Theodor Pereira

Instrumental role in IT Service Management across 3 continents - 17 regions, which includes Europe, Middle East & Asia
Center of Excellence (COE) with level 2 & level 3 support
Lead an overall team of 35 IT professionals, directly and indirectly on various projects in Applications / Systems / Storages / Networking & Security in design guidelines, implementations, integrations & migrations.
Key role in Data Center Operations Management with inputs to key stakeholders in timely manner. Systems virtualization for business offices on VMware, Microsoft Hyper-V & Oracle VM Server Infrastructure.
Enterprise Storage Management (Dell PowerVault MD3860F / IBM DS3512 / IBM Storwize V3700 / HP StorageWorks P2000 / QNAP E-Seriers / QNAP T-Series).
Physical & Virtual Infrastructure Management (Health / Performance / Event Monitoring / Vulnerability Management / Patch Management)
Network & Systems Architecture Design & Implementations (Data Center / Head Quarters / Regional Offices / Site Offices)
Data & Systems Backup & Replication administration & management inline with organization backup policies. (Veritas / Veeam / etc.)
Plan & design Systems Business Continuity, which includes High Available Systems/Application Clusters & Disaster Recovery Solutions.
Systems, Storage & Data Migrations. (Exchange / MailStore / File Servers / VMware Data stores & Operating Systems)
Administer Monitoring & Reporting Systems (NOC)
Capacity Management, Systems GAP Analysis & Corrective Action Plans
Technical & Business documentation on Infrastructure, Systems & Network along with Visio Diagrams & SOPs for IT and Business Users.
Good working knowledge of Public Domain & DNS systems.
Microsoft Active Directory (ADDS) implementation with Primary/Secondary & Read Only Servers across business offices
Microsoft Exchange 2013 & 2016 with Multi-tenant hosting Management with 6900+ mailboxes.
Barracuda & SPAM Experts Enterprise Anti-SPAM Systems Administration
Linux Systems deployment & administration (RedHat / CentOS / Ubuntu / SuSE)
Microsoft Lync 2013
Microsoft SCCM
Enterprise Mobile Device Management solutions for Android/iOS & Blackberry mobile devices using MobileIron, AirWatch and Blackberry UEM
NComputing with vSpace Virtual Desktop Infrastructure management server systems implementation.
Deployed and administered Microsoft Network Policy Server
Perimeter Firewall (SonicWALL) management
NetFlow and firewall log analysis to identify various packet behaviors using OP Manager Plus Firewall Analyzer modules
HP L3 and L2 switching administration and hardening with Firmware Upgrades, Dynamic ARP Inspections, DHCP Snooping, STP implementation, etc.
Secure Wired & Wireless LAN networks with 802.1x Authentication, Dynamic VLANs & captive portal for Guest Logon
Manage Genetec CCTV and Access Control Systems for HQ
Implementation & Administration of Fortinet Internal Segmentation Firewall 500E
Secondary Administration for FortiWeb 400C Web Application Firewalls
Deployed Elastics ELK Stack Syslog server for systems log storage & analysis
Deployed NOC & SOC with VDI infrastructure
Microsoft Certificate Authority
Systems Hardening, Optimization & Performance Tuning using CIS Benchmark
Manage external Vulnerability Assessment and Penetration Testing
Overlook & Manage Anti-Virus & End point protection Systems
Dig and Analyze System Event Logs for various business related investigations
ISMS 27001:2013 implementation
Windows & Linux Systems integration and collaboration with unified and centralized (SSO) user access / IT Administrator stations / application data integrity across multiple business systems.
Systems Evaluations (POC) & Feasibility of new technology and enhancements.
Ensured compliance within the IT Department by ensuring all changes to the system adhere to ISO 9001 standards and guidelines.
Successfully delivered multiple projects on systems, networks, digital storage, security, infrastructure and data center along with business stakeholders & vendors.

A hosted cloud service provider, providing SaaS, PaaS and IaaS.
Actively contributed to systems implementations, administration, upgrades, troubleshooting & client support.
Contributed towards virtual IT Infrastructure/Data Center built and migration of systems and services.
Worked on wide range of Messaging systems, which includes Microsoft Exchange, Zimbra, ActiveSync Servers, Postfix (SMTP Engine), Asterisks IP PBX Systems, etc.
Widely worked on Linux platform to build various open source solutions based on Ubuntu, SuSE, CentOS and RedHat.
Managed Public DNS servers & Public Domain hosting for clients.
Had the opportunity to be a part of Oracle RAC installation & SQL Cluster implementation on different occasions.
Supported Application and Systems upgrade for clients.
Setup and deployed Microsoft Active Directory Federation Services for clients.
Deployed an automated VMWare Cluster with DRS, vMotion & Anti-Affinity Rules.

Core Infrastructure Management: Data and System Backup Management
Deployed & Administered Asterisk IP PBX telephony system, replacing Panasonic PABX with rich telephony features at minimal cost.
Redesigned IT Infrastructure to optimize & standardize resources and systems.
Administered Cisco ASA 5520 firewall in HQ.
Administered SUSE based Linux Firewalls, Squid Proxy Servers, Hylafax eFax system, Postfix SMTP, OpenVPN, etc., across business offices.
Planned, Deployed & Administered Biometric & Access Control Systems along with vendor with centralized time and attendance reports for HR functions.
Implemented Server Virtualization on VMware Type-I hypervisor.
Inkjet and office jet printers replaced with minimal Multi-Function Printers across business offices.
Managed Wireless Systems for the group.
Introduced DU corporate business plans with reduction in monthly rentals and low call rates.
Systems Administration & Management: Managed Microsoft Active Directory across business offices.
Administered Microsoft Exchange 2003 in conjunction with Google Mail Hosting using POP Connectors.
Administration & Support for in house Oracle based ERP System
Supported Blackberry communication on BIS.
Incorporated Technical Support to business offices & users.
Coordinated website build and go live with the vendor.
Managed vendors, AMCs and coordinated payments.

Network Administration: Worked extensively on Fiber Optic networks, which included implementation and troubleshooting.
Deployed and supported LAN networks and Firewalls.
Administered Dell Sonicwall NSA E5500 Firewall
Worked on long and short-range wireless solution with MikroTek, DLink and TPLink using Grid & Omni Antennas.
Deployed Hotspot solutions with Cyberoam 24Online.
Installed and managed L2 Cisco Catalyst Switches
Supported Wireless solutions for large hotel groups.
IP Addressing design & Implementation
ISP Bandwidth & Link monitoring.
Managed relation with business clients.

Network Administration: Installation & Configuration of Cisco Switches (1700, 2950) and Routers (1800, 2600, 3600).
Sound understanding of SIP protocol & VoIP implementation.
Knowledgeable in Spread Spectrum wireless technologies like Smart Bridges, Proxim, ARGtek CPE 2615 & PointRed. (Access Points & Subscriber Units)
Investigate & Rectify operational shortcomings in networks & recommend corrective action to franchisees.
Sound understanding of NOC (Network Operations Center) setup & operations.
Base Station installations and maintenance.
Commissioning of new corporates sites on MPLS.
Managed and supported Sify Iway (Internet Cafe chain) business partners, for various concerns and escalations.
Level 1 & 2 escalation support for Field Technical Support teams.
Lead the local technical support team for the region for Sify Broadband and Iway Operations.
Participated in various feasibility studies & carried out frequency planning & interference analysis on licensed & un-licensed frequencies.
IT Asset management for local office.
Manage & maintain last mile customers on wireless network.