Senior Linux / SRE Infrastructure Engineer

Job Description: 

Platform Engineering & Operations

·        Lead the administration, monitoring, and performance tuning of Oracle Enterprise Linux (OEL) environments in a large-scale enterprise ecosystem.

·        Oversee the design, build, and lifecycle management of Linux servers, including storage, virtualization, and associated infrastructure.

·        Manage high availability (HA) configurations, clustering, and load-balanced environments to ensure minimal downtime.

·        Drive capacity planning, performance optimization, and system scalability initiatives.

Reliability & Automation (SRE Practices)

·        Define and implement SRE principles, including SLIs, SLOs, and error budgets.

·        Lead initiatives for infrastructure automation (provisioning, configuration, patching) using tools such as Ansible.

·        Build and maintain self-healing systems, reducing manual intervention and improving system resilience.

·        Develop automation for system installation, configuration, and deployment pipelines.

System Administration & Infrastructure Management

·        Install, configure, and maintain Oracle Enterprise Linux (OEL) operating systems and related software stacks.

·        Manage Logical Volume Manager (LVM) configurations, including volume groups and filesystem expansion.

·        Administer distributed file systems, NFS servers/clients, and automount configurations.

·        Maintain network services such as DNS, NTP, LDAP/Kerberos, SMTP (sendmail/postfix), and OpenSSH.

·        Troubleshoot and support network protocols (TCP/IP, HTTP, HTTPS, RPC).

Monitoring, Incident Management & Support

·        Implement and enhance monitoring, alerting, and observability frameworks for proactive issue detection.

·        Lead incident response, root cause analysis (RCA), and postmortem reviews.

·        Drive continuous improvement by identifying systemic issues and implementing preventive solutions.

·        Oversee break/fix operations, ensuring timely resolution and minimal business impact.

Security & Compliance

·        Ensure systems are secure, hardened, and compliant with enterprise security standards.

·        Manage patching, vulnerability remediation, and OS upgrades.

·        Partner with security teams to implement best practices for access control, auditing, and encryption.

·        Leadership & Collaboration

·        Provide technical leadership and mentorship to SRE and infrastructure teams.

·        Collaborate with application, DevOps, and platform teams to improve system reliability and deployment processes.

·        Define and enforce operational standards, runbooks, and best practices.

·        Drive cross-functional initiatives to enhance platform stability and efficiency.

Documentation & Governance

·        Maintain comprehensive documentation for architecture, processes, and operational procedures.

·        Ensure adherence to change management and incident governance frameworks.

·        Standardize operational workflows across environments.

·        5+ years of experience in Linux system administration in enterprise environments.

·        Strong expertise in Oracle Enterprise Linux (OEL) systems and FPP.

·        Proven experience in high availability systems, virtualization, and storage management.

·        Hands-on experience with automation and configuration management tools (Ansible preferred).

·        Proficiency in at least one scripting/programming language ( Bash, Python preferred).

·        Strong experience with infrastructure troubleshooting, performance tuning, and incident management.

·        Solid understanding of enterprise infrastructure (compute, storage, network).

·        Excellent analytical, problem-solving, and organizational skills.

Strong communication and collaboration skills in a global team environment