Mercari Engineering blog engineering.mercari.com

We created this website as a way for us to openly share information about engineering at Mercari with everyone.

Mercari Engineering blog·

Scaling Myself: How I Run 22 Claude Code Sessions for DS4 Migration

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Mercari Engineering blog·

Build First, Discuss Later: How Prototypes Speed Up Product Decisions

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Mercari Engineering blog·

Four Mechanisms Behind EGP Code, an AI-Powered Landing Page Editor

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Mercari Engineering blog·

Designing a Credit-Management Microservice for Partner Invoice Payment

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Mercari Engineering blog·

Why we built EGP Code, an HTML-based AI editor for landing pages

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Mercari Engineering blog·

mercari-pm-agent Design — Automating the PM Workflow with Claude Code Skills and MCP

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Mercari Engineering blog·

Enabling AI usage at Mercari with Secure Devin Management

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Mercari Engineering blog·

Legacy Image Provider to Cloudflare Images: Traffic Estimation and Safe Rollout

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Mercari Engineering blog·

Safe Chunked Execution for Large-Scale Data Updates and Deletions

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Mercari Engineering blog·

Turborepo Remote Cache: Accelerating CI to “Move Fast”

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Mercari Engineering blog·

NavEntryScope: The missing scope in Android Hilt

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Mercari Engineering blog·

Building EGP Cards at Merpay: Lessons from a Frontend Internship

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Mercari Engineering blog·

When Speed Wasn’t About Coding Faster: Our Journey to ‘One Person One Release’

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Mercari Engineering blog·

Tales of OIDC & OAuth Security: What It Takes to Trust a Token

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Mercari Engineering blog·

Nine Months of DevEx Improvement at Mercari Group

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Mercari Engineering blog·

Capturing Network Packets in Kubernetes

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Mercari Engineering blog·

Building a Learning Culture with DevDojo

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Mercari Engineering blog·

Designing “Mandates” for Safe and Flexible Recurring Payments

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Mercari Engineering blog·

Supercharging User Engagement: How Mercari is Using Server-Driven UI to Reduce Time-to-Market

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Mercari Engineering blog·

The Cost of Speed: A Battle against Cost, Debt, and Diverging Systems

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