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L3 Senior Linux System Administrator/Assistant Manager - CentOS/Red Hat

LYRA NETWORK PRIVATE LIMITED
Mumbai
10 - 15 Years
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3.8white-divider42+ Reviews

Posted on: 08/01/2026

Job Description

We are looking for Senior Linux Administrator with hands-on experience in delivery solution - Design, Team Management, Project Management, Deployment, Configuration and management of Data Centre IT Infrastructure hardware and software's.


Job Description :

- Server installation, Administration and performance optimization with RedHat distribution such as CentOS version 8/9/10/11.


- Implemented/setup of Apache, Nginx, Tomcat, HAProxy, Keepalived, Squid, Promethus/Grafana(monitoring)

- Provides technical assistance and support for applications, hardware problems.


- Prepare evaluations and reports on system efficiency and utilization.


- Participating in Level 3 type of P1, P2 incident issues.


- Innovative and talented System Administrator who will be responsible for production up-time, health checkup of physical systems. Provide 24x7 support to critical production systems and team members.

- Having any automation tool experience like Ansible/Puppet/Terraform etc.



- Hands-on some of the built or manage tools like OpenShift or Kubernetes.



- Performing root cause analysis of problems. Prepare plan of action, implement changes, document all work completed and train support staff.



- Good written and verbal communication skills with ability to communicate technical issues to nontechnical and technical audiences



- Handling the vulnerability management (like VAPT) and patching of Production server.



- Able to handle multiple tasks and prioritize work under pressure, Communicate effectively while working with IT vendors ranging from hardware vendors like Dell, IBM, Cisco to software and other service providers like Microsoft, hardware partners and more.



- Facing any external auditors for ISO270001 or/and PCI-DSS audit from Information Security fixation and implementation POV.



- Experience planning, implementing and operating open-source tools and technologies.



- Experience on open-source Automation tools and technologies with YAML and YUM.



- Perform hardware and/or software upgrade and replacement services for server systems equipment



- Good knowledge and hands on experience in AWS, Linux, VPC, RHCE Load Balancer, Route53, Subnetting.



- In addition to existing skill set for this position, we are looking for "Implementation skill", "Technical project driving skill", "Project Management" skill, "Team Handling - Leadership Quality" and "Middleware"skill etc


Applications, services and protocols commonly used :

- Web servers


- Database servers

- Clusters



- Virtualization



- Open-Source tools/Cloud Services like - AWS : - (EC2, VPC, RHCE, Load Balancer for Web Application environment)



- Monitoring



- Backups and restores



- Experience with Linux/UNIX environments and scripting for Build & Release automation.


Networking concepts and devices :

- Switches & Rotuers - Like Route53



- Firewalls



- Load balancers



- IPS/IDS



- VPN



- SSL


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