Linux Administrator - RHEL

Role & responsibilities:

Linux Administration

• Administer and maintain Red Hat Enterprise Linux (RHEL) servers in production, UAT, and DR environments.
• Perform OS installation, patching, upgrades, performance tuning, and system hardening.
• Configure and manage LVM, multipath, NFS, Samba, and storage administration.
• Monitor server performance, capacity planning, and resource utilization.
• Automate routine administrative tasks using Shell scripting, Python, or Ansible.
• Manage system logs, troubleshooting, and incident resolution.

RHSSO / RHBK (Key cloak) Administration

• Install, configure, and manage RHSSO/RHBK environments.
• Configure authentication and authorization mechanisms.
• Implement Single Sign-On (SSO), OAuth 2.0, OpenID Connect (OIDC), and SAML integrations.
• Integrate RHSSO/RHBK.
• Perform backup, recovery, clustering, and high availability setup.
• Troubleshoot authentication issues and token-related problems.
• Support migration from RHSSO to RHBK versions where applicable.

Microsoft SQL Server Administration

• Install, configure, and administer Microsoft SQL Server databases.
• Manage database availability, backups, restoration, and disaster recovery.
• Monitor SQL Server performance and optimize queries.
• Configure and maintain Always on Availability Groups and clustering.
• Perform database patching and upgrades.

Security & Compliance

• Implement server hardening in line with security best practices
• Implement certificate management, SSL/TLS configuration, and key management.

Monitoring & Automation

• Utilize monitoring tools such as Nagios, Zabbix, Prometheus, Grafana, Splunk, or ELK Stack.
• Develop automation scripts for deployment, monitoring, and maintenance activities.

Preferred candidate profile

• Experience: 7 + years managing RHSSO/RHDS/RHBK/Key cloak experience in enterprise environments along with enterprise IT infrastructure and identity system.
• Education: Bachelors degree in Computer Science, Information Technology.
• Security Knowledge: Strong understanding of ITIL, SSO, OAuth flows, Security and compliance frameworks (e.g. RBI, ISMS, HIPAA, GDPR).
• Certifications: Red Hat certifications such as RHCSA/RHCE preferred, along with Microsoft SQL Server certification are highly preferred.

Mandatory Skills

• 6–8 years of Linux Administration experience.
• Strong hands-on experience with RHEL 7/8/9.
• Experience administering RHSSO or RHBK (Key cloak).
• Good knowledge of OAuth2, OIDC, and SAML protocols.
• Experience integrating Key cloak/RHSSO with Active Directory and LDAP.
• Hands-on experience with Microsoft SQL Server Administration.
• Shell scripting for automation and troubleshooting.
• Experience with SSL/TLS certificate management.
• HA/DR Configuration and Management
• Strong troubleshooting and analytical skills.