Senior Systems Administration

AT&T•Alpharetta, GA

7d•Onsite

About The Position

The Senior Systems Administration role is part of AT&T’s Network Cloud Operations organization and is responsible for 24x7 operations, administration, and maintenance of server infrastructure in AT&T’s Linux-based Network Cloud environment. The role deploys software updates across a cloud platform that includes Linux OS, BIOS and firmware, OpenStack, Kubernetes, Calico, Ceph, MariaDB, and other software components. The position also performs work related to software, maintenance, and operation of systems used by AT&T or its clients. Responsibilities include assessing feasibility, creating requirements, managing projects, and integrating and testing technical software solutions. The role is based onsite in Alpharetta, Georgia, five days per week. No relocation is offered, and applicants must not require employer sponsorship now or in the future.

Requirements

3–5 years of related experience in 24x7x365 operations; experience may include night and weekend shifts.
3–5 years of experience working in a production environment.
5 years of Linux System Administration experience.
1–3 years of Kubernetes experience.
1–3 years of experience executing and merging Jenkins pipelines, including certificate rotations, OS and code upgrades, and firmware upgrades.
1–3 years of GitHub repository management experience.
5 years of experience with Dell and HP x86-based hardware break/fix.
Broad skills across Linux, KVM, OpenStack, Kubernetes, containers, cloud infrastructure platforms, and server infrastructure monitoring.
Strong troubleshooting and analytical skills in Linux, cloud, OpenStack, and Kubernetes systems administration.
Experience operating and maintaining OpenStack modules including Keystone, Nova, Neutron, Swift, Cinder, Heat, Glance, Horizon, and Fuel.
Knowledge of high availability, DRS, fault tolerance, scalability, reliability, and shared resources.
Python and shell scripting skills.
Knowledge and understanding of CI/CD pipelines in Jenkins and GitHub.
Strong analytical, logical, and problem-solving skills.
Strong verbal and written communication and coordination skills.
Positive attitude when working with peers, customers, clients, and vendors.
Bachelor of Science in Computer Science, Electronics, Engineering, or Communications preferred.
Applicants must not require employer sponsorship now or in the future.

Nice To Haves

Certification in Systems Administration of Linux, OpenStack, and Kubernetes is preferable.
1–3 years of experience with CI/CD, code upgrades, and firmware upgrades.
1–3 years of Nagios experience.
1–3 years of Prometheus experience.
1–3 years of Grafana experience.
1–3 years of Kibana experience.
1–3 years of API experience.
1–3 years of Ceph experience.
1–3 years of OpenStack experience.
1–3 years of Ansible experience.
1–3 years of TCP/IP networking experience.
1–3 years of Calico experience.
1–3 years of SSL/TLS certificates experience.
Bachelor of Science in Computer Science, Electronics, Engineering, or Communications.

Responsibilities

Operate, administer, and maintain server infrastructure in AT&T’s Linux-based Network Cloud environment on a 24x7 basis.
Deploy software updates across Linux OS, BIOS and firmware, OpenStack, Kubernetes, Calico, Ceph, MariaDB, and other platform components.
Perform feasibility assessments, create requirements, manage projects, and integrate and test technical software solutions.
Create, review, approve, and implement changes in the Network Cloud server environment.
Restore applications and services during outages or service degradation from hardware, OpenStack, and operating-system perspectives.
Deploy Network Cloud server infrastructure, including Linux, OpenStack, and Kubernetes.
Coordinate with OS vendors, development teams, and production support teams on root-cause analysis and configuration changes.
Coordinate with Dell and HP hardware vendors to replace faulty hardware.
Work in 24x7 rotational shift operations, which may include night and weekend shifts.
Provide a high level of customer focus and collaborate with peers, customers, clients, vendors, and diverse teams across regions and cultures.

Benefits

Medical, dental, and vision coverage
401(k) plan
Tuition reimbursement program
Paid time off and holidays, including at least 23 vacation days each year and 9 company-designated holidays, based on date of hire
Paid parental leave
Paid caregiver leave
Additional sick leave beyond what state and local law require may be available but is unprotected
Adoption reimbursement
Short- and long-term disability benefits
Life and accidental death insurance
Supplemental benefit programs, including critical illness, accident, hospital indemnity, and group legal
Employee Assistance Programs
Employee wellness programs
Employee discounts of up to 50% on eligible AT&T mobility plans and accessories, AT&T internet and fiber where available, and AT&T phone