Company Details
Technology Stack
Professional Summary
Mark Callahan is Head of Engineering at BreatheSuite. BreatheSuite operates in the medical devices industry and has 23 employees. Based in St. John's, Newfoundland and Labrador, Canada. Classified as a head-level Head of Engineering leader. Their organization's technology stack includes Route 53, Gmail, Google Apps, Google Cloud Hosting, Wix, and 15 other technologies. BreatheSuite has raised 2698808 in total funding.
Position in the CTO Rank Database
- • Typical Head of Engineering compensation in Newfoundland and Labrador: $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 June 2026.
Frequently Asked Questions
How do I contact Mark Callahan?
Mark Callahan has a verified email address on file on CTO Rank. They work at BreatheSuite. Pro members can access direct email addresses, LinkedIn profiles, and phone numbers.
What company does Mark Callahan work for?
Mark Callahan is Head of Engineering at BreatheSuite, a company in the medical devices industry with 23 employees. The company is headquartered in Saint John's, Newfoundland and Labrador, Canada.
What is Mark Callahan's role in technology leadership?
Mark Callahan is classified as a Head of Engineering leader at the head level.
What technologies does Mark Callahan's organization use?
Mark Callahan's organization uses a technology stack that includes Route 53, Gmail, Google Apps, Google Cloud Hosting, Wix, DoubleClick. This information is useful for sales teams, recruiters, and technology vendors.
Is Mark Callahan open to recruiting or new opportunities?
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Can I pitch or sell to Mark Callahan at BreatheSuite?
Mark Callahan is Head of Engineering at BreatheSuite. Head of Engineerings like Mark Callahan typically evaluate vendors in Route 53, Gmail, Google Apps, and related categories. Use CTO Rank Pro to get verified email and approach directly.
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