Job Details • Job Title: Associate – IT Infra Office Maintenance • Years of Experience: 2+ • Education: BE/BTech • Location: Chennai Requirements Requirements Key Responsibilities 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. 2. Managing Active Directory 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. 3. Administration of Internet DNS server on open source • 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. 4. DHCP • DHCP server Management • Allow and Deny Mac Ids • IP reservation • Scope management 5. Wi-fi Management • Wifi Server Management • Wifi Access point Management 6. Endpoint Client Management tool • 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