Senior Cyber Security Analyst - Incident Response & Cloud

Lumentum Operations; Towcester; On-site; GBP 33,000 - 73,000; Full time

Job summary

Lumentum Operations is seeking a Senior Information Security Analyst to help protect our people, data and global operations from cyber threats across cloud, identity, endpoint, network and data security. This full-time role offers a collaborative cyber security team, exposure to modern cloud technologies and opportunities to influence enterprise-wide security in a global organisation.

We provide ongoing professional development, a supportive team environment and a focus on continuous learning

Qualifications

• Significant experience in cyber security, information security or security operations.
• Experience in security operations, incident response or security engineering.
• Experience with SIEM and EDR technologies.
• Experience with IAM, MFA, and Conditional Access.
• Experience with DLP technologies and policy management.
• Experience in vulnerability management and security hardening.
• Experience in security architecture reviews and technical assurance.
• Experience in threat detection, investigation and root cause analysis.
• Experience in security automation, scripting or workflow improvement.
• Familiarity with frameworks such as NIST CSF, ISO 27001, CIS Controls or NCSC CAF.
• Certifications such as CISSP, CISM or CISA are desirable but not essential.

Responsibilities

• Lead the investigation and response to complex cyber security incidents across cloud, endpoint, identity, network, email and applications.
• Drive improvements to Security Operations through detections, playbooks, automation and processes.
• Own and enhance security controls like DLP and MFA, ensuring they remain effective and measurable.
• Assess vulnerabilities and coordinate remediation with technology teams to reduce risk.
• Provide security assurance for new projects and embed security by design.
• Produce meaningful security metrics and reporting for stakeholders.
• Coach and mentor colleagues to raise security capability across the organisation.
• Translate complex technical issues into clear, practical recommendations for business decisions.

Skills

Cyber security experience

Security operations

SIEM

EDR

IAM (MFA)

DLP technologies

Vulnerability management

Security architecture reviews

Threat detection & root cause analysis

Security automation / scripting

Industry frameworks (NIST CSF, ISO 270

Tools

SIEM

EDR

Job description

Lumentum Operations is seeking a Senior Information Security Analyst to help protect our people, data and global operations from cyber threats across cloud, identity, endpoint, network and data security. This full-time role offers a collaborative cyber security team, exposure to modern cloud technologies and opportunities to influence enterprise-wide security in a global organisation.

We provide ongoing professional development, a supportive team environment and a focus on continuous learning