Linux Administrator at Aress Software solution (P) Ltd. (2015-07 – Present)
As System Administrator Linux, responsible for performing Installation, configuration, and maintenance of LINUX operating systems within a business. Analyzes and resolves problems associated with the operating system's servers, hardware, applications, and software. Detects, diagnoses, and reports LINUX related problems on servers.
- Installing, configuring, and maintaining Linux Almalinux, cloudlinux RHEL 8x, 7x, 6x; OL6x, 7x.
- Strong background in Linux/Unix administration and understanding of scripting.
- Problem-solving skills and experience in IP networking and static routing FTP, SSH, SMTP, DNS, HTTP/S, DHCP, Syslog logging facility.
- Performance tuning and optimizing server configurations for specific workloads.
- Administering Disk, Volume group, LVM, NFS, automount and troubleshoot various file system related issues.
- Remediate/mitigate vulnerabilities by scheduling change requests.
- Client-side configuration of LDAP and troubleshoot various user issues.
- Good knowledge on Job Scheduling using Crontab.
- Configured KDUMP on servers to capture crash/kernel dumps and analysis of dumps to determine the root cause.
- Experience with automation/configuration management using Puppet, Ansible or an equivalent.
- Experience on Firewalls (IPTABLES)
- Knowledge on Red Hat satellite server and RHN
- Experience with SNMP based Monitoring.
- Experience in visualization and NAS configuration on server (Multipathing)
- Hands on experience of OS Patching and handling post-patching issues.
- Hands on experience on VMWare VSphere Client, to manage VM and build the customized templates.
- Vendor coordination and hardware knowledge on HP ProLiant, Dell PowerEdge.
- Administering Mail issues and Troubleshooting skills (mailx, sendmail. etc).
- Knowledge on SAN and NAS storage.
- Strong concepts of networking like TCP / IP, TCP dump.
- Good understanding of Incident, Change, Problem Management process and provide the RCAs on P1 tickets.
- Good Knowledge on AWS service EC2, s3, VPC, Elastic load balancer and route 53.
Linux Administrator at ESDS Software solution (P) Ltd. (2012-11 – 2015-06)
Functioned as primary Linux administrator and systems engineer to maintain system services and performance – Planned and executed Linux system changes and upgrades.
- Monitored the servers and Linux scripts regularly and performed troubleshooting steps – Tested and installed the latest software on server for end-users.
- Attended calls related to customer queries and complaints, offered solutions.
- Performed routine, proactive check on the Linux, windows servers of the firm.
- Maintained necessary back-up of the important files and documented Linux scripts for future reference.
- Maintained existing programs/scripts and extended Linux system functionality as needed.
- Researched the market to gain information on the latest updates available and recommended accordingly.
Linux Trainer Faculty at CMS Info systems (P) Ltd. (2012-06 – 2012-10)
Functioned as Linux faculty for Global certification training on REDHAT Certification.
Jr. Analyst at WNS Global Services Ltd. (2012-01 – 2012-05)
Functioned as Jr. Analyst worked on the database in greed.
Jr. Analyst at Datamatics Global Services Ltd. (2010-11 – 2011-11)
Functioned as Junior Analyst worked on database in greed using XML, HTML
