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Added 5 mins ago
Cyber Security Co-op/Intern – JEDI Partnership
TD
Toronto, ON
Full-time
Cyber Security Engineers test and implement cyber security solutions, build automation and integration solutions between cyber security tooling, and provide expert guidance on cyber…
Added 7 mins ago
AI DevOps Specialist (AI Enablement & Secure DevOps)
Celestica International LP
Toronto, ON
This specialist will bridge the gap between AI development pipelines, secure networking infrastructure, and cloud platform services. They will take a hands-on lead in configuring…
Added 34 mins ago
Quality Engineering III
TD
Toronto, ON
Full-time
Lead the creation of comprehensive, effective end-to-end test strategies and plans for platforms and projects on high profile, complex and high-risk initiatives with significant impact to…
Added 52 mins ago
Solutions Engineer (Remote, Canada)
GoCanvas
Remote, Canada
Full-time · Remote
…infrastructure, logistics, and beyond. We’re the highest-rated EHS platform on Gartner-owned Capterra, empowering field teams and safety leaders to replace paperwork, boost compliance, and…
Added 1 hour ago
Software Engineer
Fiscal.ai
Remote, Canada
Full-time · Remote
Hands-on experience building end-to-end test automation (Playwright preferred) and unit tests (Vitest or Jest), and running them in CI.
Added 1 hour ago
Senior Consultant - Microsoft Sentinel and Defender Engineer
EY
Winnipeg, MB · Toronto, ON · Quebec, QC · Saskatoon, SK · Halifax, NS · St. John's, NL · Saint John, NB · London, ON · Vancouver, BC · Victoria, BC · Edmonton, AB · Ottawa, ON · Dieppe, NB · ON · AB · Waterloo, ON · Calgary, AB
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…
Added 1 hour ago
Sr. Full Stack Software Engineer (Contract Role)
PlayStation Global
Waterloo, ON
Playstation is looking for a Software Engineer to build our next-generation technologies and applications in the growing Madison, WI campus. We apply modern web technologies and…
Added 1 hour ago
Senior/Lead Engineer - Agentic AI Development
FICO
Canada
Full-time
…the harness (Agent = Model + Harness). As a Senior Harness Engineer you'll independently own whole harness subsystems, set the standards other engineers build to, and be involved in the…
Added 1 hour ago
Intermediate Data Engineer
BMO
Toronto, ON · SCC
Full-time
The Data Engineer is responsible for designing, building, and supporting scalable data solutions that enable analytics, reporting, regulatory, and operational business processes. Working as…
Added 2 hours ago
Technical Consultant III (35732)
Myticas Consulting
Toronto, ON
Full-time
Technical Consultant III (Software Engineer, Senior/Lead)
Added 2 hours ago
Staff Platform Engineer - Materia AI
Thomson Reuters
Toronto, ON
Full-time
As a Platform Engineer, you will contribute to leading the design, development, and evolution of our next-generation cloud-native platforms. You will contribute to technical strategy,…
Added 2 hours ago
ARE Automation / DevOps Engineer
K&K Global Talent Solutions INC.
Toronto, ON
$110,000 to $120,000 CAD / year
Full-time
…environments, Scripting and debugging cloud infrastructure provisioning automation, Delivering changes to development, test, and production…
Added 3 hours ago
IT Observability Infrastructure Technician - Dynatrace
Tech Talent International
Montreal, QC
$85,000 to $90,000 CAD / year
Full-time
 Automation – Experience of automated test /server automation tools such as Ansible, Jenkins, Git and integration with security vaults.
Added 4 hours ago
Growth Marketing Manager
CausalFunnel
Canada
Full-time
CausalFunnel is an AI platform for growth optimization helping businesses identify and eliminate revenue leaks across their customer acquisition channels.
Added 4 hours ago
Principal Software Developer – AI/ML Performance Validation & Systems Testing
Advanced Micro Devices, Inc
Markham, ON
Full-time
We are seeking a Principal Software Engineer to serve as the senior technical leader for ROCm software validation across compute workloads and server-class systems. In this…
Added 5 hours ago
Quality Engineer III
TD
Toronto, ON
Full-time
…end-to-end quality engineering strategy and execution across the platform. The role requires developing and leading test governance, automation strategy, and release quality, with a focus…
Added 6 hours ago
Software Engineer II
TD
Toronto, ON
Full-time
At TD, the Pricing Product Group (Pricing PG) delivers and supports critical Pricing platform that help drive business decisions across multiple Lines of Businesses within the enterprise.…
Added 7 hours ago
Quality engineer (AEM)
Insight Global
Toronto, ON
$50 to $55 CAD / hour
Contract
The Digital Platform & Content Management team is searching for an experienced Quality Engineer to join our team. As a Quality Engineer, you will partner with development, architecture,…
Added 7 hours ago
Lead Platform Engineer (DevOps & MLOps)
Shore Consulting
Toronto, ON
Full-time
Reporting to the Director, Platform Services, the Lead DevOps Engineer is a senior, hands-on technical leader responsible for building, operating, and continuously improving Afflo’s…
Added 7 hours ago
Automation Engineer - API/Data/SQL
PLATO
Ottawa, ON · Calgary, AB · Sault Ste. Marie, ON · Vancouver, BC · Prince Albert, SK · Regina, SK · Gatineau, QC · BC · Winnipeg, MB · Fredericton, NB · Toronto, ON · Halifax, NS
$90,000 to $110,000 CAD / year
Full-time
…database reconciliation, and regression testing. Build reusable automation frameworks, integrate test suites with CI/CD pipelines, and produce execution evidence and reporting to support…
Added 15 hours ago
Senior Software Engineer - React (Platform UI)
Ping Identity
Vancouver, BC
Full-time
We are looking for a highly motivated Senior Software Engineer to join our Platform UI team to build web applications for the next generation Identity platform. This role requires a…
Added 15 hours ago
Software Engineer II - Platform UI (React)
Ping Identity
Vancouver, BC
Full-time
We are looking for a highly motivated Software Engineer II to join our Platform UI team to build web applications for the next generation Identity platform. This role requires a developer…
Added 18 hours ago
Firmware Engineer
Corvita Biomedical
Toronto, ON
Full-time
Embedded Systems Engineer Firmware and PCB Design
Added 1 day ago
Senior Cloud Engineer – Google Cloud Platform Firebase (35740)
Myticas Consulting
Toronto, ON
Contract
Position: Senior Cloud Engineer – Google Cloud Platform (GCP) / Firebase
Added 1 day ago
Electrical Safety & Energization Lead
Ziggurat Automation Inc.
Field, BC
Full-time
Factory Acceptance Test (FAT) Site Acceptance Test (SAT) Witness testing Staged commissioning / cutover

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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