Technical Support Engineer / Linux Systems Administrator (L2/L3) at TechBiz Global GmbH

TechBiz Global GmbH; Çankaya; Hybrid; TRY 240,000 - 420,000; Full time

Job summary

TechBiz Global GmbH in Ankara is seeking a Technical Support Engineer / Linux Systems Administrator (L2/L3) for an on-site, full-time role. You will manage GNU/Linux systems, virtualization, and hosting environments to ensure reliable service.

Responsibilities include deploying and supporting cPanel/WHM, Plesk, Apache/Nginx, and databases, with emphasis on security, backups, and performance. Fluency in English is advantageous for client communication.

Qualifications

• Multiple years of hands-on Linux system administration experience.
• Strong knowledge of web hosting stacks and control panels.
• Experience with cPanel/WHM and Plesk.
• Experience with Docker, KVM, OpenVZ.
• Familiar with Apache/Nginx/LiteSpeed and databases.
• Knowledge of mail servers (Exim, Dovecot) and DNS.
• Scripting in Bash or Python; Ansible is a plus.

Responsibilities

• Administer and maintain GNU/Linux systems and virtualized/containerized environments.
• Deploy, manage, and troubleshoot hosting control panels (cPanel/WHM, Plesk).
• Troubleshoot and optimize web applications (WordPress, Laravel); PHP, Node.js, Python stacks.

Skills

Linux system administration

Web hosting support

Cross-platform support

Escalated support management

Networking fundamentals

Scripting (bash, python)

Tools

Docker

KVM

OpenVZ

cPanel/WHM

Plesk

Apache

Nginx

LiteSpeed

MySQL/MariaDB

Redis

PostgreSQL

Exim

Dovecot

Ansible

WHMCS

CloudLinux

Windows IIS/MSSQL

Job description

Technical Support Engineer / Linux Systems Administrator (L2/L3) at TechBiz Global GmbH in Ankara, T06, TR. This Full time on site position offers great opportunities for career growth. At TechBiz Global, we are providing recruitment service to our TOP clients from our portfolio. We are currently looking for a dedicated Technical Support Engineer / Linux Systems Administrator to join one of our clients' teams. If you're looking for an exciting opportunity to grow in an innovative environment, this could be the perfect fit for you.

Key Responsibilities

• Infrastructure Collaboration: Work within the technical team to administer and maintain GNU/Linux operating systems and virtualized/containerized environments (OpenVZ, KVM, Docker, etc).
• Web Hosting Operations: Participate in the deployment, management, and troubleshooting of industry-standard control panels (like 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, etc.). Assist clients and resolve complex issues related to PHP, with knowledge of Node.js and Python stacks considered a strong plus.
• Network & Security Operations: Help configure and maintain network protocols, firewalls, and WAFs (ModSecurity, Imunify360). Work with the team to identify, respond to, and mitigate security incidents (malware, phishing, DoS, etc.).
• Mail Server Administration: Troubleshoot mail flow and deliverability issues, you are already familiar with Exim, Dovecot, SPF, DKIM, DMARC, and the use of external mail relays.
• Performance & DevOps: Contribute to routine service monitoring and execute performance tuning across Apache, Nginx, LiteSpeed, and database engines (mainly MySQL/MariaDB, and rarely 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 in 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 cases.
• Hosting Stacks: Deep understanding of the cPanel/WHM ecosystem, CloudLinux (LVE, CageFS, Selectors), PHP configuration, and typical shared hosting constraints and workarounds. In addition to proven expertise configuring, managing, and troubleshooting HTTP web servers (Apache, Nginx, LiteSpeed, etc.).
• Web Technologies: Strong grasp of web server mechanics, relational/NoSQL databases, and the ability to debug complex web apps 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 with peers to provide custom technical solutions for clients.
• Nice-to-Have Automation & Scripting: Proficiency in writing Bash scripts, Python utilities, and utilizing Ansible playbooks to help the team automate routine deployments and maintenance tasks.
• 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 is highly advantageous for internal documentation and diverse client communication.