Senior System Administrator

Pune, Maharashtra, India
Full Time
Mid Level
Senior System Administrator
Location: Pune, Maharashtra, India

Onit, Inc. is seeking a Senior Systems Administrator to manage and optimize a diverse global IT cloud infrastructure. The role focuses on Microsoft 365, Entara 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, Entara 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
About Onit:
Onit is a global leader in enterprise workflow solutions, transforming business processes in Legal, IT, HR, and Finance with cutting-edge platforms and smarter workflows.
 
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