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Added 5 mins ago
VP
System Integration Project Manager
Vista Projects
Calgary, AB
- Full-time
This is not a traditional project administration role. The right candidate thinks like an engineer, manages like a delivery lead, and is energized by applying AI tools to real industrial…
Added 5 mins ago
CT
Lead QA Engineer
Cosmo Technologies
Toronto, ON
- $95,000 to $130,000 CAD / year
- Full-time
As Lead QA Engineer, you will own the overall quality strategy for our hardware, firmware, mobile apps, cloud services and AI‑powered features. You'll combine hands-on testing (manual and…
Added 5 mins ago
C
Lead QA Engineer
COSMO
Remote, Canada
- $95,000 to $130,000 CAD / year
- Full-time
- Remote
As Lead QA Engineer, you will own the overall quality strategy for our hardware, firmware, mobile apps, cloud services and AI‑powered features. You’ll combine hands-on testing (manual and…
Added 21 mins ago
AC
Senior Presales Solutions Architect, AWS
Adastra Corporation
Markham, ON
- Full-time
…and identity patterns, data platform services, integration, security, and governance - and defend the design under client and third-party…
Added 35 mins ago
EN
Program Manager
Extreme Networks
Toronto, ON
- Full-time
…hardware platform NPI, concurrent software releases, private cloud infrastructure deployment, and international compliance certification. The role requires strong technical program…
Added 50 mins ago
VP
System Integration Project Manager
Vista Projects Limited
Calgary, AB
- Full-time
This is not a traditional project administration role. The right candidate thinks like an engineer, manages like a delivery lead, and is energized by applying AI tools to real industrial…
Added 1 hour ago
AI
Microsoft Defender Security Engineer
Apptoza Inc.
Calgary, AB
- Full-time
Monitor and administer Proofpoint email security solutions to protect against phishing, malware, and business email compromise attacks.
Added 1 hour ago
ES
Security Engineering
Epsilon Solutions Ltd.
Montreal, QC
- Full-time
Design, implement, and maintain security controls across network, cloud, server, endpoint, and application environments.
Added 1 hour ago
L
Principal AI/ML Engineer
lululemon
Vancouver, BC
- Full-time
As a Principal AI/ML Engineer, you will define and drive implementation approaches for enterprise-scale AI initiatives that transform how lululemon operates and delivers value. You will…
Added 1 hour ago
Z
Penetration Testing and Red Team
Zoho
Toronto, ON
- Contract
We are seeking a Senior Penetration Tester / Red Team Engineer to support offensive security initiatives through advanced penetration testing, red team operations, and custom security tool…
Added 1 hour ago
C
ETL Data Lead (Hybrid)
Cognizant
Halifax, NS
- Full-time
We are seeking an experienced ETL/ELT Engineer to design, develop, and maintain robust data pipelines using Informatica IICS and Snowflake. The ideal candidate will have strong SQL skills,…
Added 1 hour ago
SL
ServiceNow Associate Software Engineer
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Waterloo King
- Full-time
At Sun Life, we're driven by our Purpose: helping our Clients achieve lifetime financial security and live healthier lives. Our values shape how we work: caring, authentic, bold, inspiring,…
Added 2 hours ago
Senior Software Engineer
Electronic Arts
Vancouver, BC
We are seeking an experienced Senior Software Engineer to join our Service Enablement organization as a technical leader and change-maker. In this role, you will lead a team of software…
Added 2 hours ago
MC
Cloud Platform Engineer – Kubernetes (36051)
Myticas Consulting
Toronto, ON
- Contract
Myticas Consulting is seeking an experienced Cloud Platform Engineer – Kubernetes to support enterprise cloud infrastructure, container platforms, and application engineering teams.
Added 2 hours ago
QI
AI Engineer
Quality IT Resourcing
Montreal, QC
- Contract
Engineer the context supplied to agents: select and assemble relevant instructions, retrieved information, tool outputs, and conversation history within token and access-control constraints.
Added 2 hours ago
IA
AI/ML Platform Engineer – Containers & GPU Infrastructure - Canada
IT Accel, Inc.
Toronto, ON
- Full-time
Solid understanding of networking, DNS, routing, cloud connectivity and infrastructure security.
Added 2 hours ago
T
Software Engineer II
TD
Toronto, ON · Montreal, QC
- Full-time
The TD Insurance Digital Platform is looking for a Software Engineer to join the MyInsurance development team. As a Software Engineer, the candidate will be a key contributor to…
Added 2 hours ago
SI
Software Engineer - Strong Java, Python and Linux experience
Smart IT Frame LLC
Toronto, ON
- Contract
Job Title: Software Engineer - Strong Java, Python and Linux experience
Added 2 hours ago
A
Senior IT Systems Engineer
arcadia
Toronto, ON
- $150,000 to $185,000 CAD / year
- Full-time
A well-funded deep-tech AI startup is hiring a Senior IT Systems Engineer to run and scale the corporate IT systems supporting its Toronto and Redwood City offices and remote employees. The…
Added 2 hours ago
2I
Cloud Infrastructure Engineer
2iSolutions Inc.
Oshawa, ON
- $70 to $75 CAD / hour
- Contract
The Cloud Infrastructure Engineer develops, configures, implements, and supports cloud infrastructure and virtualization solutions. The role works within established cloud architecture,…
Added 2 hours ago
LM
Full Stack Engineer Sr - E3
Lockheed Martin
Ottawa, ON
- Full-time
…integration, implementation and support. Proficient in infrastructure, security, software development, database management systems, and systems integration. Develops using agile processes…
Added 3 hours ago
BL
Agent Security Engineer
Belmont Lavan Ltd
Remote, Canada
- Full-time
- Remote
Belmont Lavan is hiring an Agent Security Engineer to secure autonomous AI agents before and after they reach production. Agents now call tools, hold credentials and act on live systems, so…
Added 3 hours ago
DevSecOps Specialist
Aylo Careers
Montreal, QC
As a member of the Infrastructure Security team, you will act as a SME and advisor, playing a pivotal role in developing and implementing tools, controls and processes to build out our…
Added 3 hours ago
SI
Java developer with Python and Linux expereince
Smart IT Frame LLC
Toronto, ON
- Contract
Role: Application Developer Software Engineer with Java, Python and Linux exp
Added 3 hours ago
TC
Python Developer
TSR Consulting
Mississauga, ON
- Contract
TSR Consulting is currently seeking a highly motivated Python Engineer for an opportunity in Mississauga, ON Hybrid

Apptoza Inc.

Microsoft Defender Security Engineer

Calgary, AB, Canada

Full-time

Apply About employer

Applications open in a new tab.

Job details

Job type: Full-time
Apply by: Dec 4, 2026
Posting language: English
Posted: Nov 4, 2026

Original job description

Role: Microsoft Defender Security Engineer

Location: Calgary, AB – Onsite

Job Description

Required Technical Skills

Microsoft Defender for Endpoint (MDE)

Microsoft Defender for Identity (MDI)

Microsoft Defender for Cloud Apps (MDCA)

CrowdStrike Falcon

Proofpoint Email Security

Security Incident Investigation and Response

Threat Hunting and Threat Intelligence

Endpoint Detection & Response (EDR)

SIEM/SOAR integration knowledge (Microsoft Sentinel preferred)

Windows Server and Active Directory Security

Email Security and Anti-Phishing Controls

Security Monitoring and Alert Triage

Key Responsibilities

Administer and support Microsoft Defender Suite (MDE, MDI, MDCA).

Manage CrowdStrike Falcon platform including policy tuning, threat detection, and endpoint protection.

Monitor and administer Proofpoint email security solutions to protect against phishing, malware, and business email compromise attacks.

Investigate security alerts and incidents, perform root cause analysis, and provide remediation recommendations.

Conduct proactive threat hunting across endpoints, identities, cloud applications, and email environments.

Fine-tune detection rules and security policies to reduce false positives and improve security visibility.

Integrate security tools with SIEM platforms such as Microsoft Sentinel.

Develop and maintain security monitoring dashboards, reports, and operational documentation.

Collaborate with infrastructure, application, and SOC teams during incident response and remediation activities.

Support vulnerability management and security compliance initiatives.

Apply About employer

More about this job

Responsibilities

Administer and tune Microsoft Defender, CrowdStrike Falcon, and Proofpoint security platforms; investigate incidents, hunt for threats, and recommend remediation. Integrate tools with SIEM platforms, maintain monitoring dashboards and documentation, and collaborate with technical and SOC teams on response, compliance, and vulnerability management.

Requirements

The role requires hands-on knowledge of Microsoft Defender for Endpoint, Identity, and Cloud Apps, CrowdStrike Falcon, and Proofpoint Email Security. Candidates should also have experience with incident response, threat hunting, EDR, SIEM/SOAR integration, Windows Server and Active Directory security, email protection, and security monitoring.

Skills

Microsoft Defender for Endpoint
Microsoft Defender for Identity
Microsoft Defender for Cloud Apps
CrowdStrike Falcon
Proofpoint Email Security
Security Incident Investigation and Response
Threat Hunting
Threat Intelligence
Endpoint Detection and Response
SIEM/SOAR Integration
Microsoft Sentinel
Windows Server Security
Active Directory Security
Email Security
Security Monitoring and Alert Triage
Vulnerability Management

Visa sponsorship

Not detected in the job text

Keywords

Microsoft Defender for Endpoint
Microsoft Defender for Identity
Microsoft Defender for Cloud Apps
CrowdStrike Falcon
Proofpoint Email Security
Microsoft Sentinel
SIEM
SOAR
Endpoint Detection and Response
Incident Investigation
Incident Response
Root Cause Analysis
Threat Hunting
Threat Intelligence
Detection Rules
Security Policies
Security Monitoring
Alert Triage
Windows Server
Active Directory
Email Security
Anti-Phishing
Business Email Compromise
Vulnerability Management
Security Compliance
Security Dashboards
Endpoint Protection

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