Key Responsibilities
Administer, configure, and maintain Linux environments including RHEL, CentOS, Ubuntu, and Debian in production environments.
Perform OS installation, patching, kernel upgrades, package management, and ensure system availability, performance, and reliability.
Manage user accounts, permissions, authentication (LDAP/Active Directory/PAM), system services, storage (LVM, NFS/CIFS), and backup/restore operations.
Configure and troubleshoot networking components including TCP/IP, DNS, DHCP, VLANs, bonding, routing, firewall (iptables/firewalld), and connectivity issues.
Monitor infrastructure using tools such as Nagios, Zabbix, Prometheus, Grafana, and proactively resolve performance, capacity, and availability issues.
Troubleshoot complex Linux system, application, storage, and network issues using logs, performance analysis, and advanced diagnostic tools to perform root cause analysis (RCA).
Implement and maintain Linux security hardening, vulnerability remediation, SELinux/AppArmor policies, SSL/TLS certificates, and compliance with security standards.




Automate operational tasks using Shell (Bash), Ansible, and Infrastructure-as-Code tools such as Terraform or Puppet to improve operational efficiency.
Design, implement, and support high-availability, disaster recovery, virtualization, containerized (Docker/Kubernetes), and hybrid cloud (AWS/Azure/GCP) Linux infrastructure.
Optimize system performance through capacity planning, kernel tuning, resource optimization, and infrastructure performance engineering.
Develop and maintain technical documentation, SOPs, runbooks, architecture documents, and knowledge base articles.
Provide technical leadership by handling L2/L3 escalations, mentoring junior engineers, participating in on-call support, and collaborating with cross-functional teams, vendors, and stakeholders to deliver reliable infrastructure solutions.

Required Qualifications
3–8 years of hands-on Linux administration in a production environme

📌 Linux System Administrator (Mumbai)
🏢 ESDS Software Solution
📍 Mumbai