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Sebastien Letniowski

Head of Engineering / CTO - Axis Platform at Worldline Global

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worldline.com

Company Details

Company: Worldline Global
Industry: financial services
Employees: 19000
Revenue: 4825685000
HQ Location: Bezons, Ile-de-France, France
Company LinkedIn: Pro only

Technology Stack

CSC Corporate Domains Outlook Pardot Microsoft Office 365 Zendesk WP Engine Jira Atlassian Confluence Atlassian Cloud OneTrust Citrix NetScaler MongoDB Adobe Media Optimizer Bing Ads DoubleClick Floodlight Facebook Custom Audiences reCAPTCHA Bootstrap Framework Linkedin Marketing Solutions Cedexis Radar

Professional Summary

Sebastien Letniowski is Head of Engineering / CTO - Axis Platform at Worldline Global. Worldline Global operates in the financial services industry and has 19000 employees. Based in France. Classified as a c-suite-level CTO leader. Their organization's technology stack includes CSC Corporate Domains, Outlook, Pardot, Microsoft Office 365, Zendesk, and 34 other technologies. Worldline Global reports annual revenue of 4825685000.

Industry & Role Insights

  • • CTO Rank tracks 138,833 CTO leaders with verified contact information.
  • • There are 34,741 tech leaders in the financial services industry in our database.
  • • We have verified contacts for 52 tech leaders at Worldline Global.
C-Suite level · CTO
Verified Apr 21, 2026

Position in the CTO Rank Database

  • • Sebastien Letniowski is 1 of 140,489 leaders with the CTO role tracked in the CTO Rank database.
  • • 7,533 hold the CTO role at financial services companies (out of 34,954 total financial services leaders in our database).
  • • 74 hold the CTO role at companies with 19000 employees.

Data sourced from 484,726 tech leadership profiles. Updated May 2026.

Frequently Asked Questions

How do I contact Sebastien Letniowski?

Sebastien Letniowski has a verified email address on file on CTO Rank. They work at Worldline Global. Pro members can access direct email addresses, LinkedIn profiles, and phone numbers.

What company does Sebastien Letniowski work for?

Sebastien Letniowski is Head of Engineering / CTO - Axis Platform at Worldline Global, a company in the financial services industry with 19000 employees. The company is headquartered in Bezons, Ile-de-France, France.

What is Sebastien Letniowski's role in technology leadership?

Sebastien Letniowski is classified as a CTO leader at the c-suite level.

What technologies does Sebastien Letniowski's organization use?

Sebastien Letniowski's organization uses a technology stack that includes CSC Corporate Domains, Outlook, Pardot, Microsoft Office 365, Zendesk, WP Engine. This information is useful for sales teams, recruiters, and technology vendors.

Is Sebastien Letniowski open to recruiting or new opportunities?

CTO Rank does not track open-to-work status. The best approach is to reach out directly to Sebastien Letniowski using the verified contact information available to Pro members. When recruiting a Head of Engineering / CTO - Axis Platform, personalizing your outreach with specifics about the role and tech stack typically yields the best response rate.

Can I pitch or sell to Sebastien Letniowski at Worldline Global?

Sebastien Letniowski is Head of Engineering / CTO - Axis Platform at Worldline Global. CTOs like Sebastien Letniowski typically evaluate vendors in CSC Corporate Domains, Outlook, Pardot, and related categories. Use CTO Rank Pro to get verified email and approach directly.

How accurate is Sebastien Letniowski's profile data?

CTO Rank verifies and refreshes profile data weekly. Sebastien Letniowski's profile includes verified contact details, company information, and technology stack data sourced from multiple public and proprietary sources.