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John O'Brien

Senior Director Engineering at SI Group

Director of Engineering Director
j***@siigroup.com Sign up
Pro only
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Four Ashes, England, United Kingdom
siigroup.com

Company Details

Company: SI Group
Industry: chemicals
Employees: 1800
Revenue: 1400000000
Company LinkedIn: Pro only

Technology Stack

Outlook Oracle Cloud WordPress.org Vimeo reCAPTCHA AddThis Google Analytics Google Font API Typekit Adobe Media Optimizer Cedexis Radar Hubspot DoubleClick Google Tag Manager Mobile Friendly Linkedin Marketing Solutions Google Maps Remote

Professional Summary

John O'Brien is Senior Director Engineering at SI Group. SI Group operates in the chemicals industry and has 1800 employees. Based in Four Ashes, England, United Kingdom. Classified as a director-level Director of Engineering leader. Their organization's technology stack includes Outlook, Oracle Cloud, WordPress.org, Vimeo, reCAPTCHA, and 13 other technologies. SI Group reports annual revenue of 1400000000.

Director level · Director of Engineering
Verified Apr 24, 2026

Position in the CTO Rank Database

  • • Typical Director of Engineering compensation in England: $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 O'Brien?

John O'Brien has a verified email address on file on CTO Rank. They work at SI Group. Pro members can access direct email addresses, LinkedIn profiles, and phone numbers.

What company does John O'Brien work for?

John O'Brien is Senior Director Engineering at SI Group, a company in the chemicals industry with 1800 employees.

What is John O'Brien's role in technology leadership?

John O'Brien is classified as a Director of Engineering leader at the director level.

What technologies does John O'Brien's organization use?

John O'Brien's organization uses a technology stack that includes Outlook, Oracle Cloud, WordPress.org, Vimeo, reCAPTCHA, AddThis. This information is useful for sales teams, recruiters, and technology vendors.

Is John O'Brien 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 O'Brien using the verified contact information available to Pro members. When recruiting a Senior Director 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 O'Brien at SI Group?

John O'Brien is Senior Director Engineering at SI Group. Director of Engineerings like John O'Brien typically evaluate vendors in Outlook, Oracle Cloud, WordPress.org, and related categories. Use CTO Rank Pro to get verified email and approach directly.

How accurate is John O'Brien's profile data?

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