Company Details
Technology Stack
Professional Summary
John Oleinik is Director - Product & Engineering at T-Mobile. T-Mobile operates in the telecommunications industry and has 70000 employees. Based in Seattle, Washington, United States. Classified as a director-level Director of Engineering leader. Their organization's technology stack includes Akamai, Akamai DNS, Outlook, Brightcove, Backbone JS Library, and 77 other technologies. T-Mobile reports annual revenue of 81400000000.
Industry & Role Insights
- • CTO Rank tracks 71,675 Director of Engineering leaders with verified contact information.
- • There are 10,929 tech leaders in the telecommunications industry in our database.
- • We have verified contacts for 156 tech leaders at T-Mobile.
- • 12,350 tech leaders in Washington are available in our database.
Position in the CTO Rank Database
- • John Oleinik is 1 of 71,959 leaders with the Director of Engineering role tracked in the CTO Rank database.
- • 2,609 hold the Director of Engineering role at telecommunications companies (out of 11,085 total telecommunications leaders in our database).
- • 2,010 hold the Director of Engineering role in Washington.
- • 302 hold the Director of Engineering role at companies with 70000 employees.
- • Typical Director of Engineering compensation in Washington: $180,000 – $340,000 (median $240,000). 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 John Oleinik?
John Oleinik has a verified email address on file on CTO Rank. They work at T-Mobile. Pro members can access direct email addresses, LinkedIn profiles, and phone numbers.
What company does John Oleinik work for?
John Oleinik is Director - Product & Engineering at T-Mobile, a company in the telecommunications industry with 70000 employees. The company is headquartered in Bellevue, Washington, United States.
What is John Oleinik's role in technology leadership?
John Oleinik is classified as a Director of Engineering leader at the director level.
What technologies does John Oleinik's organization use?
John Oleinik's organization uses a technology stack that includes Akamai, Akamai DNS, Outlook, Brightcove, Backbone JS Library, Drupal. This information is useful for sales teams, recruiters, and technology vendors.
Is John Oleinik open to recruiting or new opportunities?
CTO Rank does not track open-to-work status. The best approach is to reach out directly to John Oleinik using the verified contact information available to Pro members. When recruiting a Director - Product & Engineering, personalizing your outreach with specifics about the role and tech stack typically yields the best response rate.
Can I pitch or sell to John Oleinik at T-Mobile?
John Oleinik is Director - Product & Engineering at T-Mobile. Director of Engineerings like John Oleinik typically evaluate vendors in Akamai, Akamai DNS, Outlook, and related categories. Use CTO Rank Pro to get verified email and approach directly.
How accurate is John Oleinik's profile data?
CTO Rank verifies and refreshes profile data weekly. John Oleinik'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