Job description

Role: Sr. Linux Admin (L3)

Location: Dallas, TX (INITIAL REMOTE)

FULL-TIME (W2)

Job Description:

Essential Duties

The Sr. Linux Administrator is an experienced IT professional responsible for system deployment, configuration management, documentation, patch management, system availability, disaster recovery, hardware/software redundancy, and security configuration.

• Works with leadership to set priorities, goals, and tasks
• Works independently on tasks with minimal supervision
• Provides assistance to junior team members
• Design, implement, and manage Linux systems
• Participate weekly in change and patch management meetings and windows
• Manage operating system security in accordance with industry best practices and company policy
• Manage patches, system maintenance, and maintain patching schedule with stakeholders
• Plan hardware capacity based on the scope, use, and projected growth
• Collaborate with other team members and management to deliver customized and scalable solutions
• Create, maintain, and follow technical documentation detailing system configurations, procedures, and standardsParticipate in team meetings and other meetings as required
• Develop and implement tools, processes, and automation where possible to increase efficiency, reliability, scalability, availability, and security
• Proactively analyze and diagnose existing system performance to improve availability and scalability or to respond to outages or degraded performance
• Act as a subject-matter expert on OS/infrastructure
• Plan, implement, and complete projects, meeting team and organizational goals
• Familiarity with security vulnerability response and working with multiple teams and applications to remediate
• Perform other duties as assigned

Knowledge, Skills, and Abilities

• A strong desire to learn, teach, document, and practice new skills
• Expert at solving complex problems and troubleshooting issues
• Highly self-motivated and able to work independently as well as in a team environment
• Strong interpersonal communication skills including listening, speaking, and writing with the ability to work well in a diverse, team-focused environment with other associates
• Excellent decision-making, problem-solving, and collaboration skills
• Strong organization skills, with emphasis on detail and follow-up
• Ability to lead and work in projects autonomously
• Capability of effective planning and priority setting
• Proven record of dealing with challenges and meeting conflicting demands
• Ability to work well under pressure in production support situations with limited supervision

Minimum Qualifications

• Minimum of 10 years’ experience in IT operations to including:
• Last 7 years in a dedicated Linux Admin role supporting enterprise environments
• Solid understanding of the Linux OS (RHEL 8+/Rocky Linux 8+/Ubuntu 20.04+) and its components (kernel, system, libraries, job scheduling, and package management)
• Intermediate BASH or Python scripting skills, including understanding, modifying, and creating scripts
• Detailed understanding of fundamental network protocols such as routing, TCP/IP, DNS, SNMP, SSL/TLS, Firewalls, and HTTP
• Solid understanding of LVM, filesystem types, and partitioning
• Extensive understanding of Intel Servers (Dell, HP, Lenovo/IBM, or SuperMicro) including remote access, troubleshooting, booting, firmware, and configuration
• Understanding of security best practices such as CIS, SELinux, Firewalls, PAM, etc.
• Extensive experience with OS patching and patching tools (RPM, YUM, repos)
• Hands-on experience with management tools such as SaltStack, Ansible, etc. including writing states, playbooks, or recipes.
• Experience with PXE booting Linux-based OS installs (ex. kickstart, Cobbler, FAI, etc.)
• Ability and willingness to work after-hours on occasion (nights, evenings, weekends, on-call rotation, etc.)
• Experience with managing servers at scale (1000+)
• Experience with VMware vCenter and general understanding of virtualization

Preferred Qualifications

• Bachelor's degree in computer science or computer engineering or equivalent combination of experience and education
• Multi-generation Dell hardware experience (12th-15th)
• Understanding of version controls systems (Git, BitBucket, etc.)
• Professional experience with container technologies such as Kubernetes, OpenShift, PCF/Tanzu, etc.
• Professional experience with public clouds (AWS, GCP, Azure)
• Experience with modern tools such as Jira and Confluence
• Experience participating in IT compliance audits (PCI, SOX, FedRAMP, etc.)
• Hands on experience with SAN storage (Fibre Channel, Multipath, PowerPath, etc.)
• Familiarity with MySQL, MariaDB, or PostgreSQL
• One or more advanced certifications (RHCSA, RHCE, AWS Cloud Practitioner)

Good-to-Have

• Basic knowledge in Service Management tools ( ServiceNow, Heat, Jira etc..)
• Experience in client/Server and enterprise environments
• ITIL Certified or a Strong working knowledge of ITIL Incident, Problem and change Management disciplines.

Job Type: Full-time

Pay: $100,000.00 - $110,000.00 per year

Benefits:

• 401(k)
• Health insurance

Schedule:

• 8 hour shift

Ability to commute/relocate:

• Dallas, TX: Reliably commute or planning to relocate before starting work (Required)

Experience:

• Red Hat Linux: 8 years (Preferred)
• Linux: 8 years (Preferred)
• AWS Cloud Administration.: 5 years (Preferred)
• Server Administration: 5 years (Preferred)
• Ubuntu: 5 years (Preferred)

Work Location: In person

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