KALISHWARAN VAIRAVAN, IT Network Engineer

KALISHWARAN VAIRAVAN

IT Network Engineer

OMNIYAT MIDDLE EAST INVESTMENTS & MANAGEMENT LLC

Location
United Arab Emirates - Abu Dhabi
Education
Bachelor's degree, Computer Science And Engineering
Experience
6 years, 11 Months

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Work Experience

Total years of experience :6 years, 11 Months

IT Network Engineer at OMNIYAT MIDDLE EAST INVESTMENTS & MANAGEMENT LLC
  • United Arab Emirates - Dubai
  • April 2023 to October 2023

● Designing and planning network infrastructure to meet the organization's requirements.
● Installing and configuring routers, switches, firewalls, and other networking equipment.
● Administered systems including Windows OS, Active Directory, Monitoring, Data Server, Exchange, DNS, and SharePoint, as well as solutions like Privileged Access Management.
● Setting up and maintaining network services such as DNS, DHCP, and IP addressing.
● Implementing security measures to protect the network from unauthorized access and attacks.
● Optimizing network performance through regular maintenance and upgrades.
● Developing and implementing disaster recovery plans for the network infrastructure.
● Managed Microsoft 365 environments, including user accounts, licenses, and security settings.
● Managed SharePoint Online, creating and maintaining sites, libraries, and permissions.
● Implementing and maintaining communication tools like Microsoft Teams for chat, video conferencing, and collaboration.
● Managing M365 subscriptions, licenses and optimizing license usage and ensuring compliance with licensing agreements.
● Install, configure, and manage SQL Server instances, including version 2008R2 and 2014.
● Develop and optimize T-SQL queries, contribute to database schema design, and participate in data migration projects for SQL Server 2008R2 and 2014 environments.
● Apply service packs and patches to maintain a secure and up-to-date environment.
● Implementing wireless security measures such as WPA3, encryption, and access controls.
● Implementing security measures such as access control lists (ACLs) to control traffic flow and restrict unauthorized access

Ict Engineer at BROADCOM TECHNICAL CONCEPTS LLC
  • United Arab Emirates - Abu Dhabi
  • October 2021 to November 2022

● Install, configure, and maintain operating systems on servers and workstations.
● Set up and manage user accounts, permissions, and access controls
● Configure and manage network devices such as routers, switches, firewalls, and VPNs.
● Apply software updates, patches, and service packs to maintain system security.
● Designed and implemented ELV systems, including security systems (CCTV, Access Control, Intrusion Detection), telecommunications, and audio-visual technologies.
● Conducted site surveys and collaborated with stakeholders to determine project requirements and specifications.
● Implemented structured cabling solutions to support various ELV systems, ensuring efficient data and signal transmission.
● Managed ELV projects from conception to completion, including project planning, budgeting, and resource allocation.
● Integrated ELV systems with existing infrastructure, ensuring compatibility and optimal performance.
● Conducted testing and commissioning of ELV systems, troubleshooting issues and ensuring reliability.
● Provide technical support to end-users, addressing hardware, software, and network issues.

IT Engineer at VINAYAKA ENGINEERING & ENTERPRISES
  • India - Madurai
  • April 2020 to August 2021

● Managed IT operations for 300+ users across different vendor setups, ensuring seamless functionality.
● Oversaw a team of 5-8 IT professionals, providing leadership, guidance, and mentoring to ensure high-performance standards.
● Collaborated with various vendors to negotiate contracts, manage service level agreements (SLAs), and optimize IT solutions.
● Implemented and maintained network infrastructure, ensuring security and optimal performance.
● Led the planning and execution of IT projects, including system upgrades, migrations, and integrations.
● Coordinated user support activities, troubleshooting hardware, software, and network issues promptly.
● Implemented IT security measures, including antivirus management, and firewalls.
● Conducted regular training sessions for the IT team, ensuring skill enhancement and knowledge sharing.

IT Support Engineer at AL OMEIRA PRINTING & PUBLISHING CO. LLC
  • United Arab Emirates - Dubai
  • May 2018 to January 2020

● Provided end-to-end IT support, addressing hardware, software, and network issues for internal users.
● Configured and maintained network routers, switches, and firewalls to ensure optimal performance.
● Proactively identified and resolved IT issues promptly to mitigate risks and ensure uninterrupted workflow, contributing to high productivity levels.
● Played a key role in risk management by implementing robust security measures and conducting regular network assessments.
● Troubleshoot machines associated with banking processes and ensure network connectivity.
● Documented and communicated identified risks and their resolutions, contributing to knowledge sharing and continuous improvement.

IT Support Engineer at CRYSTAL ELECTRONICS PVT. LTD
  • India - Chennai
  • April 2016 to March 2018

● Provided end-user support, troubleshooting hardware, software, and network issues to ensure seamless daily operations.
● Installed, configured, and maintained desktops, laptops, and peripherals.
● Conducted system diagnostics, identified issues, and implemented timely resolutions.
● Administered user accounts and permissions, ensuring data security and access control.
● Collaborated with cross-functional teams to implement IT projects and upgrades.
● Administer security, manage backups, and monitor database performance, addressing bottlenecks and optimizing indexes in SQL Server 2008R2 and 2014 instances.
● Assisted in the development and implementation of IT policies and procedures.
● Maintained documentation of IT systems, configurations, and support processes.
● Contributed to IT security measures, including antivirus management and user awareness.

Education

Bachelor's degree, Computer Science And Engineering
  • at Anna University
  • April 2015

Specialties & Skills

Extra Low Voltage ELV
Troubleshooting
Microsoft Office Suite
Windows Server Administration
IP Networking
SQL Server
Microsoft In-tune
Office 365 Administration
IT Infrastructure
Microsoft Azure
ERP Functional
IT Support
Windows Server
Virtualization
Network Infrastructure
Extra Low Voltage Systems
Networking

Languages

English
Expert
Tamil
Native Speaker
Malayalam
Expert
Hindi
Intermediate
Urdu
Intermediate

Training and Certifications

RUIJIE SPECIALIST ENGINEER (Certificate)
Date Attended:
October 2022
Valid Until:
October 2024
DIPLOMA IN COMPUTER HARDWARE AND NETWORK ENGINEERING (Certificate)
Date Attended:
November 2016
ISC2 Cyber Security (Training)
Training Institute:
ISC2
Date Attended:
November 2023
Office 365 Administration (Training)
Training Institute:
Microsoft
Date Attended:
May 2022
CISCO CERTIFIED NETWORK ASSOCIATE - CCNA R & S (Certificate)
Date Attended:
December 2019
Valid Until:
June 2023