Lead Linux Systems Engineer

Location: Chandler, Arizona
Job type: Contract
Work hours: 8am to 5pm
Education: Bachelor’s degree

Responsibilities

• Lead the administration, monitoring, and performance tuning of Oracle Enterprise Linux (OEL) environments in a large-scale enterprise ecosystem.
• Oversee the design, build, and lifecycle management of Linux servers, including storage, virtualization, and associated infrastructure.
• Manage high availability (HA) configurations, clustering, and load-balanced environments to ensure minimal downtime.
• Drive capacity planning, performance optimization, and system scalability initiatives.
• Define and implement SRE principles, including SLIs, SLOs, and error budgets.
• Lead initiatives for infrastructure automation (provisioning, configuration, patching) using tools such as Ansible.
• Build and maintain self-healing systems, reducing manual intervention and improving system resilience.
• Develop automation for system installation, configuration, and deployment pipelines.
• Install, configure, and maintain Oracle Enterprise Linux (OEL) operating systems and related software stacks.
• Manage Logical Volume Manager (LVM) configurations, including volume groups and filesystem expansion.
• Administer distributed file systems, NFS servers/clients, and automount configurations.
• Maintain network services such as DNS, NTP, LDAP/Kerberos, SMTP (sendmail/postfix), and OpenSSH.
• Troubleshoot and support network protocols (TCP/IP, HTTP, HTTPS, RPC).
• Implement and enhance monitoring, alerting, and observability frameworks for proactive issue detection.
• Lead incident response, root cause analysis (RCA), and postmortem reviews.
• Drive continuous improvement by identifying systemic issues and implementing preventive solutions.
• Oversee break/fix operations, ensuring timely resolution and minimal business impact.
• Ensure systems are secure, hardened, and compliant with enterprise security standards.
• Manage patching, vulnerability remediation, and OS upgrades.
• Partner with security teams to implement best practices for access control, auditing, and encryption.
• Provide technical leadership and mentorship to SRE and infrastructure teams.
• Collaborate with application, DevOps, and platform teams to improve system reliability and deployment processes.
• Define and enforce operational standards, runbooks, and best practices.
• Drive cross-functional initiatives to enhance platform stability and efficiency.
• Maintain comprehensive documentation for architecture, processes, and operational procedures.
• Ensure adherence to change management and incident governance frameworks.
• Standardize operational workflows across environments.

Requirements

• 5+ years of experience in Linux system administration in enterprise environments.
• Strong expertise in Oracle Enterprise Linux (OEL) systems and FPP.
• Proven experience in high availability systems, virtualization, and storage management.
• Hands-on experience with automation and configuration management tools (Ansible preferred).
• Proficiency in at least one scripting/programming language (Bash, Python preferred).
• Strong experience with infrastructure troubleshooting, performance tuning, and incident management.
• Solid understanding of enterprise infrastructure (compute, storage, network).
• Excellent analytical, problem-solving, and organizational skills.
• Strong communication and collaboration skills in a global team environment.

Skills

• Ansible
• Bash
• Storage management
• Deployment pipelines
• DevOps
• Distributed file systems
• DNS
• Infrastructure automation
• Configuration management tools
• Kerberos
• LDAP
• Linux servers
• Linux system administration
• Logical Volume Manager (LVM)
• Network protocols
• Network services
• NTP
• OpenSSH
• Oracle Enterprise Linux
• Performance tuning
• Performance optimization
• Postfix
• Python
• System reliability
• Scripting
• Sendmail
• SMTP
• SRE Practices
• Vulnerability remediation
• High availability
• TCP/IP
• Analytical skills
• Communication
• Organizational skills
• Leadership
• Troubleshooting
• Problem-solving
• Reliability
• Proactive
• Business impact
• Collaboration
• Access control
• System administration
• Administration
• Architecture
• Install
• Auditing
• Automation
• Budgets
• Continuous improvement
• Capacity planning
• Change management
• Enterprise security
• Encryption
• Governance
• Governance frameworks
• Incident management
• Incident response
• Infrastructure
• Infrastructure management
• Enterprise infrastructure
• Comprehensive documentation
• Lifecycle management
• Mentorship
• Operating systems
• Issue detection
• Collaboration skills
• Root cause analysis
• Security
• System scalability
• SRE principles
• Standardize
• System installation
• Deployment processes
• Technical leadership
• Operational workflows

Pay

$51.66 - 61.66 per hour