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Added 19 days ago
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Senior Full Stack Software engineer
Affinity
BC · British Columbia, Canada
- Full-time
On behalf of our client, Affinity is seeking an experienced Senior Full Stack Developer to join their engineering team in Canada. This is a full-time opportunity for a seasoned engineer who…
Added 20 days ago
A
Senior Fuel Engineering Analyst
AtkinsRéalis
Mississauga, ON
- Full-time
Candu Energy Inc. is looking for a Senior Fuel Engineering Analyst to be a part of our team in the Fuel and Physics department supporting the design of new nuclear power plants and the…
Added 20 days ago
K
Consultant/Senior Consultant – Value Creation, Strategy & Business Transformation
KPMG
Montreal, QC
- Full-time
We are looking for a high-performing Senior Consultant to join our growing Value Creation & Deal Strategy team in Montreal. You will support high-impact mandates at the intersection of…
Added 19 days ago
EA
Développeur.se de logiciels sénior.e - outils de moteur génératif / Senior Software Engineer - Generative Engine Tools
Electronic Arts (EA)
Montreal, QC
- Full-time
As a Senior Software Engineer, you will collaborate with Research Scientists and Engineers to shape how new technologies integrate into core engine architecture. You will translate ideas…
Added 19 days ago
EA
Développeur.se de logiciels sénior.e - applications dorsales / Senior Software Engineer - Backend
Electronic Arts (EA)
Montreal, QC
- Full-time
As a Senior Software Engineer, you will collaborate with Research Scientists and Engineers to shape how new technologies integrate into backend architecture. You will translate ideas from…
Added 19 days ago
A
Ingénieur(e) Senior, Plateforme de Données
Astek
Montreal, QC
- Full-time
Nous recherchons un(e) Ingénieur(e) Senior, Plateforme de Données avec de solides compétences en programmation et une expérience approfondie en ingénierie de données moderne. Le/la…
Added 19 days ago
FI
Senior Engineer, Applied AI
Fulfillment IQ
Remote, Canada
- Full-time
- Remote
This is a high-impact, senior engineering role, where engineers are expected to operate with significant ownership and minimal oversight. The role focuses on building production-ready AI…
Added 19 days ago
SC
Spécialiste Réseaux (Senior)
SII Canada
Montreal, QC
- Full-time
Expérience avec les outils d’automatisation tels qu’Ansible, Python, Terraform ou équivalent.
Added 19 days ago
GS
Spécialiste Réseaux (Senior)
Groupe SII
Montreal, QC
- Full-time
Expérience avec les outils d’automatisation tels qu’Ansible, Python, Terraform ou équivalent.
Added 19 days ago
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Senior DevOps Engineer
Bounteous
Montreal, QC
- Full-time
We are seeking a Senior DevOps Engineer to join our Release Management team in
Added 20 days ago
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Senior Applied Scientist, ML Predictive Maintenance (Asset Intelligence)
MaintainX (An Autodesk Company)
Remote, Canada
- $123,000 to $180,000 CAD / year
- Full-time
- Remote
5+ years of proven programming skills using standard ML tools such as Python, PyTorch, Tensorflow etc.
Added 20 days ago
R
Senior Manager - AML Data - Financial Crimes and AML Internal Audit
RBC
Toronto, ON
- Full-time
Working knowledge of SQL, Python and excel (able to read, understand, and apply code/queries for analysis and validation of data)
Added 19 days ago
Senior Fullstack Developer
Stay22
Montreal, QC
As a Senior Fullstack Developer on the Phantom team, you will play a key role in advancing our embedded widget and affiliate platform. Your mission will be to streamline browser execution…
Added 19 days ago
CG
Senior DevOps/SRE Engineer
Credit Genie
Toronto, ON
- Full-time
As a Senior DevOps / SRE Engineer on this team, you'll own reliability and deployments across our AWS and Kubernetes environment, take real ownership of our compliance work, and help build…
Added 19 days ago
SC
Senior Manager - Customer Analytics
Staples Canada
Richmond Hill, ON
- Full-time
Expert in SQL and strong proficiency in Python.
Added 19 days ago
Senior Cybersecurity Specialist
STACK IT Recruitment
Hamilton, ON
Our client is looking for a Senior Cybersecurity Specialist to own security across a large, highly integrated technology environment. This is a hands-on role for someone who can move…
Added 19 days ago
Senior Cybersecurity Specialist
STACK IT Recruitment
Burlington, ON
Our client is looking for a Senior Cybersecurity Specialist to own security across a large, highly integrated technology environment. This is a hands-on role for someone who can move…
Added 19 days ago
Senior Cybersecurity Specialist
STACK IT Recruitment
Oakville, ON
Our client is looking for a Senior Cybersecurity Specialist to own security across a large, highly integrated technology environment. This is a hands-on role for someone who can move…
Added 19 days ago
Senior Cybersecurity Specialist
STACK IT Recruitment
Mississauga, ON
Our client is looking for a Senior Cybersecurity Specialist to own security across a large, highly integrated technology environment. This is a hands-on role for someone who can move…
Added 19 days ago
SI
Senior Cybersecurity Specialist
STACK IT Recruitment
Burlington, ON
- $110,000 to $130,000 CAD / year
- Full-time
Our client is looking for a Senior Cybersecurity Specialist to own security across a large, highly integrated technology environment. This is a hands-on role for someone who can move…
Added 20 days ago
NS
Senior IC Design Verification Engineer
NXP Semiconductors
Ottawa, ON · Kanata
- Full-time
Strong Experience in EDA tools and scripting (Python, TCL, Perl, Makefile, Shell) used to build tools and flows for verification environments
Added 20 days ago
MS
Senior Data Engineering Specialist (Hybrid)
Morgan Stanley
Montreal, QC
- Full-time
We're seeking someone to join our Analytics & Reporting Fleet team as a Senior Data Engineering Specialist in Trade Enrichment Data Reporting & Allocations (TEDRA) to build and evolve…
Added 19 days ago
I
Software Developer - Inteleshare
Intelerad
Canada
- Full-time
We are seeking a Software Developer to join the InteleShare team and contribute to Intelerad's secure, cloud-based medical image sharing platform. In this role, you will design and deliver…
Added 19 days ago
Lead IAM Engineer
Braze
Toronto, ON
…enterprise identity and access management strategy. In this senior individual contributor role, you’ll architect, build, and continuously improve a secure, scalable, and automated identity…
Added 19 days ago
B
Sr Analyst, DevOps
Brookfield
Toronto, ON
- Full-time
The Senior AI Cloud Developer Analyst within Brookfield’s Technical Service Group (TSG) builds and delivers AI solutions from prototype to production, implementing scalable, secure and…

STACK IT Recruitment

Senior Cybersecurity Specialist

Burlington, ON, Canada

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Job details

Experience: 5+ years of hands-on cybersecurity experience in a senior security engineering, security operations, or similar role.
Posting language: English
Posted: Sep 15, 2026

Original job description

Could you be the person who sees what’s missing, figures out what needs to change, and actually makes it happen?

Our client is looking for a Senior Cybersecurity Specialist to own security across a large, highly integrated technology environment. This is a hands-on role for someone who can move comfortably between security engineering, incident response, identity, vulnerability remediation, application security, and security program coordination.

You’ll have the autonomy to assess the environment, identify priorities, and drive meaningful improvements, working closely with IT leadership, infrastructure, development teams, and external security partners.

💻 Who You Are

You’re a senior security practitioner with a broad technical perspective. You don’t need to be an expert in every security product, but you know how to investigate, make sound decisions, implement controls, and follow through until the outcome is verified.

You’re equally comfortable digging into an identity issue, investigating a security alert, working with developers on an application security concern, or coordinating a vendor to close a vulnerability.

Most importantly, you understand that security exists within a live business environment. You know how to balance risk reduction with uptime, testing, change windows, rollback planning, and operational realities.

📍 Work Type

Location: Burlington, ON - on-site
Vacancy Type: This role reflects an existing vacancy

🎯 What You’ll Do

Assess the existing security environment, identify priorities, and take ownership of the security roadmap.
Investigate security alerts and incidents and drive remediation through verified closure.
Strengthen identity security across Active Directory and Microsoft Entra, including MFA, Conditional Access, PIM, privileged access, and lifecycle controls.
Implement and improve Microsoft security capabilities across Defender, Microsoft 365, Purview, Intune, and XDR.
Drive vulnerability remediation based on technical risk and business impact.
Partner with development, infrastructure, MDR/SIEM/XDR providers, and other vendors to improve security across the environment.
Support application and integration security, including authentication, APIs, permissions, and threat modeling.
Maintain security playbooks, procedures, documentation, risk tracking, and program reporting.
Introduce security changes thoughtfully, with appropriate testing, monitoring, rollback planning, and consideration for live business operations.

⭐ What We’re Looking For

5+ years of hands-on cybersecurity experience in a senior security engineering, security operations, or similar role.
Strong experience with hybrid Active Directory and Microsoft Entra environments.
Hands-on knowledge of MFA, Conditional Access, PIM, privileged identities, service accounts, access reviews, and identity lifecycle controls.
Experience with Microsoft Defender, Microsoft 365/XDR, Purview, Intune, and related security controls.
Proven experience with incident investigation and vulnerability remediation.
Working knowledge of Azure and AWS security, Windows/Linux, networking, and cloud logging.
Scripting experience with PowerShell or Python.
Understanding of application/integration security, APIs, authentication, threat modeling, SAST, or DAST.
Strong judgement when implementing security changes in production environments.
Excellent communication skills and the ability to influence technical and non-technical stakeholders.
A hands-on builder-operator mindset, comfortable implementing solutions rather than simply making recommendations.

🔥 What Makes This Role Exciting?

Real Ownership: Shape security priorities and determine what needs to happen next.
Technical Breadth: Work across identity, cloud, infrastructure, applications, and security operations.
Visible Impact: Make meaningful security improvements across a large, highly integrated environment.
Hands-On Influence: Design, implement, coordinate, and verify security improvements.

Base Salary: $110,000 – $130,000 + 10% annual bonus
Paid Vacation and Personal Days
Comprehensive Health Benefits & RRSP Matching

📩 Ready to Elevate Your IT Career? Apply Now!

At STACK IT Recruitment, we connect top technical talent with standout opportunities across Canada. If you meet at least 70% of the qualifications, we encourage you to apply - we’d love to chat!

Know someone perfect for this role? Share this posting! You might help them find their next great opportunity.

✨ We’re proud to support diversity and inclusion. Need accommodation during the hiring process? Just let us know - we’re here to help.

AI Use Disclosure:

STACK IT uses AI-enhanced tools to support initial candidate screening and interview note analysis. All assessments and hiring decisions remain human-led.

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More about this job

Responsibilities

The Senior Cybersecurity Specialist will own security across a large, integrated environment by assessing risks, identifying priorities, and driving the security roadmap. They will actively investigate incidents, manage identity controls, and partner with technical teams to implement verified security improvements.

Requirements

Candidates must have at least 5 years of hands-on experience in security engineering or operations with strong expertise in Microsoft security stacks and hybrid identity environments. Proficiency in scripting, vulnerability management, and the ability to influence stakeholders are essential for this role.

Skills

Cybersecurity
Security engineering
Incident response
Identity management
Vulnerability remediation
Application security
Active Directory
Microsoft Entra
Microsoft Defender
PowerShell
Python
Threat modeling
Azure
AWS
Networking
Risk management

Benefits

Paid vacation
Personal days
Comprehensive health benefits
RRSP matching

Visa sponsorship

Not detected in the job text

Keywords

Cybersecurity
Security Engineering
Incident Response
Identity Management
Vulnerability Remediation
Application Security
Active Directory
Microsoft Entra
MFA
Conditional Access
PIM
Microsoft Defender
Microsoft 365
Purview
Intune
XDR
Azure
AWS
PowerShell
Python
Threat Modeling
SAST
DAST
Networking
Risk Reduction
Security Operations
MDR
SIEM
APIs
Authentication

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