Back to jobs
Lumentum logo

Lumentum

Senior IT Security Analyst

🗓️ Posted 2026-08-20 Towcester, England, United Kingdom Full-time Hybrid ICT

Company shared salary

NA

Market rate

4,500 GBP–6,000 GBP/mo (54,000 GBP–72,000 GBP/yr)

Based on similar roles (title + domain + location).

About the Company

It's fun to work in a company where people truly BELIEVE in what they're doing We're committed to bringing passion and customer focus to the business. If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us Senior Information Security Analyst Location: Caswell, Northamptonshire, UK Employment Type: Full-time Shape the future of cyber security at Lumentum 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.

Responsibilities

  • ● 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 across the organisation.
  • ● Provide security assurance for new projects and technology changes, helping embed 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 that support informed business decisions.
  • ● Security Operations, Security Incident Response or Security Engineering.
  • ● Security Information and Event Management (SIEM) and Endpoint Detection & Response (EDR) technologies.
  • ● Identity and Access Management, including MFA, Conditional Access and Privileged Access.
  • ● Data Loss Prevention (DLP) technologies and policy management.
  • ● Vulnerability Management and security hardening.
  • ● Security architecture reviews and technical assurance.
  • ● Threat detection, investigation and root cause analysis.
  • ● Security automation, scripting or workflow improvement.

Requirements

  • ● Has significant experience within cyber security, information security or security operations.
  • ● Enjoys leading investigations and solving complex technical challenges.
  • ● Can influence stakeholders at all levels with clear, confident communication.
  • ● Thinks strategically while remaining hands-on.
  • ● Takes ownership and is driven by continuous improvement.
  • ● Builds strong relationships and enjoys developing others.
  • ● The opportunity to influence enterprise-wide cyber security.
  • ● Exposure to modern cloud and security technologies.
  • ● A collaborative and supportive team environment.
  • ● Ongoing professional development and learning opportunities.
  • ● The chance to make a genuine impact protecting critical business services.