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S.i. Systems
Senior Security Hardening & Remediation Specialists — one focused on Windows 11 and one on macOS —S.i. Systems • Victoria, CA
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Senior Security Hardening & Remediation Specialists — one focused on Windows 11 and one on macOS —

Senior Security Hardening & Remediation Specialists — one focused on Windows 11 and one on macOS —

S.i. Systems • Victoria, CA
9 days ago
Job type
  • Full-time
  • Remote
Job description

Overview:

Our banking client is seeking two Security Hardening & Remediation Specialists — one focused on Windows 11 and one on macOS — to lead enterprise-wide endpoint security hardening and remediation across their environment. Each specialist will own gap analysis, policy development, and phased technical implementation across endpoint and application layers, working cross-functionally with Cybersecurity Governance, IAM, and endpoint engineering teams. (Remote — Alberta-based preferred) [-51, -52]

Must-Haves:

  • 5+ years in Cybersecurity, Endpoint Engineering, or Infrastructure Security with heavy focus on Configuration Management / Security Configuration Management (SCM)
  • Deep hands-on hardening experience in at least one of the following:

1) Windows 11 — Credential Guard, Virtualization-based Security (VBS), BitLocker, GPO authoring and enterprise deployment, Omnissa Workspace One

Active Directory

2) macOS — FileVault, TCC/Privacy Preferences Policy Control, System Extensions, Gatekeeper, Jamf Pro (configuration profiles, smart groups)

  • Scripting proficiency for automated remediation: PowerShell (Windows) or Zsh/Bash (macOS)
  • Experience implementing security frameworks: CIS Benchmarks, NIST SP -53, DISA STIGs (Windows) or mSCP / CIS Benchmarks for macOS

Nice-to-Haves:

  • Experience in both Windows 11 and macOS hardening environments
  • Familiarity with ports, protocols, and services management at the network layer
  • Ability to translate governance/compliance documents into actionable engineering requirements
  • Experience collaborating with IAM, DevOps, and Cybersecurity Governance teams
  • Security certifications (CISSP, CISM, CISA, or equivalent)

Responsibilities:

  • Conduct deep-dive gap analysis of the endpoint fleet against Cybersecurity Governance Hardening Standards
  • Develop hardened configuration baseline documentation aligned to relevant OS security frameworks
  • Author and deploy GPOs, configuration profiles, and remediation scripts to enforce compliance at scale
  • Lead phased rollout of OS-level hardening configurations enterprise-wide, minimizing user disruption
  • Align endpoint controls with application-layer and network-layer security requirements
  • Partner cross-functionally with Windows/Apple Engineering, IAM, and Cybersecurity Governance
  • Deliver training, testing, and documentation as part of project scope


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Senior Security Hardening & Remediation Specialists — one focused on Windows 11 and one on macOS — to lead enterprise-wide endpoint security hardening and remediation across banking environment (Remote) [2026-51, 2026-52] • Victoria, CA

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