Mercari, Inc. Tech Stack

C2C marketplace and fintech platform operating across payments, crypto, and mobile commerce

Software Development Minatoku, Tokyo 1,001–5,000 employees Founded 2013 Public Company

Mercari operates a multi-product fintech ecosystem anchored by a C2C marketplace app, alongside Merpay (mobile payments), Mercoin (crypto exchange), and emerging services like mobile MVNO and gig work. The stack spans AWS, GCP, and Azure with Go, Java, TypeScript, and Kotlin at the core—mobile-first and polyglot. Active hiring in both engineering and design, combined with projects around Bitcoin transactions, crypto features, and AI-driven security automation, signals a shift from marketplace-focused growth toward building financial services infrastructure and expanding the payment/crypto surface.

Tech Stack 93 technologies

Core StackSlack ServiceNow Okta Azure AD AWS Figma Adobe Illustrator Python Adobe Creative Cloud Go Java PHP MySQL TypeScript Next.js Kotlin Workday GitHub Jetpack Compose Bitcoin Google Workspace Concur Excel Microsoft 365 GCP Photoshop SQL R Android XCUITest+61 more

AdoptingRAG

What Mercari, Inc. Is Building

◆Challenges

Supporting rapid growth of new services
Continuous risk management system updates
Complex financial services quality assurance
Improving seller experience
Designing new credit system
Optimizing risk and experience
Standardizing exception handling
Complex business structure
Reducing security risk
Rapidly changing fintech industry

▲Active Projects

New feature design and development for mercoin
Bitcoin transaction service development
Merpay risk assessment platform
Mercari marketplace app
Management accounting system implementation
Launch of hallo spot work business
Ai-driven security automation
Launching mercari mobile mvno
Growth story construction
Ai test automation implementation

Hiring Activity

Steady95 roles · 30 in 30d

Department

Engineering

Design

Finance

Product

Security

Support

Legal

Seniority

Senior

Mid

Intern

Junior

C-Level

Lead

Manager

Director

Notable leadership hires: Chief Operating Officer, Chief Information Security Officer, Art Director, Creative Director

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About Mercari, Inc.

Mercari is a public Japanese company founded in 2013 that operates a smartphone-first C2C marketplace for buying and selling secondhand goods, now expanded into a broader fintech and commerce platform. Beyond the core marketplace app, the company offers Merpay (mobile payments launched 2019), Mercoin (a cryptoasset exchange launched 2023), and is scaling new services including mobile MVNO and gig work offerings. The company operates at scale (1,001–5,000 employees), with significant hiring activity concentrated in Japan and India. Active pain points include managing rapid service growth, complex financial services QA, and continuous risk management—typical of a company operating across multiple regulated verticals.

HeadquartersMinatoku, Tokyo

Company Size1,001–5,000 employees

Founded2013

Hiring MarketsJapan, India

Frequently Asked Questions

What is Mercari's tech stack?

Mercari runs on AWS, GCP, and Azure, with Go, Java, TypeScript, and Kotlin for backend/mobile. Frontend uses Next.js, Android/Jetpack Compose for mobile. Database infrastructure includes MySQL and SQL. Tools: GitHub, Slack, Okta, ServiceNow, Figma.

What is Mercari working on right now?

Key projects include Mercoin (crypto) feature development, Bitcoin transaction services, Merpay risk assessment, mobile MVNO launch, and AI-driven security automation. Also in progress: management accounting system implementation and AI test automation.