Security Researcher Engineer (Node.js)

Location: Fully remote; work from any location worldwide. Listed locations include Sofia, Madrid, Bucharest, Lisbon, Prague, and Brasília.

Company

hirify.global is a remote-first company developing Linux infrastructure and security products for hosting providers, including the Imunify360 security suite.

What you will do

• Define and build a new runtime protection product for Node.js applications from the ground up.
• Own the product scope, interception model, customer-facing functionality, instrumentation strategy, deployment shape, and programming language.
• Lead research and end-to-end implementation, from initial investigation and architecture through release and production iteration.
• Use threat intelligence from monitored sites, malware samples, domain and URL reputation, and IP attack feeds to improve detection.
• Direct AI coding agents and use modern development infrastructure to accelerate delivery.
• Optimize runtime overhead, false positives, false negatives, and customer-escalation volume.

Requirements

• Experience building and shipping a new product, security solution, major feature, or technical system from scratch.
• End-to-end technical ownership covering investigation, architecture, implementation, release, and production iteration.
• Strong web application security knowledge and current practical exploitation expertise.
• Understanding of detection rules at scale and the ability to distinguish malicious behavior from unusual legitimate code.
• Ability to operate as product manager, architect, lead engineer, and QA for the product.
• Comfort directing AI coding agents toward high-quality output.

Nice to have

• Experience with runtime protection products, application firewalls, or instrumentation tooling.
• Malware analysis or incident response background.
• Familiarity with managed-hosting environments, Node.js, or the JavaScript ecosystem.
• Public security research, vulnerability disclosures, or authored detection rulesets.

Culture & Benefits

• Remote-first environment with flexible working hours and worldwide location flexibility.
• Professional development opportunities, education budget, and challenging technical projects.
• 24 paid vacation days, 10 national holidays, and unlimited sick leave.
• Private medical insurance, co-working reimbursement, and gym or sports reimbursement.
• Opportunity to receive a reward for an innovative idea that the company can patent.