Node.js Proactive Runtime Security Engineer (Remote)

CloudLinux; Madrid; Presencial; EUR 90.000 - 150.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Fully remote work with flexible hours

34 vacation days per year (24 vacation

Private medical insurance

Co-working and gym reimbursement

Education budget

Patent reward program

Descripción de la vacante

CloudLinux is a global remote-first company delivering high-volume, low-cost Linux infrastructure and security products. We are building a brand-new runtime protection layer for Node.js, enabling protection inside the Node.js process itself.

You will own the product, define the technical approach, and implement end-to-end with modern tooling and AI-assisted workflows. You will lead research and development, determining what to intercept, how to deploy, and what the customer-visible surface looks

Formación

• Familiarity with the Node.js runtime and the JavaScript ecosystem.
• Strong web application security fundamentals and current knowledge of practical exploitation.
• A working sense of how detection rules behave at scale — balancing false positives and true positives.
• Ability to start as PM, architect, lead engineer, and QA for this product; proactive, resourceful.

Responsabilidades

• Define the product surface and runtime protection layer for Node.js environments.
• Design and implement instrumentation, deployment shape, and language choices.
• Build end-to-end tooling with provided infrastructure and AI assistants to accelerate delivery.
• Establish a rigorous approach to detection conviction and performance measurement.
• Collaborate across teams to integrate threat intelligence into the product.

Conocimientos

Node.js runtime

JavaScript ecosystem

Web application security

Detection logic at scale

Product management

Architectural leadership

Hands-on development

Educación

Bachelor's degree or equivalent

Herramientas

AI coding agents

Instrumentation tooling

Descripción del empleo

CloudLinux is a global remote-first company delivering high-volume, low-cost Linux infrastructure and security products. We are building a brand-new runtime protection layer for Node.js, enabling protection inside the Node.js process itself.

You will own the product, define the technical approach, and implement end-to-end with modern tooling and AI-assisted workflows. You will lead research and development, determining what to intercept, how to deploy, and what the customer-visible surface looks