security engineer

CloudLinux provides Linux infrastructure and security products designed to improve operational efficiency for hosting providers. The company develops the Imunify360 Security Suite, an automated, multi-layered security solution for shared, VPS, and dedicated servers that offers comprehensive attack prevention.

• Build a runtime protection layer for Node.js end-to-end;
• Define the product scope, including interception logic and customer-facing features;
• Determine the technical approach, including instrumentation strategy and deployment architecture;
• Implement the product from end to end using provided tooling and infrastructure;
• Establish methodology for building conviction in detection logic;
• Integrate cross-layer threat intelligence signals from existing security stacks;
• Manage product performance metrics including runtime overhead, false positives, false negatives, and customer-escalation volume.

• Familiarity with the Node.js runtime and the JavaScript ecosystem;
• Strong web application security fundamentals and current knowledge of practical exploitation;
• Experience with detection rules at scale;
• Ability to act as PM, architect, lead engineer, and QA for the product;
• Nice to have: Comfort directing AI coding agents, prior work on runtime-protection products, application firewalls, or instrumentation tooling, background in malware analysis or incident response, familiarity with managed-hosting environments, public security research, vulnerability disclosures, or authored detection rulesets.

• Paid 24 days of vacation per year;
• 10 Days of national holidays;
• Unlimited sick leaves;
• Compensation for private medical insurance;
• Co-working and gym/sports reimbursement;
• Budget for education;
• Opportunity to receive a reward for innovative ideas that the company can patent.