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Yannis Lionis

Engineering Manager at Klaviyo

Engineering Manager Manager
y***@klaviyo.com Sign up
Pro only
Pro only
Pro only
United Kingdom
klaviyo.com

Company Details

Company: Klaviyo
Industry: marketing & advertising
Employees: 2400
Revenue: 1007298000
HQ Location: Boston, Massachusetts, United States
Company LinkedIn: Pro only

Technology Stack

CloudFlare CDN Salesforce Route 53 Gmail Google Apps Microsoft Office 365 Greenhouse.io Zendesk Amazon AWS CloudFlare Hosting VueJS Sage Intacct Pantheon WP Engine Atlassian Cloud Drift OneTrust Webflow Linkedin Marketing Solutions Scene7

Professional Summary

Yannis Lionis is Engineering Manager at Klaviyo. Klaviyo operates in the marketing & advertising industry and has 2400 employees. Based in United Kingdom. Classified as a manager-level Engineering Manager leader. Their organization's technology stack includes CloudFlare CDN, Salesforce, Route 53, Gmail, Google Apps, and 86 other technologies. Klaviyo reports annual revenue of 1007298000.

Manager level · Engineering Manager
Verified Apr 25, 2026

Position in the CTO Rank Database

  • • Typical Engineering Manager compensation: $150,000 – $280,000 (median $200,000). 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 Yannis Lionis?

Yannis Lionis has a verified email address on file on CTO Rank. They work at Klaviyo. Pro members can access direct email addresses, LinkedIn profiles, and phone numbers.

What company does Yannis Lionis work for?

Yannis Lionis is Engineering Manager at Klaviyo, a company in the marketing & advertising industry with 2400 employees. The company is headquartered in Boston, Massachusetts, United States.

What is Yannis Lionis's role in technology leadership?

Yannis Lionis is classified as a Engineering Manager leader at the manager level.

What technologies does Yannis Lionis's organization use?

Yannis Lionis's organization uses a technology stack that includes CloudFlare CDN, Salesforce, Route 53, Gmail, Google Apps, Microsoft Office 365. This information is useful for sales teams, recruiters, and technology vendors.

Is Yannis Lionis open to recruiting or new opportunities?

CTO Rank does not track open-to-work status. The best approach is to reach out directly to Yannis Lionis using the verified contact information available to Pro members. When recruiting a Engineering Manager, personalizing your outreach with specifics about the role and tech stack typically yields the best response rate.

Can I pitch or sell to Yannis Lionis at Klaviyo?

Yannis Lionis is Engineering Manager at Klaviyo. Engineering Managers like Yannis Lionis typically evaluate vendors in CloudFlare CDN, Salesforce, Route 53, and related categories. Use CTO Rank Pro to get verified email and approach directly.

How accurate is Yannis Lionis's profile data?

CTO Rank verifies and refreshes profile data weekly. Yannis Lionis's profile includes verified contact details, company information, and technology stack data sourced from multiple public and proprietary sources.