AISL-186 Medium Unix Engineer

We are seeking a skilled and experienced Medium Unix Engineer to join our IT operations team. The ideal candidate will have extensive experience managing Unix-based systems, providing technical leadership, and ensuring the optimal performance, stability, and security of our infrastructure. This role involves both hands-on administration and mentoring junior team members, contributing to the design and execution of system architecture, troubleshooting, and managing critical systems in a high-availability environment.

This position also includes participating in on-call rotations and contributing to proactive and reactive IT activities to maintain a robust and resilient infrastructure.

Key Responsibilities

• System Administration: Install, configure, and maintain Unix/Linux servers and related software. Ensure optimal system performance and troubleshoot issues related to security, performance, and application integration.
• Infrastructure Management: Manage large-scale Unix environments, automating tasks using shell scripting, Ansible, Puppet, or similar tools.
• Performance Tuning: Monitor system performance, analyze logs, and use various monitoring tools to ensure uptime, speed, and availability of systems.
• Security Management: Implement and enforce security best practices, perform system audits, and ensure compliance with internal and external security policies. Handle patch management and vulnerability remediation.
• Support & Troubleshooting: Respond to critical issues or outages, using advanced troubleshooting skills to restore services quickly. Manage priorities in a fast-paced environment while ensuring SLAs are consistently met.
• Automation & Scripting: Develop and maintain scripts to automate regular tasks and system configuration changes, improving operational efficiency.
• Documentation: Maintain clear documentation for system configurations, procedures, and troubleshooting processes. Prepare and maintain system logs, incident reports, and support documentation.
• Collaboration & Communication: Work closely with other IT teams (networking, security, development) to support projects and initiatives. Act as a key player in cross-functional teams to deliver timely solutions. Familiarity with hardware maintenance, vendor ticket management, and escalation processes.

Technical Skills & Certifications

• Operating Systems: Extensive experience with RedHat Linux (versions 6, 7, 8, and 9).
• Automation Tools: Proficiency in Ansible for automation and RedHat Satellite for configuration management.
• Protocols and Services: In-depth knowledge of NTP and DNS configuration and troubleshooting.
• ITIL Framework: Understanding and practical experience with ITIL processes (incident, change, and problem management).
• Preferred Certifications:
  • Red Hat Certified Engineer (RHCE) or Red Hat Certified Specialist
  • ITIL Foundation Certification

Key Activities (Proactive & Reactive)

Proactive Activities:

• Automate routine tasks using tools like Ansible to improve efficiency and reduce human error.
• Conduct regular system health checks, performance tuning, and capacity planning.
• Implement and maintain monitoring tools to detect potential issues before they impact operations.
• Collaborate with vendors for hardware maintenance and ensure compliance with support agreements.
• Keep systems up-to-date with patches and upgrades, ensuring security compliance.

Reactive Activities:

• Troubleshoot and resolve incidents in a timely manner, performing root cause analysis to prevent recurrence.
• Respond to on-call requests during off-hours to address critical issues.
• Manage and resolve vendor-related tickets for hardware and software issues.
• Participate in the change management process, ensuring successful implementation with minimal downtime.
• Address service requests and ensure timely resolution while maintaining high levels of customer satisfaction.

Requirements

• Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent work experience).
• 10+ years of experience in Unix/Linux system administration, preferably with a focus on high-availability systems.
• Expertise in Unix-based operating systems (AIX, HP-UX, Solaris, or Linux).
• Proficiency in shell scripting (Bash, KornShell, etc.) and automation tools (Ansible, Puppet, Chef, etc.).
• Strong understanding of system security practices, user authentication, and file system management.
• In-depth knowledge of network protocols (TCP/IP, DNS, NFS, HTTP, etc.) and system services (SSH, NTP, SMTP).
• Experience with performance monitoring and system diagnostic tools.
• Experience with virtualization technologies (VMware, KVM, etc.) and cloud infrastructure (AWS, Azure, etc.) is a plus.
• Availability to participate in on-call rotations.
• Only candidates with full EU citizenship will be considered.

Why Join Us?

• Work with cutting-edge technology in a high-availability environment.
• Be part of a dynamic, innovative, and supportive IT team.

How to Apply

If you meet the above qualifications and are excited about this opportunity, we’d love to hear from you! Apply now and become a key part of our IT operations team.