Lead Security Engineer - Vulnerability Response (Imunify360)

CloudLinux is a global remote-first company. We are driven by our principles: do the right thing, employees first, we are remote first, and we deliver high-volume, low-cost Linux infrastructure and security products that help companies to increase the efficiency of their operations. Every person on our team supports each other and does what we can to ensure we all are successful. 

Check out our website for more information: cloudlinux.com

Imunify360 Security Suite is an innovative security solution designed specifically for shared and VPS/Dedicated servers. The automated, easy-to-use solution with the six-layer approach to security delivers comprehensive and complete attack prevention.

We are looking for a Lead Security Engineer - Vulnerability Response to join our Web Protection Team.

The challenge ahead

When a critical vulnerability in a popular web application or WordPress plugin goes public, attackers start exploiting it within hours. Most site owners can't patch that fast. We want our customers protected before the first attack reaches them, and we want them to know it.

That's the challenge we're hiring for:

• AI-driven vulnerability response. Build and run a pipeline that detects new high and critical vulnerabilities, generates WAF rules with AI assistance, validates them, and ships them to production in a short window.
• Protection plus public announcement, both automated. The same pipeline that ships the rule also produces the public advisory. Every critical vulnerability we cover is announced soon after the rule ships, so customers and the market see that Imunify closed it first.
• Build on what works. An AI-assisted pipeline already runs for our WordPress protection plugin. The first big project is to extend this approach to ModSecurity/Coraza WAF rules.
• Speed without breaking sites. On shared hosting, a rule that blocks legitimate traffic is a customer incident. Fast and precise both matter.
• Make it measurable. Time-to-protection, coverage of critical vulnerabilities, and false-positive rate are the numbers this role owns.

About the role

You will own the vulnerability response pipeline end to end and be its main builder. You combine deep web application security expertise with strong automation skills, and you think about the product: what customers need, what to measure, what to build next. You'll lead a small team of security analysts and work closely with automation, QA, and marketing.

What you'll do

• Design and build the AI-driven pipeline from disclosure to announcement: vulnerability intake, triage, rule drafting, testing, release, and the public advisory.
• Lead the extension of our existing WordPress-plugin pipeline to ModSecurity/Coraza rules.
• Write and review WAF rules (ModSecurity/SecLang) for real-world web vulnerabilities.
• Build test harnesses that check rules against exploits and real traffic before release.
• Lead and mentor security analysts: set priorities, review their work, remove blockers.
• Define and track time-to-protection, coverage, and false-positive rate, and improve them.
• Automate advisory generation as part of the pipeline, and agree the format and review flow with marketing.