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Acestack
Tower Lead – Cyber Security / Windows Defender || Calgary, AB - Onsite || Fulltime FTEAcestack • Calgary, AB, Canada
Tower Lead – Cyber Security / Windows Defender || Calgary, AB - Onsite || Fulltime FTE

Tower Lead – Cyber Security / Windows Defender || Calgary, AB - Onsite || Fulltime FTE

Acestack • Calgary, AB, Canada
1 day ago
Job type
  • Full-time
  • Quick Apply
Job description
Tower Lead Cyber Security / Windows Defender Location: Calgary, AB
Work Arrangement: Onsite
Job Type: Contract / Full-Time Job Summary We are seeking an experienced Cyber Security Tower Lead / Windows Defender Architect to lead enterprise security operations and endpoint protection initiatives. The ideal candidate will have expert-level knowledge of Microsoft Windows Defender and strong experience leading cybersecurity tool towers in complex enterprise environments. Key Responsibilities
  • Lead the Cyber Security Tools Tower and provide technical leadership for endpoint security initiatives.
  • Act as the Windows Defender Architect / SME, providing expert guidance on Microsoft Defender solutions.
  • Design, implement, and optimize Windows Defender security solutions across enterprise environments.
  • Lead security tool strategy, architecture, deployment, configuration, and ongoing optimization.
  • Monitor and improve endpoint protection, threat detection, incident response, and security posture.
  • Collaborate with Cyber Security, Infrastructure, Network, Cloud, and Operations teams.
  • Provide technical leadership, troubleshooting, and resolution of complex security issues.
  • Establish security standards, best practices, governance, and operational procedures.
  • Lead security tool upgrades, migrations, integrations, and technology transformation initiatives.
  • Mentor technical teams and provide expert-level guidance on Microsoft Defender technologies.
  • Prepare technical documentation, architecture diagrams, operational procedures, and reports.
Required Skills & Qualifications
  • 7+ years of experience in Cyber Security / Endpoint Security / Security Engineering.
  • Expert-level experience with Microsoft Windows Defender / Microsoft Defender.
  • Strong experience as a Windows Defender Architect / Technical Lead / SME.
  • Proven experience leading a Cyber Security Tools Tower or similar security technology function.
  • Strong understanding of endpoint protection, threat detection, EDR/XDR, and security monitoring.
  • Experience with enterprise-scale security architecture, implementation, and troubleshooting.
  • Strong leadership, stakeholder management, and communication skills.
  • Ability to work onsite in Calgary, AB.
Preferred Certification
  • Microsoft Defender / Windows Defender certification or relevant Microsoft Security certification is highly preferred.
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Tower Lead – Cyber Security / Windows Defender || Calgary, AB - Onsite || Fulltime FTE • Calgary, AB, Canada

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