Senior Systems Administration

AT&T•Alpharetta, GA

8d•$106,100 - $159,100•Onsite

About The Position

AT&T is hiring a Senior Systems Administration professional for its Network Cloud Operations organization. This full-time, onsite role is based in Alpharetta, Georgia, and is performed at the designated work location five days per week. The role is responsible for 24x7 operations, administration, and maintenance of server infrastructure in AT&T’s Network Cloud Linux-based environment. Work includes deploying software updates across a cloud platform comprising Linux OS, BIOS and firmware, OpenStack, Kubernetes, Calico, Ceph, MariaDB, and other software components. The role focuses on software, maintenance, and operations of systems used by AT&T or its clients. It also involves assessing feasibility, creating requirements, managing projects, and integrating and testing technical software solutions. The position requires rotational shift operations, which can include nights and weekends. No relocation is offered, and AT&T will not hire applicants who require employer sponsorship now or in the future.

Requirements

3–5 years of related experience and 3–5 years of working experience in a production environment.
Five years of experience in Linux system administration.
One to three years of experience with Kubernetes.
One to three years of experience executing and merging Jenkins pipelines, including certificate rotations, OS and code upgrades, and firmware upgrades.
One to three years of experience in GitHub repository management.
Five 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 with operations and maintenance of OpenStack modules including Keystone, Nova, Neutron, Swift, Cinder, Heat, Glance, Horizon, and Fuel.
Understanding 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.
High customer focus and the ability to work positively with peers, customers, clients, and vendors across diverse teams and cultures.
Strong verbal and written coordination and communication skills.
Ability to work 24x7 rotational shifts, including possible night and weekend shifts.

Nice To Haves

Certification in systems administration of Linux, OpenStack, and Kubernetes.
Bachelor of Science in Computer Science, Electronics, Engineering, or Communications.
One to three years of experience with CI/CD code upgrades and firmware upgrades.
One to three years of experience with Nagios, Prometheus, Grafana, Kibana, APIs, Ceph, OpenStack, Ansible, TCP/IP networking, Calico, or SSL/TLS certificates.

Responsibilities

Operate, administer, and maintain server infrastructure in AT&T’s 24x7 Network Cloud Linux-based environment.
Deploy software updates and Network Cloud server infrastructure, including Linux, OpenStack, and Kubernetes components.
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.
Coordinate with OS vendors, development teams, and production support teams on root-cause analysis and configuration changes.
Coordinate with hardware vendors, including Dell and HP, to replace faulty hardware.
Perform feasibility assessments, create requirements, manage projects, and integrate and test technical software solutions.
Work in 24x7 rotational shift operations, including shifts that may occur at night or on weekends.

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 nine 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 coverage.
Employee Assistance Programs (EAP).
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.