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Senior Systems Administration jobs in United States
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AT&T · 1 day ago

Senior Systems Administration

AT&T is a leading telecommunications company that values innovation and connectivity. The Senior Systems Administration role focuses on the 24x7 operations, administration, and maintenance of server infrastructure in a Linux-based cloud environment, ensuring seamless deployment of software updates and technical solutions.
Telecom & CommunicationsEnterprise SoftwareAppsCollaborationCommunications InfrastructureMobileService IndustryTelecommunicationsWireless
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Responsibilities

Performs work focusing on software, maintenance, and operations of systems used by AT&T or its clients to conduct business
Performs feasibility assessments, creates requirements, manages projects, and integrates and tests technical solutions for software
Required Experience:
3-5 years’ related experience
24x7x365 operations and can include night and weekend shifts
Required Qualifications:
3-5 years of working experience on Production Environment
Broad-spectrum skill set across Linux, KVM, OpenStack, Kubernetes, Containers, Cloud Infrastructure platforms and monitoring of the server Infrastructure
Excellent trouble-shooting and analytical skills in Systems Administration of Linux, Cloud, OpenStack and Kubernetes environment
Well versed and worked on operations and maintenance of OpenStack modules like Keystone, Nova, Neutron, Swift, Cinder, Heat, Glance, Horizon, and Fuel
Well versed with concepts like High Availability, DRS, Fault Tolerance, Scalability, Reliability, shared resources etc
Creating, reviewing, approving, and implementing changes in NC server environment
Restoration of applications/services in NC infrastructure from hardware/ OpenStack/ OS perspective in outage / service degradation scenarios
Python & shell scripting
Deployment of NC Server infrastructure (Linux, OpenStack & Kubernetes)
Knowledge and Understanding of CI/CD Pipeline in Jenkins, GitHub
Coordination with OS vendors, development teams, production support teams for root cause analysis, configuration changes etc
Coordination with hardware vendors (Dell, HP) for faulty Hardware replacement
High level of customer focus, to provide effortless customer experience. Should display a positive attitude working with various peers/ customers / clients/ vendors etc
Work in 24x7 rotational shift operations
Strong analytical/logical/problem solving skills
Work across diverse teams across regions/cultures
Certification in Systems Administration of Linux, Open Stack and Kubernetes is preferable
The candidate should have high level of coordination and communication skills (verbal and written)
Required Technical Skills:
5 years’ experience in Linux System Administration
1-3 years’ experience in Kubernetes
1-3 years’ experience in Jenkins Pipeline Executing and Merging (Cert Rotations, OS and Code Upgrades, Firmware upgrades)
1-3 years’ experience in GitHub Repository Management
5 years’ experience in Dell and HP x 86 based Hardware Break/fix
Desired Technical Skills:
1-3 years’ experience in CI/CD Code Upgrades, Firmware upgrades)
1-3 years’ experience in Nagios
1-3 years’ experience in Prometheus
1-3 years’ experience in Grafana
1-3 years’ experience in Kibana
1-3 years’ experience in API
1-3 years’ experience in Ceph
1-3 years’ experience in OpenStack
1-3 years’ experience in Ansible
1-3 years’ experience in TCP/IP Networking
1-3 years’ experience in Calico
1-3 years’ experience in SSL/TLS Certificates

Qualification

Linux System AdministrationKubernetesOpenStackPythonCloud InfrastructureCI/CD PipelineTroubleshooting SkillsShell ScriptingMariaDBMonitoring ToolsHigh AvailabilityAnalytical SkillsCoordination SkillsCommunication SkillsCustomer Focus

Required

3-5 years' related experience
24x7x365 operations and can include night and weekend shifts
3-5 years of working experience on Production Environment
Broad-spectrum skill set across Linux, KVM, OpenStack, Kubernetes, Containers, Cloud Infrastructure platforms and monitoring of the server Infrastructure
Excellent trouble-shooting and analytical skills in Systems Administration of Linux, Cloud, OpenStack and Kubernetes environment
Well versed and worked on operations and maintenance of OpenStack modules like Keystone, Nova, Neutron, Swift, Cinder, Heat, Glance, Horizon, and Fuel
Well versed with concepts like High Availability, DRS, Fault Tolerance, Scalability, Reliability, shared resources etc
Creating, reviewing, approving, and implementing changes in NC server environment
Restoration of applications/services in NC infrastructure from hardware/ OpenStack/ OS perspective in outage / service degradation scenarios
Python & shell scripting
Deployment of NC Server infrastructure (Linux, OpenStack & Kubernetes)
Knowledge and Understanding of CI/CD Pipeline in Jenkins, GitHub
Coordination with OS vendors, development teams, production support teams for root cause analysis, configuration changes etc
Coordination with hardware vendors (Dell, HP) for faulty Hardware replacement
High level of customer focus, to provide effortless customer experience. Should display a positive attitude working with various peers/ customers / clients/ vendors etc
Work in 24x7 rotational shift operations
Strong analytical/logical/problem solving skills
Work across diverse teams across regions/cultures
5 years' experience in Linux System Administration
1-3 years' experience in Kubernetes
1-3 years' experience in Jenkins Pipeline Executing and Merging (Cert Rotations, OS and Code Upgrades, Firmware upgrades)
1-3 years' experience in GitHub Repository Management
5 years' experience in Dell and HP x 86 based Hardware Break/fix

Preferred

Certification in Systems Administration of Linux, Open Stack and Kubernetes is preferable
1-3 years' experience in CI/CD Code Upgrades, Firmware upgrades)
1-3 years' experience in Nagios
1-3 years' experience in Prometheus
1-3 years' experience in Grafana
1-3 years' experience in Kibana
1-3 years' experience in API
1-3 years' experience in Ceph
1-3 years' experience in OpenStack
1-3 years' experience in Ansible
1-3 years' experience in TCP/IP Networking
1-3 years' experience in Calico
1-3 years' experience in SSL/TLS Certificates
Bachelors of Science in Computer Science, Electronics, Engineering or Communications preferred

Benefits

Medical/Dental/Vision coverage
401(k) plan
Tuition reimbursement program
Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)
Paid Parental Leave
Paid Caregiver Leave
Additional sick leave beyond what state and local law require may be available but is unprotected
Adoption Reimbursement
Disability Benefits (short term and long term)
Life and Accidental Death Insurance
Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
Employee Assistance Programs (EAP)
Extensive employee wellness programs
Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone

Company

AT&T is a telecommunications company that provides wireless communications, internet and digital television services.

Funding

Current Stage
Public Company
Total Funding
$5.04B
Key Investors
National Telecommunications and Information Administration
2025-09-19Post Ipo Debt· $5B
2024-02-12Grant· $42.3M
2023-01-19Grant· $2.2M

Leadership Team

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Jeremy Legg
Chief Technology Officer
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Pascal Desroches
Senior Executive Vice President and Chief Financial Officer
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Company data provided by crunchbase