Company Details
Technology Stack
Professional Summary
John Tierney is Director - Platform Engineering at CSG. CSG operates in the information technology & services industry and has 5800 employees. Based in Headford, County Galway, Ireland. Classified as a director-level Director of Engineering leader. Their organization's technology stack includes Microsoft Office 365, Google Cloud Hosting, VueJS, WP Engine, Citrix, and 3 other technologies. CSG reports annual revenue of 1201566000.
Position in the CTO Rank Database
- • Typical Director of Engineering compensation in County Galway: $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 Tierney?
John Tierney has a verified email address on file on CTO Rank. They work at CSG. Pro members can access direct email addresses, LinkedIn profiles, and phone numbers.
What company does John Tierney work for?
John Tierney is Director - Platform Engineering at CSG, a company in the information technology & services industry with 5800 employees. The company is headquartered in Greenwood Village, Colorado, United States.
What is John Tierney's role in technology leadership?
John Tierney is classified as a Director of Engineering leader at the director level.
What technologies does John Tierney's organization use?
John Tierney's organization uses a technology stack that includes Microsoft Office 365, Google Cloud Hosting, VueJS, WP Engine, Citrix, The Trade Desk. This information is useful for sales teams, recruiters, and technology vendors.
Is John Tierney 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 Tierney using the verified contact information available to Pro members. When recruiting a Director - Platform 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 Tierney at CSG?
John Tierney is Director - Platform Engineering at CSG. Director of Engineerings like John Tierney typically evaluate vendors in Microsoft Office 365, Google Cloud Hosting, VueJS, and related categories. Use CTO Rank Pro to get verified email and approach directly.
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