At Lumentum, we develop the technologies that power the world''s most advanced communications, industrial and cloud infrastructure. Security is fundamental to everything we do, and we''re looking for an experienced Senior Information Security Analyst to help protect our people, data and global operations. This is an opportunity to join a collaborative cyber security team where you''ll lead complex investigations, strengthen security controls and influence how we defend against an evolving threat landscape. You''ll work across cloud, identity, endpoint, network and data security while partnering with technical and business teams to continuously improve our security capability. If you enjoy solving challenging security problems, mentoring others and driving meaningful improvements, we''d love to hear from you. What you''ll be doing As a senior member of our Information Security team, you''ll: Lead the investigation and response to complex cyber security incidents across cloud, endpoint, identity, network, email and application environments. Drive improvements to our Security Operations capability through enhanced detections, playbooks, automation and operational processes. Own and enhance key security controls, including Data Loss Prevention (DLP) and Multi-Factor Authentication (MFA), ensuring they remain effective, measurable and aligned with business needs. Assess vulnerabilities, prioritise remediation activities and work with technology teams to reduce cyber risk ..... full job details .....