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 449+ AI use cases, 414+ tools, and adoption signal rankings.

Source

OPENAI
March 2026
Original case study ↗

Similar Cases

1S
How Super-Pharm Uses Vertex AI to Improve Inventory Accuracy from 50% to 90%
Super-Pharm
50% to 90%Inventory Accuracy
2S
How Shopify Scales AI-Powered Sidekick to Millions of Merchants with Claude on Vertex AI
Shopify
< 24 hoursModel Upgrade Deployment
3I
How Ibotta Uses Databricks Vector Search and AI/BI to Personalize Cashback Offers and Reduce Latency at Scale
Ibotta
IncreasedOffer relevance improvement
4GF
How Grupo Falabella Uses Agentforce on WhatsApp to Resolve 60% of Requests
Grupo Falabella
60%Service requests resolved autonomously on WhatsApp
5P
How PetSmart Uses AI Decisioning to Boost Salon Bookings 22%
PetSmart
22%Incremental lift in salon bookings
6AM
How Adore Me Uses Writer AI Studio to Cut Market Launch Time by 95%
Adore Me
40%Increase in non-branded search volume
7E
How Erewhon Automated 70% of Customer Service Tickets and Saved $40K Annually with Zapier
Erewhon
70%Customer service tickets automated
8E
How Etsy Uses Gemini and Vertex AI to Personalize 90 Million Shopping Experiences
Etsy
~80xListings per theme increase via algotorial curation
9G
How Gearfire Cut IT Costs 67% with Elastic Cloud Serverless
Gearfire
67%IT cost reduction in first month
10RG
How RSG Group Uses Snowflake Cortex AI to Deliver Member Sentiment Analysis Across 30+ Countries
RSG Group
10x fasterTime to insight improvement
See all use cases →