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株式会社CARTA HOLDINGS Tech Stack

Digital marketing, ad platform, and talent services holding company

Technology, Information and Internet 港区, 東京都 1,001–5,000 employees Public Company

CARTA HOLDINGS operates a portfolio of three interconnected business units—digital marketing solutions, ad-tech platforms, and talent services—built on cloud infrastructure (AWS, GCP) with Python, Go, and SQL. The company is in a consolidation phase: hiring has decelerated to 9 roles in the last 30 days across a 1,001–5,000-person org, while internal pain points cluster around cross-unit alignment, AI tool adoption, and profitability optimization. Leadership is now integrating assets from parent groups (NTT Docomo and Dentsu) following a 2025 transition.

Tech Stack 34 technologies

Core StackAWS Python Azure AD GitHub Active Directory Go AWS SNS GCP Google Workspace Microsoft 365 Shell Script Microsoft Defender for Endpoint Sumo Logic Burp Suite Trivy Nmap Metasploit Dependabot Semgrep Yahoo Google Twitter Meta Instagram Pinterest DSP CRM SQL Word Excel+4 more

What 株式会社CARTA HOLDINGS Is Building

◆Challenges

Expanding sales team
Sharing challenges across units
Organizational challenges for business growth
Advertiser marketing challenges
Implementing ai tools
Customers marketing challenges
Identifying and improving business processes
Cross-unit technical support gaps
Engineers managing without guidance
Improving profitability of existing businesses

▲Active Projects

Online offline integrated marketing strategy
Talent strategy development
Poc planning and execution
New workflow implementation
Ci/cd pipeline improvement
Vulnerability detection tool integration
Digital marketing strategy for ec clients
Media planning and operation advertising direction
Creative landing page improvement
Penetration testing and reporting

Hiring Activity

Decelerating35 roles · 9 in 30d

Department

Marketing

9

Engineering

7

HR

7

Sales

5

Product

3

Security

2

Consulting

1

Data

1

Seniority

Senior

17

Mid

14

Manager

4

Staff

1

Notable leadership hires: Art Director

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About 株式会社CARTA HOLDINGS

CARTA HOLDINGS is a Tokyo-headquartered public holding company with approximately 1,500 employees operating three core business lines: digital marketing solutions, ad platforms, and talent-related services. The company traces its roots to Japan's first internet advertising firm and has grown alongside the domestic digital ecosystem. Its structure comprises multiple subsidiary companies at different growth stages, each with operational autonomy while the parent company provides management support. The organization recently became part of the NTT Docomo and Dentsu groups, positioning it to integrate assets and expand competitive capability across its portfolio.

Headquarters港区, 東京都

Company Size1,001–5,000 employees

Hiring MarketsJapan

Frequently Asked Questions

What tech stack does CARTA HOLDINGS use?

AWS, GCP, Python, Go, SQL, GitHub, Google Workspace, Microsoft 365, and security tools including Burp Suite, Trivy, and Metasploit for penetration testing.

What is CARTA HOLDINGS working on?

Current projects include online-offline integrated marketing strategy, CI/CD pipeline improvement, vulnerability detection tooling, new workflow implementation, and POC planning. The organization is also developing talent strategy and digital marketing solutions for e-commerce clients.