Linux System Engineer (REF4344X)

We are seeking a skilled and motivated Linux Site Reliability Engineer (SRE) to join our team. The ideal candidate will have a strong background in Linux system administration, automation, and cloud infrastructure, with a passion for building reliable and scalable systems. You will collaborate with development and operations teams to ensure our services are highly available, performant, and fault-tolerant.

Job description

• Onboarding of New Customers: Ensure smooth deployment and operational readiness, document processes and provide initial support during the transition.
• System Administration: Manage, monitor, and optimize Linux servers in production and development environments. Identify and resolve bottlenecks in application and system performance.
• Automation: Develop and maintain infrastructure automation using tools like Ansible, Terraform, or similar. Creation and Maintenance of Hardening and Washing Script (Ansible).
• Performance Optimization: Diagnose and resolve performance bottlenecks at the OS, application, and network levels. Analyze system demands and plan for scaling.
• Incident Management: Lead efforts to quickly resolve production incidents, conduct post-mortems, and implement solutions to prevent future occurrences.
• Scalability: Work on infrastructure scalability and reliability for high-traffic services.
• Collaboration: Partner with development teams to create CI/CD pipelines and integrate reliability practices into the development lifecycle.
  Coordinate changes with Operation Teams.
• Security: Ensure system security through best practices in access control, patch management, and system hardening.

• Extensive experience with Linux distributions like RHEL, CentOS, or Ubuntu.
• Shell scripting (Bash, Zsh)
• System configuration and tuning
• Package management (apt, yum, rpm)
• User and group management
• File system management
• Network configuration (TCP/IP, DNS, firewall)
• Security best practices (e.g. hardening systems, user permissions)
• Programming languages (Python, Go, Ruby)
• Version control (Git)
• CI/CD pipelines (Jenkins, GitLab Ci/CD)
• Cloud platforms (AWS, GCP, Azure)
• Containerization management tools (Ansible, Puppet, Chef)
• Monitoring and alerting tools (Prometheus, Grafana, Nagios)
• Experience with automation frameworks and tools
• Knowledge in automated installation of different Linux distributions (Kickstart, Preseed, Cloud-init)
• Knowledge of DevOps principles and practices
• Ability to write scripts and tools to automate tasks

Nice to have/preferred skills and experience (not required)Exposure to high-availability architectures and disaster recovery strategies.

• Security
  • Penetration testing
  • Vulnerability scanning
  • Security incident response
• Networking
  • Load balancing
  • VPNs
  • Network protocols (TCP/IP, HTTP, HTTPS)
• Database administration (MySQL, PostgreSQL)
• Big Data (Hadoop, Spark, Kafka)
• German language knowledge is an advantage.

* Please be informed that our remote working possibility is only available within Hungary due to European taxation regulation.