Senior Administrator Windows
Dubai World
Total des années d'expérience :26 years, 3 Mois
Role
Administrating a sophisticated network infrastructure of 25000+ users with more than 90 SMTP domains and multiple SharePoint Portals for different BU’s.
Technical Project Manager for multiple infrastructure projects of migrations, development and enhancements involving Windows, Exchange, SharePoint, Forward / Reverse Proxies, Enterprise Vault, Blackberry, SQL Servers, K2 Black Pearl, Oracle, Active Directory, Hyper-V, VMware & Citrix.
Provide assistance and coordinate between Service Deliver Team to close Audit findings.
Assist Teams to develop Policies and Procedures for ISO 27001 Certification.
Accountable for the designing, implementation and administration of:
Windows 2008 / 2003 Active Directory network with multiple sites.
Exchange 2010, SharePoint 2010 builds on Hyper-V environment running Windows 2008 R2.
Forefront TMG / UAG servers to act as reverse and forward proxies. Publishing Exchange and SharePoint Servers for SMTP / IMAPS / Active Sync / Outlook Anywhere & OWA, multiple other applications and web services / portals.
Lync / OCS for Unified Messaging. Blackberry Enterprise servers for more than 3000 users.
Archive solution for Exchange via Symantec Enterprise Vault.
Ironport C600 and C300 series devices to act as mail gateways for Exchange Servers to provide services of Anti-spam, Anti-virus, Content Filters and Email Encryption for internal and external emails & Integration with Directory Servers (Active Directory) via LDAP.
Group & System Policies, DNA, DHCP and other network infrastructure services.
Producing Daily / Monthly / Yearly reports for Exchange, SharePoint, Blackberry, Iron Ports and Enterprise Vault Servers with the help of data generated during daily monitoring best practice analyzer tools.
Integrate ORACLE and other 3rd party applications with Exchange servers for mass mailing. Backup and Disaster Recovery process and procedures for Exchange & SharePoint environments.
Highlights
Successfully implemented Change Management to ensure minimum downtime / outage post implementation of a change to the Messaging & Intranet Infrastructure.
Completed professional development Training for site engineers to ensure reduction of number of problems in month and month basis and to ensure high quality of service delivery for all the Business Units
Formulate and direct Implementation of IT Policy and Procedures to meet the standards.
Execution and delivery of IT projects efficiently & effectively in respect to time, budget and quality.
Planning, implementing and monitoring / controlling for all projects including estimation, Budget and timely delivery of Systems. Work towards the commitment for all on-going projects with committed quality.
Manage IT Risk & Establish, propagate and ensure conformance to business continuity and security domain / standards via the Architecture Management Process including Disaster management.
Define, implement and manage Business Continuity and Security risk assessment process.
Demonstrating a high level of technical proficiency by rendering expert advice to manage sophisticated network infrastructures as senior systems engineers for a reputable IT solutions provider in Dubai.
• Relying on extensive knowledge and certified qualifications to plan and perform migrations of all competent operating systems to Windows 2003 from NT/2000 and upgrade mail server services to MS Exchange 2003.
• Pioneering the installation and deployment of Active Directory LDAP services for company clients in more than 30 sites, implementing result-oriented backup plans to recover data and settings for disaster management.
• Restructuring systems architectures to deploy SAN cluster servers with Windows, Exchange and MS SQL servers. Managing RAID-LEVELS, Group & System policies, user profiles, permissions, Terminal Servers, RRAS servers and VPN connections.
• Setting up and supporting backup software such as ARCSERVE & VERITAS, securing SMTP gateways between Exchange servers and communication pipelines for ISA server with H.323 Gatekeeper for video conferencing.
Achievements:
• Masterminded the centralization of application execution on servers by effectively implementing and managing Citrix Metaframe with all Access Suite Components. Administered the accelerated delivery of ERP, CRM, Web and office productivity applications in a consolidated environment through secure internet connections and browsers.
• Established core infrastructures with multi-environments, configured virtual server, public folder trees, storage groups & instant messaging, meetings, tasks assignments, notes & calendars scheduling with Exchange.
• Authorized internet access through ISA Server, distinctly completed network roll-out projects for more than 50 clients preceding assigned timelines and with lower expense costs.
• Analyzed physical and technical risks to data, software &hardware. Accomplished many recoveries of Active Directory &Exchange repositories during catastrophes.
Held a Network Administrator role, assessed, documented and augmented the capacity and performance of IT and communication system arrangements for more than 1500 end-users and company resources..
• Planned and maneuvered systems transition to Windows 2000 & NT 4.0, handling all aspects related to network connections, security rights, firewall installations, mail services and application centralization for various educational institutes.
• Identified technology requirements and spearheaded the deployment of network systems in more than 20 school districts, fostered guidance to clients to ensure smooth handover of functional accessibility operations and successfully completed assignments within dedicated timelines and budgets.
• Demonstrated excellent business process improvement aptitude with supporting IT savvy contributing in multiple areas related to: messaging infrastructure (servers, replication, and mail routing), performance optimization, disaster management and contingency planning, virus protection and security control.
• Scheduled project plans, monitored execution with a team of engineers, facilitated installations and attended meetings with customers to highlight progress and areas of concern.
Achievements:
• Completed professional development MCSE certification programs for global clients like: Shell Pakistan, APL, Core Laboratories, HSBC, Citibank and other reputable finance institutions..
• Orchestrated the administration of Lotus Notes Domino 5.0 without causing disruption to client business operations, expertly managing repositories, links, configuration, and backups.
• Compiled technical documentation, systems troubleshooting and support guides, operated master consoles and ensured optimal performance of mail routing, replication agents, SMTP mail & clusters.
Provided network engineering consultancy services to maintain a 24 hour operational model with a sophisticated Microsoft based infrastructure including Exchange, IIS and Proxy server 2.0 in 6 different branches.
Achievements:
• Downsized IT operational costs by 50%, centralized data center operations, granted remote access withholding application redundancy, ensured optimal bandwidth of communications through VPN and configured user permissions.
• Played an integral role in enhancing the output of business applications like helpdesk, ERP, CRM and others by re-engineering operational platforms and communication standards. Minimized average hold times to less than 20 seconds.
• Expertly handled systems mal-functioning, improved performance to 100% by enhancing settings and network integrations, employing MCSE and CCNA qualification savvy to resolve discrepancies.
• Planned and executed the upgrade from NT 4.0 to Windows 2000 and MS Exchange 5.5 to 2000 versions with minimal disruptions to business operations, completed the deployment of a fully functional lab with MS SQL server database.
• Implemented extended access list on the routers for security and Firewalls with the proxy server. Configured routing protocols (OSPF & RIP), TFTP server to upgrade IOS in router and VLAN on Cisco Catalyst 5000. Applied audit and policy settings on servers and desktop machines.
Infrastructure used: Cisco 2503 series routers. Compaq Proliant mid and high range servers; IBM Netfinity Server 5500/3000, 340 and Aptiva.
PMP Certified
Windows Server 2008 Active Directory Windows Server 2008 Application Platform Windows Server 2008 Network Infrastructure
Exchange 2007 Certification
Certified by Citrix, Cleared all online papers.
MCSE - Windows 2000 Track attained in 2001 OTHER COMPLETED CERTIFICATIONS: • January 2001: Information Technology Diploma, Computer World • September 1999: A+ Certification, CTTC • July 1999: Advance Cisco Router Configuration – ACRC,CTTC • June 1998: Microsoft Certified Systems Engineer + Internet Specialist - Windows Nt4.0 Track
Certified by Microsoft, cleared all online papers, previous certifications include: • June 1999: Microsoft Exchange Server 5.5
Successfully completed the bachelors program in science with Honors.
Ceritified by Cisco All online papers are cleared
Ceritified by Microsoft All online papers are cleared