Juan Carreiro

Juan Carreiro serves as CTO at The App Master. The App Master operates in the information technology & services sector with approximately 29.0 employees.

Industry & Role Insights

• • MessageCEO tracks 50,503 executives in the information technology & services sector.
• • We have verified contacts for 3 executives at The App Master.
• • Our database includes 201,468 c suite-level executives.

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Ing Luca Chief Operating Officer at The App Master

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Matias Hilaire CEO at The App Master

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Marvin Jo CTO at 위블링

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Robert Kim CEO, North America at 당근마켓

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Kyung Lim CTO at 인터파크

Outreach Guidance — information technology & services Sector

Technology executives make decisions on infrastructure, tooling, and partnerships. When reaching out to Juan Carreiro, lead with your value proposition relative to the stack they currently use. Generic pitches perform poorly; specific technical relevance is key.

Juan Carreiro's Position in the MessageCEO Database

• •Juan Carreiro is 1 of 3 verified executive contacts we track at The App Master.
• •49,754 verified executive contacts in information technology & services are in the MessageCEO database.
• •751 verified contacts work at information technology & services companies in the 29.0 employee range (same size as The App Master).

Executive contact data compiled from public business filings, LinkedIn public profiles, company press materials, and verified outbound email testing. We do not publish personal addresses or sensitive identifiers. Methodology & sources · Removal requests handled at /remove-info · Updated July 2026.

How do I reach Juan Carreiro directly?

Juan Carreiro's verified email address is available to MessageCEO Pro subscribers. They currently serve as CTO at The App Master. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Juan Carreiro work for?

Juan Carreiro is CTO at The App Master, a company in the information technology & services sector with 29.0 employees.

Can I pitch or sell to Juan Carreiro?

As CTO at The App Master, Juan Carreiro is a key decision-maker in the information technology & services sector. MessageCEO Pro gives you verified email to reach Juan Carreiro directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Juan Carreiro in?

Juan Carreiro works in the information technology & services industry as CTO at The App Master. MessageCEO provides verified contact information for executives across all major industries.

Is Juan Carreiro's contact information verified?

Yes. MessageCEO verifies executive contact information through multiple data sources and regular validation checks. Juan Carreiro's profile is kept up-to-date with the latest available information.

Last updated: July 26, 2026