Company Details
Technology Stack
Professional Summary
Mark Zeldis is CTO/Partner at Walleye Trading. Walleye Trading operates in the financial services industry and has 390 employees. Based in New York, New York, United States. Classified as a c-suite-level CTO leader. Their organization's technology stack includes Salesforce, Cloudflare DNS, RackSpace DNS, Outlook, Rackspace, and 11 other technologies.
Position in the CTO Rank Database
- • Typical CTO compensation in New York: $250,000 – $650,000 (median $420,000). 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 June 2026.
Frequently Asked Questions
How do I contact Mark Zeldis?
Mark Zeldis has a verified email address on file on CTO Rank. They work at Walleye Trading. Pro members can access direct email addresses, LinkedIn profiles, and phone numbers.
What company does Mark Zeldis work for?
Mark Zeldis is CTO/Partner at Walleye Trading, a company in the financial services industry with 390 employees. The company is headquartered in Plymouth, Minnesota, United States.
What is Mark Zeldis's role in technology leadership?
Mark Zeldis is classified as a CTO leader at the c-suite level.
What technologies does Mark Zeldis's organization use?
Mark Zeldis's organization uses a technology stack that includes Salesforce, Cloudflare DNS, RackSpace DNS, Outlook, Rackspace, CloudFlare Hosting. This information is useful for sales teams, recruiters, and technology vendors.
Is Mark Zeldis open to recruiting or new opportunities?
CTO Rank does not track open-to-work status. The best approach is to reach out directly to Mark Zeldis using the verified contact information available to Pro members. When recruiting a CTO/Partner, personalizing your outreach with specifics about the role and tech stack typically yields the best response rate.
Can I pitch or sell to Mark Zeldis at Walleye Trading?
Mark Zeldis is CTO/Partner at Walleye Trading. CTOs like Mark Zeldis typically evaluate vendors in Salesforce, Cloudflare DNS, RackSpace DNS, and related categories. Use CTO Rank Pro to get verified email and approach directly.
How accurate is Mark Zeldis's profile data?
CTO Rank verifies and refreshes profile data weekly. Mark Zeldis's profile includes verified contact details, company information, and technology stack data sourced from multiple public and proprietary sources.
Get full access
Unlock verified emails, phone numbers, LinkedIn profiles, and CSV exports for 485,000+ tech leaders.
Upgrade to Pro