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Added 8 hours ago
Senior Information Security Analyst - IAM/CyberArk Administrator
TD
Toronto, ON
Full-time
…regulatory risk and compliance requirements, managing systems and network complexity, and partnering with businesses for better technology delivery by providing advice on technology…
Added 15 hours ago
Senior IT Support Analyst
TD
Toronto, ON
Full-time
We are seeking a Senior IT Support Analyst to provide high-touch, time-sensitive technical support to TD Securities Global Markets, Trading, Sales, Research, and front-office clients in…
Added 18 hours ago
Senior Business Analyst
Fraser Health
Surrey, BC
Full-time
The Health Informatics – Clinical Ancillary Services portfolio has a permanent Full-time Senior Business Analyst position available to support our Surgery, Anesthesia, and Medical Device…
Added 20 hours ago
Specialist / Senior Specialist / Lead Specialist - Plant Maintenance Support (Refinery)
Parkland Corporation
Burnaby, BC
Full-time
…Greater Caribbean, and Europe. The Partnership’s midstream operations include an extensive network of approximately 14,000 miles of pipeline and over 160 terminals. This critical…
Added 20 hours ago
Specialist / Senior Specialist / Lead Specialist - Plant Maintenance Support (Refinery)
Parkland Corporation
Burnaby, BC
Full-time
…Greater Caribbean, and Europe. The Partnership’s midstream operations include an extensive network of approximately 14,000 miles of pipeline and over 160 terminals. This critical…
Added 21 hours ago
Senior Analyst, Customer Performance, Brand-1
Mastercard
Toronto, ON
Full-time
Senior Analyst, Customer Performance, Brand-1Overview
Added 23 hours ago
Director HR Employee Service Centre
Extendicare
Markham, ON
Full-time
Reporting to the Vice President, HR Operations, the Director, Employee Service Centre (ESC) is accountable for the strategic design, operational performance, and continuous improvement of…
Added 23 hours ago
Incident Management Specialist
Odyssey Global
Quebec, QC
Contract
Three or more years in IT service management, service desk, network or systems operations, with direct exposure to major incident handling.
Added 1 day ago
Network Edge Specialist
Sanya’k̓ula
Burnaby, BC
Full-time
Reporting to the Corporate Manager, Network Services of the Information Management/Information Technology (IM/IT) within the Provincial Health Services Authority (PHSA), the Network/Telecom…
Added 1 day ago
Senior Business System Analyst (Insurance & Technology)
BMO
Toronto, ON · YNG
Full-time
Investigates and identifies strategies to optimize business operations and services, and inform business decisions. Defines business requirements to inform technology build and operations…
Added 1 day ago
Technical Specialist, Applications
Scarborough Health Network
EO Head Office
Full-time
Epic Technical and Senior Technical Specialists are responsible for ongoing maintenance and operations of their assigned applications including triaging and prioritizing issues,…
Added 1 day ago
Senior Go to Market Analyst, Ecosystem Integration
Payments Canada
Ottawa, ON · Toronto, ON
The Senior Go to Market Analyst, Ecosystem Integration is responsible for supporting the operational market readiness, adoption, and scale of the Real-Time Rail infrastructure and ongoing…
Added 1 day ago
Network Edge Specialist
Provincial Health Services Authority
Burnaby, BC
Full-time
Reporting to the Corporate Manager, Network Services of the Information Management/Information Technology (IM/IT) within the Provincial Health Services Authority (PHSA), the Network/Telecom…
Added 1 day ago
Senior Hybrid Cloud Infrastructure Analyst
Affinity Credit Union
Regina, SK · Saskatoon, SK
We’re looking for a Senior Hybrid Cloud Infrastructure Analyst to join our IT team. You’ll be responsible for the research, design, implementation, optimization, and administration of the…
Added 1 day ago
Senior Analyst, Payor Performance
Loblaw Companies Limited
Toronto, ON
Full-time
Reporting directly to the Senior Manager, Payor Performance, this role will support the overall departmental goal of protecting and enhancing pharmacy revenues and margins via the…
Added 1 day ago
Sr. Tech. Strategy Analyst
Rogers Communications
Toronto, ON
The Senior Technology Strategy Analyst will be responsible for supporting Technology Strategy in all aspects of long-term strategic planning initiatives. This role involves developing and…
Added 1 day ago
IT Senior Analyst, Cybersecurity
Saputo Inc.
Montreal, QC · Mississauga, ON · Georgetown, ON
Full-time
…skills. We are seeking talent to fill the position of Security Senior Analyst at our locations in Montreal, QC, or Georgetown,…
Added 1 day ago
IT Senior Analyst, Cybersecurity
Saputo Inc.
Bas-Saint-Laurent, QC
Full-time
…skills. We are seeking talent to fill the position of Security Senior Analyst at our locations in Montreal, QC, or Georgetown,…
Added 1 day ago
IT Senior Analyst, Cybersecurity
Saputo Inc.
Mississauga, ON
Full-time
…skills. We are seeking talent to fill the position of Security Senior Analyst at our locations in Montreal, QC, or Georgetown,…
Added 1 day ago
Senior Solution Analyst
Nutrien
Saskatoon, SK
Full-time
As a Senior Solution Analyst, you will work with business stakeholders, vendors, and technical teams to identify opportunities, define requirements, and support the delivery and sustainment…
Added 1 day ago
Field Support Specialist (FSS)
Sysco Canada Inc.
Toronto, ON · Greater Toronto Area, Canada
Full-time
…ensuring smooth operation of IT systems and applications. The Analyst will work closely with other IT support teams and business units to ensure that technology supports organizational…
Added 2 days ago
Technical Product Manager
Real Matters Inc.
Markham, ON
$100,000 to $120,000 CAD / year
Full-time
Real Matters is a leading network management services provider for the mortgage lending and insurance industries. Real Matters’ platform combines its proprietary technology and network…
Added 2 days ago
Senior Treasury Analyst
Government of Alberta
AB
The Senior Treasury Analyst plays a key role within the Treasury Risk Management (TRM) department, reporting to the Senior Manager, Credit and Analysis, supporting the execution of the…
Added 2 days ago
Network Analyst Student - Winter 2027
J.D. Irving, Limited
Saint John, NB
Full-time
As an intern, you’ll assist in maintaining and improving network operations, learning how to ensure efficiency, security, and performance across a large-scale digital environment.
Added 2 days ago
Manager, Portfolio Management Corporate Banking International Banking GBM (English/Spanish)- Toronto
Scotiabank
Toronto, ON
Scotiabank’s International Banking division is a diverse and dynamic network that provides financial advice and solutions to more than 12 million retail, corporate, and commercial clients.…

Senior Consultant - Microsoft Sentinel and Defender Engineer

Winnipeg, MB, R3C 4G9, Canada
Toronto, ON, M5H 0B3, Canada
Quebec, QC, Canada
Saskatoon, SK, S7K 5R5, Canada
Halifax, NS, B3J 0C3, Canada
St. John's, NL, A1E 0E4, Canada
Saint John, NB, Canada
London, ON, N6A 5S7, Canada
Vancouver, BC, V6E 4E5, Canada
Victoria, BC, V8W 2B7, Canada
Edmonton, AB, T5H 0E7, Canada
Ottawa, ON, K1P 6B9, Canada
Dieppe, NB, Canada
ON, Canada
AB, Canada
Waterloo, ON, N2L 0J6, Canada
Calgary, AB, T2P 1M4, Canada

Apply by: Dec 23, 2026
Posting language: English
Posted: Sep 21, 2026

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Original job description

At EY, we’re all in to shape your future with confidence.

We’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go.

Join EY and help to build a better working world.

The opportunity

EY is seeking a senior, hands-on Microsoft security engineer to support the design, implementation, and continuous improvement of our Managed Detection and Response (MDR) services. You will work directly with clients and delivery teams to architect and deploy Microsoft Sentinel, engineer detections and security use cases, build automation with Azure Logic Apps, develop operational workbooks, and integrate Microsoft Defender solutions. You will also help onboard and operate customer environments through Azure Lighthouse and Microsoft Entra B2B. The successful candidate combines deep engineering experience with clear client communication, practical problem solving, and ownership from design through production support.

This job posting relates to an existing vacancy within our organization.

Your role at a glance

Key responsibilities

As a senior technical member of the MDR team, you will:

Microsoft Sentinel architecture and implementation

Lead the technical design and implementation of Microsoft Sentinel SIEM and SOAR solutions for new and existing MDR clients.
Design workspace, data ingestion, retention, access-control, and multi-tenant operating models that account for security, regulatory, scalability, and cost requirements.
Configure Microsoft Sentinel in the Microsoft Defender portal, Log Analytics workspaces, data connectors, diagnostic settings, content solutions, watchlists, and supporting Azure resources.
Detection engineering and threat analytics
Create, test, tune, document, and maintain analytics rules, hunting queries, parsers, and functions using Kusto Query Language (KQL).
Translate threat scenarios, intelligence, customer risks, and operational requirements into practical detection use cases mapped to recognized frameworks such as MITRE ATT&CK.
Integrate and correlate telemetry from Microsoft Defender XDR, Microsoft Defender for Cloud, Microsoft Entra ID, Azure, Microsoft 365, and third-party security technologies.
Automation, orchestration, and reporting
Design, build, secure, and troubleshoot Microsoft Sentinel automation rules and playbooks using Azure Logic Apps.
Automate incident enrichment, triage, notification, containment, remediation, ticketing, and evidence collection across Microsoft and third-party systems.
Develop Microsoft Sentinel workbooks and service dashboards that provide actionable views of threats, incidents, coverage, operational performance, and data ingestion.
Multi-tenant onboarding and engineering
Design and implement secure cross-tenant access using Azure Lighthouse and Microsoft Entra B2B collaboration.
Work with customer identity, cloud, network, and security teams to establish permissions, managed identities, service principals, and least-privilege role assignments.
Troubleshoot complex onboarding, data-connector, ingestion, query, automation, and access issues across customer environments.
MDR service engineering and client collaboration
Provide senior technical support for incident investigation, threat hunting, detection tuning, platform health, and continuous service improvement.
Lead technical workshops, gather requirements, explain design decisions, and provide clear recommendations to client security and technology stakeholders.
Produce solution designs, deployment plans, runbooks, testing evidence, operational documentation, and knowledge-transfer material.
Provide technical guidance and peer review to engineers and analysts without direct people-management responsibility.

Skills and attributes for success

Substantial hands-on experience designing, implementing, and operating Microsoft Sentinel in enterprise or managed-service environments.
Advanced KQL skills and demonstrated experience developing analytics rules, hunting queries, functions, parsers, workbooks, and detection content.
Strong experience with Microsoft Defender XDR, including relevant Defender products across endpoints, identity, email and collaboration, cloud apps, and cloud workloads.
Hands-on experience building Azure Logic Apps, Microsoft Sentinel playbooks, and automation rules, including API-based integration, authentication, permissions, error handling, and monitoring.
Experience architecting Microsoft Sentinel deployments, including workspace strategy, data connectors, ingestion and retention, role-based access control, and operational cost management.
Experience implementing and supporting multi-tenant access with Azure Lighthouse and Microsoft Entra B2B collaboration.
Understanding of incident response, threat hunting, detection engineering, security operations, and common threat frameworks.
Ability to lead technical discussions with clients, convert requirements into implementable designs, and communicate complex concepts clearly.
Ability to work independently, manage competing priorities, document work, review peer solutions, and take ownership of technical outcomes.

Qualifications

Bachelor’s degree or diploma in computer science, information technology, cybersecurity, engineering, or a related discipline, or equivalent practical experience.
Typically, seven or more years of cybersecurity experience, including significant recent experience delivering Microsoft Sentinel and Defender engineering work.
Experience working in a client-facing consulting, MSSP, MDR, or enterprise security engineering role.
Microsoft Certified: Security Operations Analyst Associate (SC-200) is preferred. Azure, identity, architecture, or security certifications are considered an asset.
Experience with source control, infrastructure as code, CI/CD, or deployment automation for Microsoft Sentinel content is considered an asset.
Experience integrating Microsoft Sentinel with IT service management, threat intelligence, network security, identity, endpoint, email, or cloud platforms is considered an asset.

What we offer

At EY, our Total Rewards package supports our commitment to creating a leading people culture - built on high-performance teaming - where everyone can achieve their potential and contribute to building a better working world for our people, our clients and our communities. It's one of the many reasons we repeatedly win awards for being a great place to work

We offer a competitive compensation package where you’ll be rewarded based on your performance and recognized for the value you bring to our business. In addition, our Total Rewards package allows you decide which benefits are right for you and which ones help you create a solid foundation for your future. Our Total Rewards package includes a comprehensive medical, prescription drug and dental coverage, a defined contribution pension plan, a great vacation policy plus firm paid days that allow you to enjoy longer long weekends throughout the year, statutory holidays and paid personal days (based on province of residence), and a range of exciting programs and benefits designed to support your physical, financial and social well-being. Plus, we offer:

Support and coaching from some of the most engaging colleagues in the industry
Learning opportunities to develop new skills and progress your career
The freedom and flexibility to handle your role in a way that’s right for you.

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.

Toronto, Calgary, Vancouver, Edmonton: $90,500 to $126,000 per year

Inclusiveness at EY

Inclusiveness is at the heart of who we are and how we work. We’re committed to fostering an environment where differences are valued, policies and practices are equitable, and our people feel a sense of belonging. We embrace diversity and are committed to combating systemic racism, advancing gender equity and women in leadership, advocating for the 2SLGBTQIA+ community, promoting our neuroinclusion and accessibility initiatives, and are dedicated to amplifying the voices of Indigenous peoples (First Nations, Inuit, and Métis) nationally as we strive towards reconciliation. Our diverse experiences, abilities, backgrounds, and perspectives make our people unique and help guide us. Because when people feel free to be their authentic selves at work, they bring their best and are empowered to build a better working world.

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

EY | Building a better working world

EY is building a better working world by creating new value for clients, people, society and the planet, while building trust in capital markets.

Enabled by data, AI and advanced technology, EY teams help clients shape the future with confidence and develop answers for the most pressing issues of today and tomorrow.

EY teams work across a full spectrum of services in assurance, consulting, tax, strategy and transactions. Fueled by sector insights, a globally connected, multi-disciplinary network and diverse ecosystem partners, EY teams can provide services in more than 150 countries and territories.

At EY, we use artificial intelligence (AI) tools as one element of our recruitment process to enhance efficiency and improve the candidate experience. While AI supports us in our process, human judgment and decision-making remain integral in our candidate experience. We are committed to the responsible use of AI, and our practices are continuously reviewed and refined to ensure they align with ethical principles and regulatory requirements.

To all recruitment agencies: EY does not accept unsolicited resumes from recruitment agencies. Any resumes submitted without a prior agreement or request from our hiring team will not be considered. EY is not responsible for any fees related to unsolicited resumes.

Apply About employer

More about this job

Responsibilities

You will lead the technical design and implementation of Microsoft Sentinel and Defender solutions for MDR clients. Additionally, you will develop automation playbooks, create detection rules, and collaborate with stakeholders to ensure robust security operations.

Requirements

Candidates must have at least seven years of cybersecurity experience with significant expertise in Microsoft Sentinel and Defender engineering. A bachelor's degree in a relevant field is required, and professional certifications such as SC-200 are preferred.

Skills

Microsoft Sentinel
Microsoft Defender
Kusto Query Language
Azure Logic Apps
SIEM
SOAR
Threat hunting
Detection engineering
Azure Lighthouse
Microsoft Entra B2B
Incident response
Cloud security
Automation
Data ingestion
Role-based access control
Client communication

Benefits

Medical coverage
Prescription drug coverage
Dental coverage
Vacation policy
Paid personal days
Statutory holidays

Visa sponsorship

Not detected in the job text

Keywords

Microsoft Sentinel
Microsoft Defender XDR
SIEM
SOAR
KQL
Azure Logic Apps
Azure Lighthouse
Microsoft Entra B2B
Detection Engineering
Threat Hunting
MDR
MSSP
Cybersecurity
Cloud Security
Automation
Incident Response
MITRE ATT&CK
Log Analytics
Workbooks
API Integration
Infrastructure as Code
CI/CD
SC-200
Consulting
Identity Management
Network Security
Data Connectors
Managed Detection and Response
Security Operations
Risk Management

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