Senior System Administrator

3 days ago

Pune, India ONIT Full time

Job Description Job Description: - Onit, Inc. is seeking a Senior Systems Administrator to manage and optimize a diverse global IT cloud infrastructure. - The role focuses on Microsoft 365, Entra ID, SSO, Exchange administration, Email Security (Mimecast), and IT governance while contributing to cross-functional initiatives. Key Responsibilities: Microsoft 365 & Exchange Administration: - Manage user accounts, licensing, permissions, and roles across multiple M365 tenants. - Manage Exchange Online mail flow, retention policies, and security measures (Mimecast). - Implement security protocols like MFA, Conditional Access, and threat management. - Migrate and Manage One Drive, SharePoint and MS Teams. - Ensure compliance with regulations (e.g., GDPR) and manage eDiscovery and audit logs. Platform Optimization: - Monitor platform performance and usage, recommend cost-saving optimizations. - Develop governance policies and stay updated on the Microsoft roadmap. Backup, Recovery, and Security: - Configure backup solutions and update disaster recovery plans. - Utilize Mimecast for filtering, encryption, archiving, and continuity. IT Infrastructure Support: - Manage hosting, domain, and Cloudflare. - Collaborate on AWS infrastructure projects. Required Skills: - 8+ years as Global Admin for M365, Entra ID & Exchange administration, including automation and migrations. - Proficiency in PowerShell for scripting and administration. - Expertise in email security (Mimecast), protocols (SMTP, POP3, IMAP) & Security Standards (SPF, DKIM, DMARC) - Experience with Azure AD, IAM, and compliance frameworks (NIST, GDPR, ISO 27001). - Knowledge of CrowdStrike, Cloudflare, and Zero-Trust principles. Preferred Certifications: - MS-102:Microsoft 365 Administrator - Microsoft 365 Certified: Messaging Administrator Associate - SC-300:Microsoft Identity and Access Administrator

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