Technology Operations Analyst - Cybersecurity Managed Services, New Brunswick

The opportunity

Ernst & Young is seeking junior and intermediate-level technical security professionals with hands-on expertise in Microsoft Sentinel and Microsoft Defender to support our Managed Detection and Response (MDR) services within a Security Operations Center (SOC) environment.

This role is designed for an experienced Tier 1 / Tier 2 SOC Analyst who performs threat detection, investigation, and response activities. The successful candidate will operate in a client-facing MSSP environment and will contribute directly to the quality, effectiveness, and continuous improvement of EY’s MDR services.

Your role at a glance 

Key responsibilities

Security Monitoring and Incident Response

• Perform security monitoring, triage, and investigation of alerts generated from Microsoft Sentinel and Microsoft Defender platforms using documented playbooks.
• Escalate confirmed or complex incidents, including suspected compromise, lateral movement, persistence mechanisms, and data exfiltration scenarios.
• Perform investigations using log analytics, endpoint telemetry, identity signals, and cloud-native audit logs.
• Validate, scope, and document security incidents, including root cause analysis and impact assessment.
• Assist with containment and recovery under senior guidance. 

Detection Engineering and Use Case Development

• Support tuning and maintenance of Sentinel analytics rules.
• Assist with false positive reduction and improving signal quality across Sentinel and Defender data sources.
• Document detection gaps
• Contribute to use case development under guidance to enhance detections, hunting queries, and alert enrichment. 

Threat Hunting

• Support threat hunting activities
• Identify anomalous or suspicious activity that may not trigger existing detections.
• Document hunting hypotheses, findings, and recommendations for detection improvements or control gaps.

Client Engagement and Technical Advisory

• Communicating incident findings clearly
• Participating in client calls when required
• Supporting onboarding and steady-state operations
• Support senior team members in identifying logging, configuration improvements.
• Support onboarding and steady-state operations for MDR clients within a managed services context.

Operational Excellence

• Contribute to playbooks and procedural improvements.
• Participate in knowledge sharing and case reviews.
• Assist with service quality improvements, detection maturity, and operational consistency across clients.
• Ensure investigations and responses align with applicable regulatory, contractual, and evidentiary requirements.

Skills and attributes for success

• Proven experience operating in a SOC or MSSP environment at a Tier 1 or Tier 2 level.
• Hands-on expertise with Microsoft Sentinel, including analytics rules, KQL, workbooks, and incident investigations.
• Experience with Microsoft Defender technologies, including Defender for Endpoint and identity-related signals.
• Exposure to investigations across cloud, endpoint, and identity domains.
• Working understanding of attack techniques, threat actor behaviors, and incident response methodologies.
• Ability to manage multiple investigations simultaneously while maintaining investigation quality and documentation.
• Strong written and verbal communication skills, with the ability to explain technical findings to security-focused audiences.
• Proficiency in French, including Quebec French, is desired for client‑facing engagements.

Qualifications 

• Bachelor's degree in computer science, Information Technology, Cybersecurity, or a related discipline.
• Relevant certifications such as: Microsoft Certified: Azure Security Engineer Associate, Microsoft Sentinel specialization
• CISSP, GCED, GCIA, or similar (preferred, not required)
• Minimum 1-2 years of experience in cybersecurity operations, with significant time spent in incident response and security monitoring roles.
• Prior experience in a client-facing or managed services environment is strongly preferred
• We currently have opportunities in our Dieppe office for full-time evening, overnight and weekend work. 

What we offer

When you thrive, we thrive. The EY benefits package goes above and beyond, focusing on your physical, emotional, financial and social well-being: 

• $5,000 per year for mental health support benefits 
• Wellbeing benefit of $1,200/year

Explore how a career at EY is yours to build at  https://www.ey.com/en_ca/careers/personalized-career-development 

Discover how, when and where you can work at https://www.ey.com/en_ca/careers/flexibility-mobility  

EY reports salary ranges in accordance with applicable provincial pay transparency legislation. Individual salaries within the anticipated salary ranges noted below are determined through a wide variety of factors including but not limited to internal equity, education, relevant experience, knowledge, and applicable skill sets.

• Dieppe, New Brunswick: $48,000 to $72,000

Are you ready to shape your future with confidence? Apply today.

To help create the best experience during the recruitment process, please describe any accommodations you may need.

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Learn about our commitment to Inclusiveness at https://www.ey.com/en_ca/about-us/corporate-responsibility/equity 

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