Senior Linux System Engineer

We are seeking a highly skilled Senior / Lead Linux System Engineer to join our Infrastructure Team. The ideal candidate will be responsible for designing, maintaining, and optimizing Linux-based systems and services, ensuring high availability and performance across our mission-critical environments. This role also involves mentoring junior engineers, improving internal processes, and contributing to the secure architecture of hosted platforms.Responsibilities:Develop and maintain operational procedures for managing Linux environments.Perform system performance tuning, monitoring, and incident resolution in production.Lead efforts in troubleshooting and root cause analysis to prevent recurrence.Update and maintain technical documentation and internal knowledge bases.Mentor junior system engineers and provide technical leadership on infrastructure projects.Administer and tune Linux-based web servers (NGINX, Apache, PHP-FPM).Manage and maintain DNS services (BIND, PowerDNS).Conduct safety tests, stress/load tests, and collaborate with the service desk to resolve escalated issues.Provide on-call support for urgent infrastructure issues affecting uptime or service quality.Recommend and implement automated solutions to improve system operations.Ensure secure configuration and industry best practices are applied across all environments.Requirements:Bachelor's degree in Computer Science, Communications Engineering, or a related technical field.3–5 years of hands-on experience with Linux platforms (RedHat, CentOS, Ubuntu).Strong experience with web server administration: NGINX, Apache, PHP-FPM.DNS server management: BIND and PowerDNS.Solid experience in MySQL administration.Experience with MySQL Replication, Clustering, and Performance Tuning.Familiarity with caching layers: Varnish, Memcached, Redis.Experience managing cPanel hosting environments.Exposure to open-source CMS platforms: WordPress, Drupal, Moodle, Magento.Working knowledge of Microsoft Azure or other public cloud platforms.Familiarity with shell scripting or automation tools (e.g., Bash, Ansible).