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Guilherme Seder

Head of Commercial, Test & Learn Brazil | Manager, Specialist Sales at Mastercard

Head of QA Head
g***@mastercard.com Sign up
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Sao Paulo, State of Sao Paulo, Brazil

Company Details

Company: Mastercard
Employees: 36000
Revenue: 28167000000
HQ Location: Harrison, New York, United States
Company LinkedIn: Pro only

Professional Summary

Guilherme Seder is Head of Commercial, Test & Learn Brazil | Manager, Specialist Sales at Mastercard. Mastercard operates in the information technology & services industry and has 36000 employees. Based in Sao Paulo, State of Sao Paulo, Brazil. Classified as a head-level Head of QA leader. Their organization's technology stack includes Akamai, Akamai DNS, Outlook, Stripe, Genesys, and 55 other technologies. Mastercard reports annual revenue of 28167000000.

Head level · Head of QA
Verified Apr 18, 2026

Frequently Asked Questions

How do I contact Guilherme Seder?

Guilherme Seder has a verified email address on file on CTO Rank. They work at Mastercard. Pro members can access direct email addresses, LinkedIn profiles, and phone numbers.

What company does Guilherme Seder work for?

Guilherme Seder is Head of Commercial, Test & Learn Brazil | Manager, Specialist Sales at Mastercard, a company in the information technology & services industry with 36000 employees. The company is headquartered in Harrison, New York, United States.

What is Guilherme Seder's role in technology leadership?

Guilherme Seder is classified as a Head of QA leader at the head level.

What technologies does Guilherme Seder's organization use?

Guilherme Seder's organization uses a technology stack that includes Akamai, Akamai DNS, Outlook, Stripe, Genesys, OneTrust. This information is useful for sales teams, recruiters, and technology vendors.

Is Guilherme Seder open to recruiting or new opportunities?

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Can I pitch or sell to Guilherme Seder at Mastercard?

Guilherme Seder is Head of Commercial, Test & Learn Brazil | Manager, Specialist Sales at Mastercard. Head of QAs like Guilherme Seder typically evaluate vendors in Akamai, Akamai DNS, Outlook, and related categories. Use CTO Rank Pro to get verified email and approach directly.

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