Manage enterprise IT infrastructure, including Microsoft 365 email, Cisco IronPort security, Active Directory, DNS, DHCP, public BIND DNS, Wi-Fi, endpoint management, patching, software deployment, backups, monitoring, scripting, troubleshooting, disaster-recovery drills, and audit compliance. Maintain secure and highly available services across on-premises environments and coordinate with security, audit, and risk teams.
Job Details
- Job Title: Associate – IT Infra Office Maintenance
- Years of Experience: 2+
- Education: BE/BTech
- Location: Chennai
RequirementsRequirements
Key Responsibilities
1. Managing on premises O365 Email Setup with secure Cisco Email Gateway for NPCI domain
Email Solution:
2. Managing Active Directory
Active Directory (AD):
3. Administration of Internet DNS server on open source
4. DHCP
5. Wi-fi Management
6. Endpoint Client Management tool
1. Managing on premises O365 Email Setup with secure Cisco Email Gateway for NPCI domain
Email Solution:
- Ensures email uptime for NPCI users & all SMTP application in order to keep NPCI business moving.
- Protect the NPCI MX email gateway from spam, cyber threats, malware, ransomware, spoofing and phishing attack.
- Secure NPCI email domain with enhancing email security protocol by stopping sender fraud with SPF, DKIM and DMARC.
- All Incoming & Outgoing clean mail accept and is deemed to be virus and spam free to avoid NPCI IP blacklist.
- NPCI Email Solution Integrated with Ironport and Active Directory for seamless mail delivery.
- Proactively reviews and resolves escalated call.
- On time version upgrade to closure of security vulnerability.
- O365 administrator, storage management, web hosting, troubleshooting skills, bash scripting, log management and automations, Ironport mail gateways management.
- Perform four email DR Drill activity with achieve schedule timeline with script to reduce the downtime during email Dr Drill.
- Coordinate with IS, Audit, and Risk team during internal and external audit for compliance and closure.
Active Directory (AD):
- Maintaining 10 internal AD servers with DHCP & DNS services.
- Replication the all AD servers for synchronization, net logon, time services, FSMO roles, schema, NTDS database partitions and DNS settings.
- AD health check-up & identify resource bottlenecks, troubleshooting and resolving problems.
- Installing patches & software upgrade to close audit observation.
- Creation scripting to avoid the manually error.
- DNS zone / Delegation creation and deletion on location AD servers
- Regular clean up on AD, DNS and DHCP.
- Manages AD DHCP scopes and configuring the new scopes.
- Creation of Group policy and maintaining the policy.
- AD Single Sign On User Windows Login, EPO, Email & Proxy for seamless access.
- Ensuring uptime NPCI public DNS.
- Maintaining NPCI sub-domain record types NS, A, MX, TXT, CMANE, SRV, PTR.. etc for quick response.
- NPCI Public DNS application is running at three DC locations on Linux Bind with free software.
- Upgrade the Linux OS and Bind application to closing audit points related to Public DNS servers.
- Weekly backup with script of NPCI DNS public Zone files.
- Monitoring from cache poisoning attack and protect DNS server with safe & secure connection.
- All NPCI subdomains FQDN seamless queries resolve for external world by authoritative on premise NPCI DNS servers.
- DHCP server Management
- Allow and Deny Mac Ids
- IP reservation
- Scope management
- Wifi Server Management
- Wifi Access point Management
- Patch Management
- Deploying of Software and Software Update
- Service Desk Management
- Inventory/Asset Management
- Management of AD, DNS, DHCP, O365, Iron port, Wifi, BMC client Management.
- Knowledge of Linux/Ubuntu and Mac OS
National Payments Corporation Of India (NPCI) Chennai, Tamil Nadu, IND Office
8th Level, VBC Solitaire,, 47 & 49 Bazullah Road, T. Nagar, Chennai, Tamil Nadu, India, 600 017,
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