Security Developer/Researcher

Summary

Join CloudLinux, a global remote-first company, as a Security Developer/Researcher on the ELS team! You will be responsible for analyzing vulnerabilities and threats in open-source PHP and JavaScript applications, backporting patches, building internal tooling, researching exploitation techniques, and expanding support coverage. This role requires 3+ years of relevant experience, good knowledge of JavaScript and PHP (or one of them), experience with Python, and familiarity with Docker and Docker Compose. Your work will directly impact the safety of millions of developers. We offer a fully remote position with flexible hours, paid vacation and holidays, medical insurance, and professional development opportunities.

Requirements

• Good knowledge of JavaScript and PHP, or with one of them
• Experience with a scripting language such as Python
• 3+ years of relevant experience as a Software Engineer in Test, Security Researcher, or a similar role
• Hands-on experience in researching vulnerabilities within JavaScript and/or PHP applications
• Familiarity with Docker and Docker Compose
• Upper-intermediate or higher level of English

Responsibilities

• Analyzing new security vulnerabilities in open-source PHP and JavaScript applications and frameworks (e.g., WordPress, Angular, Node.js, Drupal)
• Backporting upstream patches to fix vulnerabilities in earlier versions
• Designing, building, and deploying new features for our internal tooling to automate workflows
• Researching new trends in exploitation techniques and malware approaches and developing mitigation strategies
• Increasing the coverage of supported PHP and JS applications and plugins

Preferred Qualifications

• Understanding and knowledge of the security vulnerabilities life cycle is a plus
• Good Linux knowledge

Benefits

• A focus on professional development
• Interesting and challenging projects
• Fully remote work with flexible working hours, that allows you to schedule your day and work from any location worldwide
• Paid 24 days of vacation per year, 10 days of national holidays, and unlimited sick leaves
• Compensation for private medical insurance
• Co-working and gym/sports reimbursement
• Budget for education
• The opportunity to receive a reward for the most innovative idea that the company can patent