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Senior IT Security Analyst
Lumentum
Ottawa, CAN
Full Time
Senior
Onsite
Today
SIEMEDRDLPMFAVulnerability ManagementIncident Response
Free
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SIEMEDRDLP
About the Role
Lumentum seeks a Senior IT Security Analyst to lead complex security investigations, improve security controls, and advise on cyber risk. The role requires 5+ years in cyber security operations, expertise in SIEM, EDR, DLP, MFA, and vulnerability management, and relevant certifications like CISSP or CISM.
Key Skills for This Role
SIEMEDRDLPMFAVulnerability ManagementIncident Response
Responsibilities
- Lead complex security investigations across endpoint, network, identity, email, cloud and application data sources
- Define triage criteria, alert handling standards, escalation paths and quality checks for security operations
- Coordinate response to significant cyber security incidents in line with incident management process
- Lead technical analysis for malware, phishing, credential compromise, insider risk, data exposure, privilege misuse and suspicious network activity
- Produce post incident reviews and track corrective actions through to closure
- Translate technical findings into risk statements, control weaknesses and prioritised remediation plans
- Own or act as technical lead for Data Loss Prevention (DLP) monitoring, rule tuning, alert quality, exception handling and escalation
- Own or act as technical lead for Multi Factor Authentication (MFA) control performance, exception governance, break glass account checks, privileged access enforcement and conditional access design
- Lead vulnerability prioritisation using exploitability, asset criticality, exposure and business impact
- Review proposed changes, projects and new services for security risks and control requirements
- Produce clear management information on incidents, vulnerabilities, DLP, MFA, control exceptions, detection coverage and remediation performance
- Coach colleagues on investigation quality, evidence standards, tooling, communication and risk based decision making
Requirements
- Typically five or more years in cyber security operations, incident response, security engineering, assurance, infrastructure security or comparable environment
- Experience leading complex investigations, coordinating stakeholders, improving controls and presenting risk based recommendations
- Relevant professional certification (CISSP, CISM, CISA) is desirable
- Degree in cyber security, information security, computer science or related discipline is desirable
Full Job Posting
Position Overview
- The postholder provides advanced technical security analysis, leads complex investigations, improves the maturity of security controls and advises stakeholders on cyber risk.
Key Responsibilities
- Security operations leadership: Lead complex security investigations across endpoint, network, identity, email, cloud and application data sources.
- Define triage criteria, alert handling standards, escalation paths and quality checks for security operations.
- Review high impact alerts and incidents, ensure proportional response and remove barriers to containment and remediation.
- Develop and improve detection logic, playbooks, dashboards and operational procedures.
- Incident response leadership: Coordinate response to significant cyber security incidents.
- Lead technical analysis for malware, phishing, credential compromise, insider risk, data exposure, privilege misuse and suspicious network activity.
- Ensure evidence handling, incident timelines, decisions, lessons learned and remediation actions are complete and auditable.
- Produce post incident reviews and track corrective actions through to closure.
- Risk, governance and assurance: Translate technical findings into risk statements, control weaknesses and prioritised remediation plans.
- Support risk assessment, risk acceptance, audit and assurance activity.
- Advise on relevant information security legislation.
- Contribute to security standards, control testing, supplier assurance and management reporting.
Education and Experience
- Relevant professional certification is desirable (CISSP, CISM, CISA or equivalent).
- A degree, apprenticeship or professional training in cyber security, information security, computer science or a related discipline is desirable.
- Typically five or more years in cyber security operations, incident response, security engineering, assurance, infrastructure security or comparable environment.
- Experience leading complex investigations, coordinating stakeholders, improving controls and presenting risk based recommendations.
Essential Technical Skills
- Advanced security investigation using SIEM, EDR, endpoint protection, identity, email, web, network and cloud data.
- Strong DLP policy design, tuning, investigation and exception management.
- Strong MFA implementation, exception governance, conditional access and privileged access control.
- Vulnerability management, secure configuration assessment and remediation prioritisation.
- Incident command, evidence handling, root cause analysis and post incident review.
- Security architecture assurance for identity, endpoint, network, cloud, application and data protection controls.
- Detection engineering and automation using scripts, queries or workflow tools.
- Understanding of control frameworks (NCSC CAF, NIST CSF, CIS Critical Security Controls, ISO/IEC 27001).
Perks You’ll Love
- Flexible time off
- Health and wellness benefits (physical and mental)
- Tuition reimbursement and career growth support
- Free gym, games room, prayer room
- Subsidized meals, free coffee/tea
- Employee stock options and incentive plans
- Collaborative, innovative, and inclusive culture
Salary Range
- CAD 80,000 CAD 115,000 CAD (flexible). Final compensation based on experience, skills, and qualifications.
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