Senior InfoSec Analyst: Incident Response & Security Ops

Lumentum; Towcester; On-site; GBP 70,000 - 100,000; Full time

Job summary

Lumentum seeks a Senior Information Security Analyst to safeguard people, data and global operations. You will lead investigations and strengthen security controls across cloud, identity, endpoint, network and data security, partnering with teams to continuously improve security capability.

You will mentor colleagues, translate complex issues into practical guidance, and drive security by design on new projects in a global technology leader.

Qualifications

• Experience in cyber security, information security or security operations.
• Leading investigations and solving complex technical challenges.
• Clear, confident communication with stakeholders.
• Thinks strategically while remaining hands-on.
• Takes ownership and is driven by continuous improvement.
• Builds strong relationships and enjoys developing others.

Responsibilities

• Lead investigations and respond to complex cyber security incidents across cloud, endpoint, identity, network, email and application environments.
• Drive improvements to Security Operations through detections, playbooks, automation and operational processes.
• Own and enhance key security controls, including Data Loss Prevention (DLP) and Multi-Factor Authentication (MFA).
• Assess vulnerabilities, prioritise remediation activities and work with technology teams to reduce cyber risk.
• Provide security assurance for new projects and technology changes, embedding security by design.
• Produce meaningful security metrics and reporting for technical and business stakeholders.
• Coach and mentor colleagues, sharing knowledge and raising security capability across the organisation.
• Translate complex technical issues into clear, practical recommendations for informed business decisions.

Job description

Lumentum seeks a Senior Information Security Analyst to safeguard people, data and global operations. You will lead investigations and strengthen security controls across cloud, identity, endpoint, network and data security, partnering with teams to continuously improve security capability.

You will mentor colleagues, translate complex issues into practical guidance, and drive security by design on new projects in a global technology leader.