CloudLinux is a global remote?first company driven by our principles: do the right thing, employees first, we are remote first, and we deliver high?cost Linux infrastructure and security products that help companies to increase the efficiency of their operations. Imunify360 Security Suite

the maker of the #1 OS in security and stability for hosting providers. Imunify is an innovative security solution designed specifically for shared and VPS/Dedicated servers. layer approach to security delivers comprehensive and complete attack prevention.

We are building an engineering?heavy security platform for protecting WordPress and its plugin ecosystem. Senior Security Engineer

Automatically generate and validate exploit PoCs for known WordPress / PHP CVEs

Analyze PHP execution traces from real zero?day attacks against WordPress installations

not a traditional pentesting or red?Systems to ingest, normalize, and analyze PHP execution traces:

Function calls, parameters, control flow, side effects

No native binary reversing—focus is PHP?Convert CVE descriptions + PHP source code into working PoCs

Exploit mutation and robustness testing

admin?ajax.php

WordPress REST APIs





Strong background in security engineering or offensive security automation

Hands?on experience exploiting WordPress plugins, themes, or PHP applications

PHP execution model and request lifecycle

WordPress internals (nonces, hooks, REST, admin flows)

Proven ability to read, reason about, and exploit PHP source code

Strong Python engineering skills for building:

Analysis tooling

Contributions to exploit tooling, frameworks, or security automation

Manual pentesting or report?Your work directly shapes how real WordPress attacks are detected and stopped

What's in it for you?

A focus on professional development

Interesting and challenging projects

Fully remote work with versátil working hours, that allows you to schedule your day and work from any location worldwide

Paid 24 days of vacation per year, 10 days of national holidays, and unlimited sick leaves

Compensation for private medical insurance

Budget for education

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📌 Senior Security Engineer (Remote) (Valencia)
🏢 CloudLinux
📍 Valencia