CloudLinux is a general 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.

The mission

Node.js is the segment of the hosting market growing fastest, and the next layer we want to build for it is runtime protection inside the Node.js process itself. Most Node.js workloads on managed hosting today are AI-generated web apps deployed by non-technical owners who can't, won't,



and shouldn't be expected to patch their own code or audit their own dependencies. We're going to defend those apps anyway — at runtime, without their cooperation, without breaking them.

You'll build that runtime protection layer end-to-end.

What you'll own
- The product. A brand-new product line, yours to define — what we intercept, what we don't, what the customer-visible surface looks like.
- The technical approach. Instrumentation strategy, deployment shape, programming language — all open. You'll consult with our architects but the direction is yours.
- Implementation, end to end. You'll have the full tooling stack we provide — LLM subscriptions, modern dev infrastructure, the works. Use what makes you fast.
- Methodology. How you build conviction in your detection logic — your call.
- Cross-layer signal. Our existing stack produces threat intelligence at unmatched scale: tens of millions of monitored sites, petabyte-scale malwar

📌 Security Engineer (Madrid)
🏢 CloudLinux
📍 Madrid