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Added 55 mins ago
Senior Automation Engineer
Actalent
Ottawa, ON
Contract
This Automation Engineer role focuses on building Python-based test automation and infrastructure for a next-generation embedded platform supporting future vehicle technologies. You will…
Added 55 mins ago
Senior Embedded C++ Software Engineer
Actalent
Ottawa, ON
Contract
Job Title: Expert Level Embedded Software Engineer
Added 2 hours ago
Senior OT Control Systems - Engineering Specialist
Mariner Innovations
Saint John, NB
Full-time
OVERVIEW OF THE ROLE: We are seeking a Senior OT Control Systems Engineer to join a critical industrial operations environment in Saint John, New Brunswick. In this role, you will be…
Added 2 hours ago
Senior Embedded Software Designer
Kepler Communications Inc.
Toronto, ON
Full-time
We're on the hunt for a top-tier Embedded Software Engineer. Your focus will be on software development and maintenance required for both space and ground-based assets for a growing fleet…
Added 3 hours ago
Full Stack Engineer – Fintech MVP
Twine
Canada
Contract
Proven experience as a senior full-stack engineer or technical lead, ideally in fintech or open-banking environments
Added 3 hours ago
Utilities Engineer – Interface Management (Senior)
SYSTRA
Toronto, ON
Full-time
The Utilities Engineer – Coordination and Interface Management is responsible for the identification, coordination, and resolution of interfaces between the High-Speed Rail (HSR) project…
Added 5 hours ago
Data Engineer
DarkVision
North Vancouver, BC
Full-time
DarkVision is seeking a Data Engineer to join our Imaging & AI team. You will contribute to multiple data pipelines that provide operational intelligence, underpin machine learning models,…
Added 5 hours ago
Utilities Engineer – Interface Management (Senior)
SYSTRA Canada
Toronto, ON
Full-time
The Utilities Engineer – Coordination and Interface Management is responsible for the identification, coordination, and resolution of interfaces between the High-Speed Rail (HSR) project…
Added 6 hours ago
Data Architect
Brandt Group of Companies
Regina, SK
Full-time
Brandt is seeking a highly skilled and motivated Data Engineer to join our dynamic team. The ideal candidate will have a strong background in designing, implementing, and optimizing data…
Added 6 hours ago
Software Developer - Full Stack - Senior - RQ11443
S M Software Solutions Inc
Toronto, ON
Internship
We are looking for an experienced Software Developer – Full Stack – Senior with strong hands-on experience developing large-scale, production business applications using Java for…
Added 6 hours ago
Software Developer - Full Stack - Senior - RQ11443
S M Software Solutions Inc
Toronto, ON
Internship
We are looking for an experienced Software Developer – Full Stack – Senior with strong hands-on experience developing large-scale, production business applications using Java for…
Added 7 hours ago
Senior Software Engineer
Microsoft
Vancouver, BC
Full-time
…analytics in the world of data with products across databases, data integration, big data analytics, messaging and real-time analytics, and business intelligence. The products in our…
Added 7 hours ago
Satellite TT&C/PDT Systems Engineer
MANNARINO
Montreal, QC
Full-time
We are seeking a System Engineer to perform design, integration, verification, and operational support of TT&C/PDT subsystems for current and next‑generation remote sensing and…
Added 7 hours ago
Satellite Bus Systems Engineer
MANNARINO
Montreal, QC
Full-time
We are seeking a Satellite Bus System Engineer to design structural, thermal, power distribution, attitude control, propulsion, CD&H, TT&C/PDT, FSW, and interface architectures that support…
Added 7 hours ago
Spacecraft EMC Systems Engineer
MANNARINO
Montreal, QC
Full-time
We are seeking a Spacecraft EMC Systems Engineer for its high‑performance spacecraft for our remote sensing and communications satellites. The Spacecraft EMC Systems Engineer will own the…
Added 7 hours ago
Guidance, Navigation & Control (GNC) Systems Engineer
MANNARINO
Montreal, QC
Full-time
We are seeking a GNC System Engineer for design, integration, verification, and operational support of GNC subsystems for our current and next‑generation remote sensing and communications…
Added 7 hours ago
Satellite Electrical Power System (EPS) Design Engineer
MANNARINO
Montreal, QC
Full-time
We are seeking an experienced Electrical Power System Engineer to support the concept, detailed design, analysis, verification, and integration of electrical power subsystems (solar arrays,…
Added 7 hours ago
Satellite Electrical Propulsion Systems Engineer
MANNARINO
Montreal, QC
Full-time
We are seeking a Satellite Electrical Propulsion Systems Engineer to define, design, analyse, integrate, and verify electric propulsion (EP) subsystems (thrusters, power-processing units,…
Added 8 hours ago
Infrastructure Analyst
T&T Supermarket
Richmond, BC
$65,000 to $85,000 CAD / year
Full-time
Reporting to the Senior IT Manager - Technology Enablement, the Infrastructure Analyst is responsibility to bridge the gap between business requirements and technology solutions, analyze,…
Added 8 hours ago
Senior Mechanical Engineer
ATS Automation
Cambridge, ON
Assist the fabricators, machinists, toolmaker and electricians in the debug, integration resolving problems and
Added 8 hours ago
Senior Backend Engineer
Chexy
Toronto, ON
Full-time
We're looking for a Senior Backend Engineer to own a payments domain in Chexy's core backend service end to end. You'll work on the systems that move money - inflows, outflows, ledgering,…
Added 8 hours ago
Senior QA Developer (Agent Security)
Fortinet
Burnaby, BC
Full-time
We are hiring a Senior / Staff QA Engineer for Fortinet's AI security product line, FortiAIGate, to own end-to-end testing of the product across both SaaS and on-premises deployments.…
Added 9 hours ago
Lead Software Engineer – Enterprise Integration (Azure)
Altis Technology
Toronto, ON · Greater Toronto Area, Canada
$100 to $125 CAD / hour
Contract
Role: Lead Software Engineer / Technical Lead
Added 9 hours ago
Director, Process Engineering
Royal Bank of Canada
Toronto, ON
Full-time
As the Director, Process Engineering, you'll re-imagine and engineer “architecture management”; how architecture development and governance is applied across EA and architecture community,…
Added 9 hours ago
Senior DevOps Engineer
Royal Bank of Canada
Toronto, ON
Full-time
We are seeking a highly skilled and experienced DevOps Engineer to join our team. The successful candidate will be responsible for ensuring the smooth operation of our production systems,…

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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