Senior Engineer - Linux

Position Overview

This role entails owning the daily management and ongoing enhancement of enterprise Linux platforms and storage services spanning both on-premises data centers and cloud environments including Oracle Cloud Infrastructure (OCI) and Microsoft Azure. The candidate will ensure platform stability, security, and high availability while offering advanced troubleshooting and guidance to multidisciplinary teams.

Job Summary

The position requires a seasoned Senior Linux Administrator with extensive experience managing hybrid Linux infrastructures, including strong Oracle Database knowledge to collaborate closely with database teams supporting Oracle platforms on Linux.

Key Responsibilities

• Install, configure, and maintain Linux servers such as RHEL, Oracle Linux, CentOS, and AlmaLinux.
• Carry out system upgrades, patch management, and security enhancements following enterprise patching tools and change management processes.
• Monitor system performance, resolve issues promptly, and maintain high availability.
• Manage user permissions and system security controls.
• Deploy and administer Linux workloads across OCI and Azure platforms, handling services such as Compute, VCN, Block Volumes, File Storage, Load Balancer, IAM, Azure Backup, and Microsoft Entra ID.
• Design scalable and secure cloud infrastructure adhering to governance principles and optimize performance and costs for workloads.
• Handle disaster recovery, backup solutions, and business continuity using cloud-native capabilities and enterprise backup tools.
• Manage physical and virtual data center infrastructure including VMware environments, storage platforms like NetApp ONTAP, HPE 3PAR, IBM storage, and SAN fabric technologies (Brocade, Cisco MDS).
• Configure Linux storage components including multipathing, LVM, filesystems, and execute capacity management tasks.
• Ensure seamless hybrid cloud integration regarding networking, routing/DNS, identity, and operational workflows.
• Automate processes and infrastructure using Bash, Python, Ansible, and Terraform for Infrastructure as Code.
• Implement monitoring solutions, analyze logs, and ensure compliance with service level agreements.
• Maintain security standards through vulnerability management, firewall and SELinux policy administration.
• Collaborate with cross-functional teams and provide Level 2/3 technical support, documentation, and participate in incident management.

Qualifications

• Bachelor's degree in Computer Science, IT, or comparable practical experience.
• Minimum 8 years of hands-on Linux system administration experience in complex enterprise settings including production operations and on-call support.
• Proficient in RHEL/Oracle Linux system administration, networking, troubleshooting, and performance optimization.
• Expertise with OCI services (Compute, VCN, IAM, storage) and Azure services (Virtual Machines, Storage, Backup, Azure AD).
• Strong background in storage administration (SAN/NAS), multipathing, LVM, filesystems (XFS/ext4), and experience with enterprise storage vendors and SAN fabrics.
• Working knowledge of Oracle Database administration on Linux including installation, patching, filesystem layout, and listener fundamentals; familiarity with RMAN and Data Guard preferred.
• Experience managing virtualization platforms such as VMware and Hyper-V.
• Strong scripting capabilities with Bash for automation and operational tooling.
• Hands-on experience with Ansible (required) and Terraform (preferred) for automation and Infrastructure as Code.
• Experience with patch management tools such as Red Hat Satellite and Azure Update Manager.
• Solid understanding of networking concepts including TCP/IP, DNS, routing, DHCP, and firewall configuration.
• Experience with backup/restore and disaster recovery processes using tools like Azure Backup, Azure Site Recovery, Commvault, Veritas NetBackup, Cohesity, and others.

Working Conditions

• Participation in on-call rotations supporting maintenance windows and critical incidents.
• Work environment involves hybrid support across data centers and cloud; occasional after-hours work may be necessary.

Preferred Certifications

• Red Hat Certified Engineer (RHCE)
• Oracle Cloud Infrastructure Certification
• Microsoft Azure Administrator (AZ-104) or equivalent
• Kubernetes or container technology certifications (optional)

Competencies

• Strong analytical and troubleshooting skills.
• Ability to operate effectively in hybrid environments combining cloud and on-prem infrastructure.
• Excellent communication and documentation capabilities.
• Ability to perform under pressure and manage critical incidents.

Additional Desired Skills

• Experience with Kubernetes and OpenShift platforms.
• Knowledge of other database environments is an asset.
• Familiarity with monitoring tools is beneficial.

About the Employer

Malomatia is a premier IT services and solutions company headquartered in Qatar, uniting local and international expertise to offer comprehensive, innovative technology services that advance client strategic objectives. Founded in 2008, Malomatia supports Qatar’s digital transformation across government, healthcare, education, customs, and transportation sectors through cloud, cybersecurity, AI, and contact center excellence solutions. The company emphasizes values such as ownership, integrity, empathy, teamwork, transparency, agility, excellence, trust, and innovation. Joining Malomatia provides the opportunity to contribute to technology shaping the future of Qatar’s smart society.