Technical Support Engineer / Linux Systems Administrator (L2/L3)

TechBiz Global provides recruitment services to top clients. We are seeking a dedicated Technical Support Engineer / Linux Systems Administrator to join one of our client's innovative teams. This is an exciting opportunity for growth in a dynamic environment.

Key Responsibilities

• Infrastructure Collaboration: Administer and maintain GNU/Linux operating systems and virtualized/containerized environments (OpenVZ, KVM, Docker).
• Web Hosting Operations: Deploy, manage, and troubleshoot industry-standard control panels (e.g., cPanel/WHM, Plesk) within shared hosting environments.
• Application & Web Stack Support: Troubleshoot and optimize web applications built on common web technologies, frameworks, and CMS platforms (WordPress, Laravel). Resolve complex PHP issues; knowledge of Node.js and Python stacks is a strong plus.
• Network & Security Operations: Configure and maintain network protocols, firewalls, and WAFs (ModSecurity, Imunify360). Identify, respond to, and mitigate security incidents (malware, phishing, DoS).
• Mail Server Administration: Troubleshoot mail flow and deliverability issues, with familiarity in Exim, Dovecot, SPF, DKIM, DMARC, and external mail relays.
• Performance & DevOps: Contribute to service monitoring and execute performance tuning across Apache, Nginx, LiteSpeed, and database engines (primarily MySQL/MariaDB, with occasional PostgreSQL and Redis).
• Reliability & Migrations: Support infrastructure projects, including migration of hosting accounts, VMs, and mail systems. Assist in testing and implementing disaster recovery, backups, failovers, and caching/CDN strategies.

Required Qualifications

• Experience: Several years of hands-on experience in the web hosting industry, encompassing both technical support and system administration.
• OS Mastery: Advanced proficiency in Linux system administration and troubleshooting. Familiarity with Windows Server environments (including IIS, MSSQL) for cross-platform support.
• Hosting Stacks: Deep understanding of the cPanel/WHM ecosystem, CloudLinux (LVE, CageFS, Selectors), PHP configuration, and shared hosting constraints/workarounds. Proven expertise in configuring, managing, and troubleshooting HTTP web servers (Apache, Nginx, LiteSpeed).
• Web Technologies: Strong grasp of web server mechanics, relational/NoSQL databases, and the ability to debug complex web applications at the server level.
• Networking Fundamentals: Solid understanding of TCP/IP, DNS, and network protocols.
• Communication: Strong ability to manage escalated support tickets and collaborate to provide custom technical solutions.

Nice-to-Have

• Automation & Scripting: Proficiency in Bash scripts, Python utilities, and Ansible playbooks for automating deployments and maintenance.
• Billing & Integration: Experience with WHMCS backend architecture and custom module integrations.
• Hardware & Architecture: Familiarity with high-density enterprise server architectures and large-scale account consolidation workflows.
• Multilingual Support: Professional fluency in English for internal documentation and diverse client communication.