Apply on Employer Site

AT&T · 1 day ago

Senior Systems Administration

Alpharetta, GA

Full-time

Onsite

Mid, Senior Level

$106K/yr - $159K/yr

3+ years exp

AT&T is a leading communications and technology company that connects the world. The Senior Systems Administration role involves overseeing the 24x7 operations, administration, and maintenance of server infrastructure in a Linux-based environment, focusing on cloud technologies and software deployment.

CollaborationCommunications InfrastructureMobileService IndustryTelecommunicationsWireless

No H1B

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

Responsible for 24x7 operations, administration and maintenance of server infrastructure in AT&T’s NC (Network Cloud) Linux based environment

Performs deployment of software updates on this cloud platform comprised of Linux OS, BIOS/ firmware, OpenStack, Kubernetes, Calico, Ceph, Maria DB and other software components

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

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

Qualification

LinuxKubernetesOpenStackCloud InfrastructurePythonShell scriptingCI/CD PipelineJenkinsGitHubCephCalicoTCP/IP NetworkingNagiosPrometheusGrafanaKibanaAnsibleSSL/TLS CertificatesHigh AvailabilityFault ToleranceScalabilityReliability

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