Company Details
Technology Stack
Professional Summary
Andrey Efimov is Senior Director of Engineering at RingCentral. RingCentral operates in the information technology & services industry and has 4300 employees. Based in Sofia, Sofia City Province, Bulgaria. Classified as a director-level Director of Engineering leader. Their organization's technology stack includes Salesforce, Cloudflare DNS, Postmark, Outlook, Microsoft Office 365, and 71 other technologies. RingCentral reports annual revenue of 2428240000.
Position in the CTO Rank Database
- • Typical Director of Engineering compensation in Sofia City Province: $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
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Andrey Efimov has a verified email address on file on CTO Rank. They work at RingCentral. Pro members can access direct email addresses, LinkedIn profiles, and phone numbers.
What company does Andrey Efimov work for?
Andrey Efimov is Senior Director of Engineering at RingCentral, a company in the information technology & services industry with 4300 employees. The company is headquartered in Belmont, California, United States.
What is Andrey Efimov's role in technology leadership?
Andrey Efimov is classified as a Director of Engineering leader at the director level.
What technologies does Andrey Efimov's organization use?
Andrey Efimov's organization uses a technology stack that includes Salesforce, Cloudflare DNS, Postmark, Outlook, Microsoft Office 365, DemandBase. This information is useful for sales teams, recruiters, and technology vendors.
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Andrey Efimov is Senior Director of Engineering at RingCentral. Director of Engineerings like Andrey Efimov typically evaluate vendors in Salesforce, Cloudflare DNS, Postmark, and related categories. Use CTO Rank Pro to get verified email and approach directly.
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