Company Details
Technology Stack
Professional Summary
Mauro Castillo is Head of Engineering at On. On operates in the retail industry and has 3300 employees. Based in Zuerich, Zurich, Switzerland. Classified as a head-level Head of Engineering leader. Their organization's technology stack includes Cloudflare DNS, Gmail, Google Apps, Sailthru, CloudFlare Hosting, and 56 other technologies. On reports annual revenue of 2953348000.
Industry & Role Insights
- • CTO Rank tracks 26,722 Head of Engineering leaders with verified contact information.
- • There are 7,254 tech leaders in the retail industry in our database.
- • We have verified contacts for 17 tech leaders at On.
- • 2,364 tech leaders in Zurich are available in our database.
Position in the CTO Rank Database
- • Mauro Castillo is 1 of 26,783 leaders with the Head of Engineering role tracked in the CTO Rank database.
- • 438 hold the Head of Engineering role at retail companies (out of 7,314 total retail leaders in our database).
- • 393 hold the Head of Engineering role in Zurich.
- • 88 hold the Head of Engineering role at companies with 3300 employees.
- • Typical Head of Engineering compensation in Zurich: $190,000 – $370,000 (median $260,000). Composite from levels.fyi, Glassdoor, and Payscale data; adjusted for state cost of labor.
Data compiled from LinkedIn public profiles, company filings, and verified public technology signals. Methodology & sources · Updated May 2026.
Frequently Asked Questions
How do I contact Mauro Castillo?
Mauro Castillo has a verified email address on file on CTO Rank. They work at On. Pro members can access direct email addresses, LinkedIn profiles, and phone numbers.
What company does Mauro Castillo work for?
Mauro Castillo is Head of Engineering at On, a company in the retail industry with 3300 employees. The company is headquartered in Zuerich, Zuerich, Switzerland.
What is Mauro Castillo's role in technology leadership?
Mauro Castillo is classified as a Head of Engineering leader at the head level.
What technologies does Mauro Castillo's organization use?
Mauro Castillo's organization uses a technology stack that includes Cloudflare DNS, Gmail, Google Apps, Sailthru, CloudFlare Hosting, Salesforce. This information is useful for sales teams, recruiters, and technology vendors.
Is Mauro Castillo open to recruiting or new opportunities?
CTO Rank does not track open-to-work status. The best approach is to reach out directly to Mauro Castillo using the verified contact information available to Pro members. When recruiting a Head of Engineering, personalizing your outreach with specifics about the role and tech stack typically yields the best response rate.
Can I pitch or sell to Mauro Castillo at On?
Mauro Castillo is Head of Engineering at On. Head of Engineerings like Mauro Castillo typically evaluate vendors in Cloudflare DNS, Gmail, Google Apps, and related categories. Use CTO Rank Pro to get verified email and approach directly.
How accurate is Mauro Castillo's profile data?
CTO Rank verifies and refreshes profile data weekly. Mauro Castillo's profile includes verified contact details, company information, and technology stack data sourced from multiple public and proprietary sources.
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