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Senior Security Engineer (Python, WordPress & PHP) (remote-only, Europe)

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.

Imunify360 Security Suite is a product of CloudLinux Inc., 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. The automated, easy-to-use solution with the six-layer approach to security delivers comprehensive and complete attack prevention.

Check out our website for more information about our Imunify360 Product https://www.imunify360.com/

We are building an engineering-heavy security platform for protecting WordPress and its plugin ecosystem. The core challenge is turning real attacker behavior into automated, repeatable systems that scale.

We are looking for a Senior Security Engineer who understands exploitation deeply but prefers building tooling and automation over one-off research. You will work on systems that:

  1. Automatically generate and validate exploit PoCs for known WordPress / PHP CVEs
  2. Analyze PHP execution traces from real zero-day attacks against WordPress installations

LLMs are a first-class component of this work—not a novelty—used to accelerate exploit reconstruction, PoC generation, and attack workflow automation.

This is an engineering role with offensive depth , not a traditional pentesting or red-team position.

What You’ll Build

  • Systems to ingest, normalize, and analyze PHP execution traces:
  • Tooling that infers:
  • Automated pipelines that:
  • LLM-assisted frameworks for:
  • High-fidelity exploit simulations targeting:
  • Infrastructure that transforms exploit mechanics into signals usable by detection and prevention systems.

About CloudLinux

CloudLinux is on a mission to make Linux secure, stable, and profitable, with over 500,000 product installations and 4,000 customers, including Liquid Web, 1&1, and Dell.
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