Linux DevOps Engineer

About the position

The Linux DevOps Engineer role is focused on ensuring the daily operational availability of Linux and Unix platforms to support business operations, both on-premises and in the cloud, primarily Azure. This position involves administration, performance monitoring, and security management of Linux/Unix systems, while collaborating with various IT operations teams to meet service level agreements and maintain system resilience.

Responsibilities

• Ensure effective daily availability of Linux & Unix platforms for business operations.
• Administer and monitor performance of Linux/Unix systems across various platforms.
• Work closely with IT Operations Teams including Service Desk, Infrastructure, EDI, Web, SAP, and IT Management.
• Provision Linux systems and services as required by the business with associated SLAs.
• Configure and patch systems to maintain standards.
• Provide print services to support warehouse operations.
• Implement backup and recovery solutions and regularly test them in line with audit requirements.
• Ensure security measures are in place to protect servers from compromise and ransomware attacks.
• Monitor and alert on server hardware, software, and services.
• Upgrade obsolete operating systems and regularly patch Linux/Unix systems.
• Utilize monitoring portals and alert mechanisms for Linux systems.
• Escalate critical and high-security alerts to IT teams and senior management.
• Administer security vulnerabilities and ensure timely resolution.
• Create and coordinate incidents, ensuring accurate record-keeping.
• Produce weekly KPIs and contribute to monthly board reports.
• Participate in enhancements and optimization projects in line with the Linux Server Roadmap.
• Conduct annual internal and external penetration testing of Linux systems and remediation.
• Manage third-party suppliers and Linux-related tickets raised on the IT Service Desk.

Requirements

• At least 10 years' experience in IT Operations/DevOps.
• Minimum 5 years of Linux Administration experience using command line.
• Strong knowledge of Linux/Unix variants based on RedHat, such as Oracle Linux 9x and CentOS.
• Experience with Linux Virtualization (KVM & Containers) and Microsoft Azure Hosting.
• Operational knowledge of databases like MySQL, Influx, and Loki, including replication methodologies.
• Configuration experience with services such as DNS, Apache, and NTP using text configuration files.
• Expert knowledge of encryption methodologies including SSL, TLS, CSR, P12/PFX, and Cypher Suites.
• Expert level technical knowledge of Linux subsystems including Networking, DNS, NTP, HTTP/HTTPS, SSH, SFTP, FTP, and Web Servers (Apache).
• High level of technical knowledge of email subsystems such as Exim, Postfix, and sendmail.
• Expertise in Linux scripting/programming languages including bsh, ksh, awk, perl, PHP, C, and Python.
• Solid technical and analytical skills with the ability to interpret and present data clearly.
• Good security skills for threat detection and protection solutions.

Nice-to-haves

• Understanding of XML, templates, and structures.
• Knowledge of printing solutions down to printer language level for PCL and PDF.
• Working knowledge of Unix variants such as IBM AIX, PowerVM, and HMC.

Benefits

• Hybrid working model with as little as 1 day on-site required.
• Support with securing visas and work permits for contractors.
• Market-leading benefits packages and accommodation support for contractors.