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Added 1 hour ago
Senior Software Architect (Fintech, NYSE-Listed, Investments & Wealth Platform)
Salient Group
Toronto, ON · Greater Toronto Area, Canada
Full-time
We're hiring a hands-on Senior Software Architect to design and build the backend systems behind a brokerage and capital markets platform - trading, order management, positions, settlement,…
Added 1 hour ago
Lead Data Engineer - AI & Machine Learning
Royal Bank of Canada
Toronto, ON
Full-time
Join a high-performing team transforming RBC's Chief Data Office. You will work closely with SMEs, business stakeholders, architects, and senior developers to build and deploy scalable,…
Added 3 hours ago
Solutions Designer- Canada Public Sector, Federal
Cisco
Ottawa, ON · Kanata, Ontario
Full-time
…transformation. This includes connecting people, processes, data, and things through networks that form an essential foundation for an AI-powered…
Added 3 hours ago
Lead Data Engineer - AI & Machine Learning
RBC
Toronto, ON
Full-time
Join a high-performing team transforming RBC's Chief Data Office. You will work closely with SMEs, business stakeholders, architects, and senior developers to build and deploy scalable,…
Added 3 hours ago
Director Solution Architect
RBC
Toronto, ON
Full-time
Facilitate collaboration within the organization and support the architecture lead and senior architects.
Added 3 hours ago
Senior Software Engineer
Norton Rose Fulbright
Toronto, ON
Full-time
The Senior Software Engineer is responsible for developing, implementing, and supporting enterprise-grade cloud solutions leveraging Microsoft Azure and Microsoft Fabric. This role focuses…
Added 4 hours ago
Lead Infrastructure Architect
Financial Services Regulatory Authority of Ontario (FSRA)
Toronto, ON
Full-time
The Lead Infrastructure Architect plays a key role in shaping and maintaining FSRA’s hybrid cloud environment. This role provides technical leadership and oversight to ensure the…
Added 4 hours ago
Solution Architect - CRM - Senior - RQ11560
S M Software Solutions Inc
Toronto, ON
Internship
We are looking for an experienced Solution Architect – CRM – Senior with strong expertise in Microsoft Dynamics 365 Solution Architecture, Microsoft Power Platform, Azure-based enterprise…
Added 4 hours ago
Spontaneous Application – IT & Digital Technology
BNP Paribas
Montreal, QC
Full-time
…methodology. To support those activities, we are looking for: Senior Business Analysts. Application Production Support Specialists and Senior…
Added 4 hours ago
Senior AI Engineer
Procom
Vancouver, BC
Contract
On behalf of our client, Procom is searching for a Senior AI Engineer for a 3-month role. This position is a hybrid position with 3 days onsite at our client’s Richmond office.
Added 5 hours ago
Senior Solution Architect
Technitask
Toronto, ON · Greater Toronto Area, Ontario
$90 to $110 CAD / hour
Full-time
…of SAP functional consultants, developers, project managers, data engineers, and security analysts create value for customers in the utilities, telecommunications, and public services…
Added 5 hours ago
Senior Mulesoft Software Engineer
Manulife
Toronto, ON · Waterloo, ON
Full-time
…the next generation of enterprise integration solutions. As a Senior MuleSoft Software Engineer, you will design, develop, and support scalable, secure, and resilient integration platforms…
Added 6 hours ago
Senior Mobile Developer
Pillway
Brampton, ON
Full-time
We are seeking a highly skilled Senior Mobile Developer with 4+ years of experience to join our core engineering team. This role is pivotal for owning and driving the development of our…
Added 6 hours ago
Senior Enterprise Architect
Addmore Group
Calgary, AB
Contract
Our Calgary based client requires a Senior Enterprise Architect for a 1 year contract. Onsite delivery.
Added 7 hours ago
Senior Project Manager - Utilities Construction (CB)
Clark Builders
Edmonton, AB
Full-time
The Senior Project Manager, Utilities Construction oversees multiple and/or large scope construction projects and teams; managing the technical, administrative and training support for…
Added 8 hours ago
Senior DevOps Engineer
Motorola Solutions
Vancouver, BC
Full-time
We are seeking a highly experienced and passionate Senior DevOps Engineer to join our team. In this pivotal role, you will be instrumental in evaluating, consolidating, and designing the…
Added 9 hours ago
Senior Product Development Engineer – Liquid Cooling
Amphenol Communications Solutions
Markham, ON
Full-time
…assemblies for diverse applications including server, storage, data center, mobile, RF, networking, industrial, business equipment, and…
Added 9 hours ago
Solution Architect (Databricks)
CGI
Toronto, ON
Full-time
The ideal candidate will bring deep expertise in Databricks, data architecture, ETL/data engineering, data modeling, Medallion Architecture, Unity Catalog, and DevOps/CI/CD practices. This…
Added 9 hours 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 9 hours ago
UX Architect_Onsite@Calgary,CA
BURGEON IT SERVICES
Calgary, AB
Contract
We are seeking an experienced UX Architect to lead the design vision and user experience strategy for a large-scale digital transformation initiative within the logistics and transportation…
Added 9 hours ago
Product & Pricing Architect (35728)
Myticas Consulting
Toronto, ON
Full-time
We are seeking an experienced Product & Pricing Architect to provide senior functional and solution leadership for the implementation of SaaS-based banking product and pricing solutions.
Added 9 hours ago
User Experience Architect
Apptoza Inc.
Calgary, AB
Contract
We are seeking an experienced UX Architect to lead the design vision and user experience strategy for a large-scale digital transformation initiative within the logistics and transportation…
Added 9 hours ago
Principal Consultant - SAP EWM Consultant
Infosys
Mississauga, ON
$102,474 to $147,835 CAD / year
Full-time
Develop and implement complex integration workflows to connect the ERP system with external applications, while leading large-scale data migration strategies to ensure data integrity
Added 10 hours ago
Digital Architect - JP01022
Emmaculate Global INC.
Canada
Contract
Duties: The Senior Digital Architect will be required on a full-time basis (7.25-hour workday), working across multiple applications, projects, operational initiatives, and strategic…
Added 10 hours ago
Architect
SynergyLoft
AB · Edmonton, AB
$117 to $141 CAD / hour
Contract
The Senior Digital Architect will be required on a full-time basis (7.25-hour workday), working across multiple applications, projects, operational initiatives, and strategic technology…

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.

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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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