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We are looking for a highly skilled Linux Systems Administrator / SRE Engineer to join our Infrastructure & Platform Services (ISP) team. The role focuses on managing large-scale Linux environments, implementing automation, improving observability, and ensuring the reliability of critical infrastructure. Key Responsibilities: - Maintain, secure, and operate a large-scale Unix/Linux server environment (1,300+ servers). - Participate in on-call rotations to proactively address issues and prevent outages. - Support production environments through automation of patching, upgrades, and performance improvements. - Develop monitoring and observability solutions using Zabbix, Prometheus, Grafana, and ELK stack. - Manage Linux virtual machines, containers, and associated applications. - Perform lifecycle management including patching, upgrades, updates, and troubleshooting. - Process daily service tickets (requests, incidents, and change requests). - Manage internal and external DNS updates and configurations. - Collaborate with third-party vendors for troubleshooting and issue resolution. - Contribute to system improvements, automation initiatives, and operational efficiency. - Support and maintain CI/CD pipeline integrations. - Implement Infrastructure as Code (IaC) using Ansible, Terraform, and scripting tools. Qualifications & Skills: - Strong experience in Linux system administration (Debian, Ubuntu, RHEL). - Proficiency in scripting languages such as Bash, Python, or Go. - Hands-on experience with automation tools like Ansible and Terraform. - Good understanding of cloud platforms and virtualized environments (OpenStack, VM-based platforms). - Experience with monitoring and observability tools such as Zabbix, Prometheus, Grafana, and ELK stack. - Exposure to SQL/NoSQL databases such as PostgreSQL and Couchbase. - Experience with CI/CD pipelines and version control tools like Git. - Working knowledge of web servers such as Nginx or Apache. - Robust problem-solving and troubleshooting skills. - Ability to work collaboratively across teams and contribute to process improvements. - Strong written and verbal communication skills. - Ability to remain calm and composed during incident response situations. .