This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Security Developer based in Spain. Join a globally distributed team dedicated to strengthening the security of one of the world's most widely used programming ecosystems. In this role, you will help protect open-source software by coordinating vulnerability remediation, responding to security incidents, and improving secure development practices. You'll collaborate with experienced engineers and security specialists to address emerging threats, enhance security infrastructure, and develop tools that improve response capabilities. The position offers a unique combination of hands-on security engineering, software development, technical research, and community collaboration. You'll contribute to initiatives that have a direct impact on developers and organizations worldwide while continuously expanding your expertise in application and supply chain security. This is an excellent opportunity for a security-minded developer passionate about open source and secure software development.