Senior Systems Administration

This is a full‑time onsite role based in the location(s) posted and is performed from the designated work location five days per week. No relocation is offered. AT&T will not hire any applicants for this position who require employer sponsorship now or in the future. Join AT&T and help shape the future of communications and technology that connect the world. We value innovators who seek to explore the unknown and challenge the status quo.

Bring your bold ideas and fearless spirit to redefine connectivity and transform how people share stories and experiences. At AT&T, you won’t just imagine the future—you’ll build it.

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.

As a Senior Systems Administration in the Network Cloud Operations organization, you will be responsible for 24x7 operations, administration and maintenance of server infrastructure in AT&T’s NC (Network Cloud) Linux based environment. This job performs deployment of software updates on this cloud platform comprised of Linux OS, BIOS/ firmware, Open Stack, Kubernetes, Calico, Ceph, Maria DB and other software components.

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, Open Stack, Kubernetes, Containers, Cloud Infrastructure platforms and monitoring of the server Infrastructure. Excellent trouble‑shooting and analytical skills in Systems Administration of Linux, Cloud, Open Stack and Kubernetes environment. Well versed and worked on operations and maintenance of Open Stack 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/ Open Stack/ OS perspective in outage / service degradation scenarios. Python & shell scripting. Deployment of NC Server infrastructure (Linux, Open Stack & Kubernetes). Knowledge and Understanding of CI/CD Pipeline in Jenkins, Git Hub 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).

• 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 Git Hub Repository Management
• 5 years’ experience in Dell and HP x 86 based Hardware Break/fix

• 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…