System Administrator Active Directory

AWS Cloud

Vmware Esxi

Windows server ****

Nginx NagiOS Puppet

O365

Fortigate Firewall

LINUX

AD Migration Fileover Cluster

Azure AD

Github

Cisco Networking

Grafana

WSUS Patching

Xcitium Endpoint Security management

My SQL

DNS IIS DHCP WDS

FTP NFS SAMBA SAN

KEY SKILLS

WORK EXPERIENCE

Senior System Administrator

COMODO SECURITY SOLUTIONS PVT LTD.

06/2021 - 03/2024 Chennai, India

Roles and Responsibilities

Active directory domain configuration, AD users and computer management, group policy maintenance DNS, DHCP, and application server configuration and maintenance Deep knowledge of Wintel platforms and networking infrastructure (workgroup, Domain, PDC/BDC, DNS,WINS, DHCP)

Patch management, storage administration.

Linux server setup, configuration, upgrade, maintenance, performance monitoring, and troubleshooting on different Linux flavours like SUSE, Red Hat, CentOS, and Ubuntu. Installation, Configuring, and Maintaining Open Source Tools. Volume management, disc management, LVM, and ZFS.

Samba file server Configuring and maintaining group and user access permissions. Nginx server configuration and maintenance

Configuring and maintaining Linux-based services like DNS, Mail, HTTP, Apache Tomcat, SMTP, FTP, and NFS. Monitoring and Resolving the Configured Server Alerts by Nagios, Zabbix 3.0 Tool. Data Encryption and Decryption (Bit Locker) and Data Loss Prevention. Taking the configuration backup of devices and apps. Puppet server configuration and maintenance (for automation) Gitlab maintenance VM maintenance and configuration (VMware, Xen server) In AWS VPC,EC2 instance creation and maintenance, S3 bucket, firewall roll, VPN configuration. Ticketing tools: Maintain Jira and Freshdesk.

Mail administration is handled by the Office365 Admin Panel. Cisco and Juniper Configuring the Router,firewall, Switch, Modem,etc. Sathish Kumar K

Senior System Administrator, Comodo Security Solutions Pvt Ltd To achieve a challenging career in IT Administration, I would strive to be a valuable resource contributing towards companies and personal growth in the chosen area of work. Driven Systems Administrator with 5.8 years of experience in software implementation and maintenance. Proven history of managing complex infrastructures and data center operations. Expert in solutions-oriented business application problem-solving and dedicated to providing best-in-class service. Skilled at troubleshooting, communication and collaboration.

**.**********@*****.*** +91-997*******

Chennai, India linkedin.com/in/sathishkumark

Customer Support Engineer

AFORESERVE.COM LIMITED

11/2018 - 06/2021 Chennai, India

Roles and Responsibilities

Active directory domain configuration, AD users and computer management, group policy maintenance DNS, DHCP, and application server configuration and maintenance. Deep knowledge of Wintel platforms and networking infrastructure (workgroup, Domain, PDC/BDC, DNS, WINS, DHCP) Troubleshoot and administer Active Directory (AD), DNS, DFS Replication, and Group Policy Object (GPO) issues.

Troubleshoot VMware, Hyper-V, and Microsoft Azure (basic) issues. Troubleshoot and administer Disk capacity and File sharing-related issues. Switch, Router Configuration, and Troubleshoot Monitoring and Resolving the Configured Server Alerts by the Zabbix 3.0 Tool.

Network security and activity control by the Dell Sonicwall NSA4600 Firewall. Managing Active Directory Domain Services Objects. Configuring a Linux server and mounting storage volumes. Mail administration is handled by the Office365 Admin Panel. Penetration Test for Important Updates of Devices and OS. BCP-Business Continuity Plan if there is any emergency. Configuring the router, firewall, switch, modem, etc. Data Encryption and Decryption (Bit Locker) and Data Loss Prevention. Hardware And Network Engineer

BEST COMPUTERS

09/2016 - 09/2018 Chennai, India

Hardware And Network Engineer

WOORY AUTOMOTIVE P.LTD

06/2013 - 08/2016 Chennai, India

Roles and Responsibilities

Resolving the problems in Windows & Mac Desktop/Notebooks. Mails configure in Windows, Mac and Handset

Configuring printers and scanner’s in Network

Maintain Hardware & Software inventory by OCS Server Installation of OS, External applications & Updates. Ghost Image Processing for Backup & Restore (Symantec, Norton & Clonezilla) Troubleshoot technical issues and escalate complex problems to appropriate support teams for resolutions

Hardware And Network Engineer

XPLORE SYSTEMS SERVICES

05/2011 - 05/2013 Mayiladuthurai, India

Roles and Responsibilities

Installation of OS, External applications

Expertise in Assembling and disassembling Desktop, Laptop Experience of handling onsite services

Installing and configuring new hardware/software in Network Installing and troubleshooting burglary alarm, biometrics attendance system Installing and troubleshooting CCTV Camera, DVR and NVR. Materials Inward & Outward.

EDUCATION

BSc Computer Science - BSc CS

Alagappa University

2020 - 2022 Karaikudi, Tamil Nadu

Diploma in Computer Science Engineering

Aarooran Polytechnic College

2008 - 2011 Tiruvarur, Tamil Nadu

HSC

Govt.Higher Secondary School

2008

Tiruvarur, Tamil Nadu

SSLC

Govt.High School

2006

Tiruvarur, Tamil Nadu

PERSONAL DETAILS

Father’s Name : S.Krishnamoorthy

Date of Birth : 20-05-1991

Sex : Male

Marital Status : Single

Languages Known : English, Tamil

ADDRESS

Present Address: No: 8/38, Ground Floor, Balakrishna Street, Adambakkam, Chennai 600088 Permanent Address: No:242, Netaji Street, Veedhividangan, Nannilam(Tk),Truvarur (Dt), TamilNadu Pin: 610107

DECLARATION

I hereby state that the above information furnished by me is true to the best of my knowledge. Date:

Place: (SATHISHKUMAR K)

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