Linux SME - 5 Days WFO - Pune/Noida

Job Description - Linux Admin

Experience

Linux Administrator with 6+ years of experience in deployment and administration of RHEL/SUSE/Ubuntu platforms. Overall Experience should be more than 10 years.

Location

Noida

Education

BE/B.Tech (RHEL Certification preferred)

Job Summary

Airtel Cloud solutions enables enterprises to accelerate and optimize their digital transformation by bringing all cloud options at one place. With an all-inclusive portfolio comprising connectivity, data centre, Edge locations and security, Airtel Cloud is fully equipped to be an enterprise's one-stop partner in every step of their multi-cloud strategy. As a Linux Admin, you will be supporting Airtel’s private cloud customers across India. You are expected to have good experience with Linux platforms along with networking. We expect you to be agile and learn new skills constantly. You will be expected to participate in all aspects of the Deployment life-cycle which includes estimating, technical design, implementation, documentation, testing, deployment and support of the Linux platform for our clients.

Having a strong background in Linux administration, virtualization, networking, and security will be required to successfully fulfill this role.

Additionally, understanding application development lifecycles as well as practical experience in working with continuous integration and continuous deployment tools as part of the container lifecycle will be useful.

Responsibilities

• Troubleshoot L3 level issues escalated by L1/L2 team
• Upgrade of Linux OS from 7.x to 8.x /9.x
• Handle Ubuntu 20.x & 22.x
• Troubleshooting of upgrade issues and roll back if required
• Manage patching of servers using tools
• Support upgrade planning and develop upgrade SPO’s for L1 team
• Act as escalation point for L1 team and help them to fix issues
• Infrastructure automation via Ansible to make deployment quick and easy.
• Develop new tools or utilities via Linux tools like SED, AWK, etc, which will help in administration of the cluster
• Work on setting up VMs and other services
• Documentation of the architecture and related components.
• Setup disaster recovery between two sites.
• Assist in change management of platform for new versions of Hotfixes, SysAdmin tasks, etc.
• Cluster capacity management and provisioning through automation of underlying hosts
• Works with experienced team members to conduct root cause analysis of issues, review new and existing code and/or perform unit testing.
• Authors/edits system documentation/playbook(s)
• May serve as a mentor on procedural matters to less experienced internal and third-party team members.

Skills/Expertise

• Excellent leadership and customer service skills.
• Strong teamwork skills and attention to detail.
• Bachelor’s degree (or above) in Computer Science or related fields.
• Excellent written and verbal communication skills

Technical Skills

• Experience with handling L3 level support large environments containing more than 1000 servers
• Sound knowledge of RHEL 7/8/9 & Oracle Linux.
• Advanced knowledge of RHEL clustering configuration.
• Knowledge of Nutanix for deployment of Linux VMs.
• Sound knowledge of Security aspects from Linux OS perspective to deliver/implement security policies as per organization guidelines.
• Able to handle most of basic to advanced calls in User, group management, system start-up, service modification, crontab entries, ACL modifications, file system management, root backups.
• Experience in Server Management, Backup, with the help of the tool provided. Any proactive monitoring tools i.e., open view, Tivoli, Big-brother, Data Protector Etc. will be added Advantage.
• Should have used any backup management software i.e., Net backup, TSM, VERITAS, Omnibackup etc.
• Good working knowledge with iptables, IPv6 and LVM
• Good command over Linux networking commands e.g. ip, ifconfig, brctl, etc.
• Working knowledge of automation tools like Ansible (minimum 1 year)
• Good knowledge of tools like Docker, Jenkins, etc (minimum 1 year)
• Good knowledge of editors like vi, sed, awk
• Good knowledge of python and shell scripting (minimum 1 year)
• Nice to have knowledge of Kubernetes.
• DevOps experience with large enterprises is a big plus
• Sound knowledge of building and deploying DNS/SMTP/LDAP Servers.
• Good handle on repository management and Linux system patching using tools like Satellite or SMART
• Sound knowledge of Security aspects from Linux OS perspective to deliver/implement security policies as per organization guidelines.
• Able to handle most of basic to advanced calls in User, group management, system start-up, service modification, crontab entries, ACL modifications, file system management, root backups.
• Have networking experience and understanding of network protocols, DNS, VPN and Load Balancing.
• Strong understanding of public and private Cloud technologies like AWS/GCP/Azure/VMware/Red Hat/Nutanix/Oracle PCA will be a plus.

```