Principal Security Consultant - Contractor
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We are looking for a Principal Security Consultant to lead and manage security operations with a strong focus on Microsoft 365 security, threat protection, and data security. This is a senior hands‑on role responsible for designing, implementing, and maintaining security controls across all environments, ensuring compliance, and strengthening overall security posture.
Responsibilities
- Design, configuration, and continuously enhance Microsoft 365 security features including Microsoft Defender for Office 365, Defender for Endpoint, Azure AD Conditional Access, and Purview Compliance tools.
- Manage and optimize the organization’s email gateway solution (e.g., Microsoft Defender, Proofpoint, Mimecast), ensuring effective spam filtering, anti‑spoofing, control and protection against phishing and malware threats.
- Lead the implementation, monitoring, and refinement of Data Loss Prevention (DLP) policies across endpoints, email, and cloud environments to prevent unauthorized data access and leakage.
- Administer and enforce application whitelisting policies using AppLocker, Windows Defender Application Control (WDAC), or other tools to ensure only approved software runs in the environment.
- Collaborate with IT, compliance, and leadership teams to ensure security measures align with business goals and regulatory requirements.
- Respond to and lead investigations of security incidents and develop incident response plans and actionable playbooks to enhance organizational preparedness.
- Provide technical leadership, mentorship, and guidance to security engineers and analysts, fostering professional growth and a culture of continuous improvement.
Requirements
Bachelor’s or Master’s degree in Cybersecurity, Computer Science, or related discipline.10+ years of hands‑on experience in cybersecurity, with a focus on enterprise environments.Proven expertise in Microsoft 365 E5 security tools and administration.Strong experience managing and securing email gateways, DLP policies, and application whitelisting technologies.Deep understanding of endpoint protection, identity security, and threat detection and response.Familiarity with security standards and compliance requirements (e.g., ISO 27001, NIST, NCA, GDPR).Relevant certifications such as MS-500, Microsoft Certified : Cybersecurity Architect Expert, CISSP, or CISM are a plus.Preferred Skills
Knowledge of PowerShell scripting and automation for security tasks.Background in incident response and security operations in a hybrid cloud environment.Seniority level
Mid‑Senior level
Employment type
Contract
Job function
Information Technology
Industries
IT Services and IT Consulting
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