Muthalagu Sekar
Technical Lead
Devakottai
Summary
To be in a position in a result-oriented company that seeks an ambitious and career conscious person where acquired skills will be utilized towards continuous growth and advancement of the business and my career.
Cloud Linux and Docker Administrator with 10+ years
Overview
13
13
years of professional experience
2
2
Certifications
Work History
Technical Lead
TECH Mahindra
10.2022 - Current
- Company Overview: [Client: Nissan]
- Setting up Automated backups (Amazon Machine Image/AMIs, Snapshots, Volumes) for all the environments in the project
- Working on biggest cloud environment around 4500 more servers at 54 Datacenter across world
- Monitoring system logs and root's email for important messages such as errors and warnings or hardware failure errors
- Created EC2 , EBS , ECS ,VPC , IAM and SNS - ARCHITECTURE using Terraform
- Worked on shell script and python script to automate specific tasks
- Installing postfix mail server on instance and SMTP configure with SES
- Experienced on Branching, Merging, and Tagging concepts in Version Control tool like GIT
- Flexible way of organizing future projects and adjusting to changing requirements without generating waste
- Maintaining RDS and Lambda credentials on secret manager
- As per project require, Providing IAM access to between AWS services
- White listing domain url and IP using code committing tool and Allow inbound and outbound rules through Security firewall
- Decommissioning of Linux Physical/Virtual Server in the weekend with prior approval
- Deployment Docker file and Maintaining ECS (Docker containers ) through Jenkins job
- Uploaded SSL certificate on ACM and attached with ELB load balancer
- [Client: Nissan]
Professional 1 Emerging Practices
DXC Technology
09.2021 - 10.2022
- Company Overview: [Client: Nissan]
- Handling various production issue related tickets within the SLA
- Configure Firewall and file encryption Security on systems using with Iptables, FirewallD & SeLinux
- Decommissioning of Linux Physical/Virtual Server in the weekend with prior approval
- Configuring the LVM stripping and adding the additional disk space as and when required
- Upgrading Aurora postgresql and customize parameter value
- Created S3 buckets and configured them with lifecycle policies to archive the infrequently accessed data to storage classes based on environment
- Creating EFS storage and mounted on different account instances
- Configuration of Amazon Cloud Watch Alarms and setting up the threshold limits
- Taking the instances snapshots and restoring the instances from backups
- Worked on Service now Ticketing & Incident Management tool
- Maintaining in Amazon Web Services environment and good knowledge of AWS services like Elastic Compute Cloud (EC2), Elastic Load Balancers (ELB),IAM, S3, Cloud Front, RDS, VPC, Route53, Cloud watch
- Configuration and setup of Amazon SSM Agent server console access
- [Client: Nissan]
IT SUPPORT SPECIALIST
ANPI India research and development pvt ltd
04.2019 - 08.2021
- Built and deployed Docker containers to break up monolithic app into microservices, improving developer workflow, increasing scalability, and optimizing speed
- Zabbix and Graylog tools monitoring experience
- Knowledge of Docker containerization and maintaining yml file in Gitlab
- Hands on experience in setup, configuration, upgrade, maintenance, performance monitoring and troubleshooting of servers running on different OS platforms like Linux, Windows platform
- As per project require change file and folder permissions
- Experience in writing basic Shell scripts for process automation of databases, applications, backup and scheduling
- Strong technical background in NFS, Disk Management, Logical Volume Management (LVM) and logical partitioning
- Maintaining MariaDB and PostgresSQL Databases and backups
- Monitor and take corrective action on CPU usage, Memory, and swap space utilization
SYSTEM ADMINISTRATOR
GGS Information Services India Pvt ltd
02.2018 - 03.2019
- Providing support for production issues on Ticketing Basis
- Changing File Permissions as per the client request
- Configuring the LVMs and adding the additional disk space as and when required
- Configured Samba (SMB) Server for sharing files in windows based systems
- Monitoring the Servers performance using with performance monitoring tools like top and ps etc
- Changing File Permissions as per the client request
- Configuring cron jobs in servers as per project requirement and monitoring it on weekly basis
- Installing, Configuring & managing VMware ESX5.0
- Monitor and take corrective action on CPU usage, Memory and swap space utilization
- Extensive experience in Installation, Configuration and Management of Red hat Linux and Suse Linux Operating Systems
IT SYSTEM ENGINEER
Red Sea Housing Limited
01.2017 - 11.2017
- Providing support for production issues on Ticketing Basis
- Creating the servers in AWS Console, security groups, Web servers
- Configuring & Troubleshooting on Samba,NFS,SSH,HTTP & FTP
- Downloading and transferring the data to corporate clients using FTP
- Managing NFS and SAMBA in a client-server architecture
- Maintenance the critical Backup and Restore using all sync software
- Monitoring of DHCP Scopes and reservation
- AD User creation & Group & OU Manage, DNS, DHCP Managing
SYSTEM ADMINISTRATOR
CMS Info Systems and Career One Solution Pvt. Ltd
05.2012 - 10.2016
- Company Overview: [Client: Saint-Gobain]
- Managing users & groups in RHEL 7.0
- Installing RHEL and ubuntu operating system
- Setting the permission for files and directory, Assign the special permission & Soft links / hard Links
- Maintenance of Software licenses and usage monitoring
- RAID Configurations and Disk management utilities tools
- Co-ordinate with Core IT Team for Service level issues
- Working with User Privileges commands and finding the unauthorized users
- Provide Software, Hardware and Network Support, as well as Operating System loads and organizational
- Maintaining and reviewing Microsoft patches using SCCM client
- Assisted clients with technical issues, troubleshooting, installation and configuration
- Interacted with users in to support software and hardware transition
- [Client: Saint-Gobain]
Education
B.Sc - COMPUTER SCIENCE
Alagappa University
D.I.T - INFORMATION TECHNOLGY
APP College
Skills
Windows
RHEL
Ubuntu
SUSE Linux
AWS RDS
MySQL
PostgreSQL
MariaDB
EC2
VPC
Transit-G/W
S3 System Manager
ELB
R-53
RDS
EFS
CloudFront
Secret Manager
IAM
Shell script
Python
GIT
GITLAB
Terraform
Jenkins
Cloud Watch
Zabbix
Docker
Shell scripting
Certification
AWS SAA-C03, YZ7EVXXKCFQQ1QW4
Expectedemploymentstatus
Full time
Disclaimer
I, hereby declare that the above mentioned particulars are true to the best of my knowledge. If a chance is given to me, I would leave no milestone unturned to prove my worth.
Personal Information
- Passport Number: L4135307
- Date of Birth: 07/02/89
- Marital Status: Married
Timeline
AWS Certified DevOps Engineer - Professional, 3c6b921a84024b158e11e4795fd9783b
05-2024
Technical Lead
TECH Mahindra
10.2022 - Current
Professional 1 Emerging Practices
DXC Technology
09.2021 - 10.2022
AWS SAA-C03, YZ7EVXXKCFQQ1QW4
07-2021
IT SUPPORT SPECIALIST
ANPI India research and development pvt ltd
04.2019 - 08.2021
SYSTEM ADMINISTRATOR
GGS Information Services India Pvt ltd
02.2018 - 03.2019
IT SYSTEM ENGINEER
Red Sea Housing Limited
01.2017 - 11.2017
SYSTEM ADMINISTRATOR
CMS Info Systems and Career One Solution Pvt. Ltd
05.2012 - 10.2016
B.Sc - COMPUTER SCIENCE
Alagappa University
D.I.T - INFORMATION TECHNOLGY
APP College