Security Engineer / Staff Engineer

Imunify360 is a leading developer of Linux infrastructure and security solutions. Our flagship product, Imunify360, is a comprehensive security suite that protects thousands of shared hosting environments, VPS, and dedicated servers worldwide. Our clients include industry giants such as Dell, GoDaddy, IBM, and Zoom, with over 4,500 customers globally. The company has more than 250 employees.

We are looking for an engineer-architect to build a new product from scratch. This is not a position within an existing team—you will single-handedly create a runtime protection layer for Node.js applications. The hosting market is rapidly adopting Node.js, and modern applications are increasingly generated by users with AI tools and little technical security expertise. Your mission is to make protection automatic, transparent to client code, and effective in real time.

This is a role with the highest level of ownership (Senior / Staff / Architect level), where you will make key architectural decisions and take full responsibility for the outcome.

Responsibilities

• Define the technical approach for building runtime protection inside the Node.js process.
• Design the detection logic to identify and block attacks during application execution.
• Build and launch the first version of the product in real production environments.
• Ensure the protection works without req