Job Description:

Operating Systems & Systems Fundamentals

• Manage Linux/Unix systems, including files, filesystems, permissions, process management, logs, daemons, and storage.

Networking

• Design, configure, and troubleshoot TCP/IP networks including subnetting, routing, DNS, and protocol stacks (TCP/UDP, HTTP/S, SMTP, IMAP, POP3, SNMP, NTP, DHCP, SSH).
• Implement and monitor security controls such as firewalls, NAT, VPNs, reverse proxies, and bastion hosts.
• Configure and maintain load balancing solutions with understanding of L4 vs L7 load balancers.

Virtualization & Containers

• Deploy and manage virtual machines using VMware, Hyper-V, or KVM; handle VM creation, resource allocation, and snapshots.
• Understand and articulate the differences between virtualization and containerization.
• Build, run, and manage containers with Docker; use Docker Compose and manage container registries (DockerHub, Azure Container Registry).
• Deploy and scale workloads on Kubernetes, including pods, deployments, services, scaling, ingress, and service mesh solutions (Istio, Linkerd).

Cloud Infrastructure (Azure Focus)

• Architect and manage cloud resources using IaaS, PaaS, SaaS models; select appropriate regions, and understand SLAs.
• Provision and manage Azure compute (VMs, Scale Sets), storage (Blob, Disk, Files, Queues), networking (VNets, NSGs, VPN Gateway, ExpressRoute), and databases (Azure SQL, Cosmos DB, PostgreSQL, MySQL).
• Implement monitoring and identity solutions using Log Analytics, Application Insights, Azure Active Directory, and RBAC.
• Employ Infrastructure as Code (IaC) using ARM templates, Bicep, or equivalent.

Infrastructure as Code & Automation

• Manage source code and infrastructure with Git and GitOps practices.
• Automate resource provisioning with Terraform or Pulumi.
• Configure systems using Ansible, Chef, or Puppet; automate Windows infrastructure with PowerShell DSC.
• Script using Bash and Python for automation and orchestration.
• Design and maintain CI/CD pipelines for infrastructure deployment.

Application Runtime Management

• Deploy and manage web servers (Apache, Nginx, IIS) and reverse proxies.
• Administer databases—both SQL (MySQL, PostgreSQL, SQL Server) and NoSQL (MongoDB, Redis).
• Integrate and manage queueing and messaging systems (RabbitMQ, Kafka, Azure Service Bus).
• Implement caching solutions with Redis and Memcached.
• Monitor application and infrastructure health using Prometheus, Grafana, and the ELK/EFK stack.

Security & Compliance

• Implement and manage identity and access management (AAA, SSO, MFA, federated identities).
• Secure secrets with SSH keys, Vault, or Azure Key Vault.
• Manage certificates (TLS/SSL, PKI).
• Ensure compliance with standards such as ISO, SOC2, HIPAA, and GDPR.
• Perform container image scanning and enforce runtime security.

Observability & Incident Response

• Set up and manage monitoring for logs, metrics, and traces; leverage tools like ELK, Splunk, Azure Monitor.
• Demonstrate understanding of reliability metrics—SLA, SLO, SLI.
• Participate in incident management, follow ITIL basics, conduct blameless postmortems, manage tickets, and drive change management processes.

Key Skills & Qualifications

• Strong fundamentals in Linux/Unix administration and process management.
• Deep understanding of networking protocols, security, and load balancing.
• Hands-on experience with virtualization, containerization (Docker, Kubernetes), and cloud architectures (especially Azure).
• Proficient with IaC tools (ARM, Bicep, Terraform, Pulumi) and configuration management (Ansible, Chef, Puppet).
• Skilled in automation and scripting (Bash, Python, PowerShell).
• Experience with modern CI/CD practices and tools.
• Competent in application runtime management, monitoring, and troubleshooting.
• Solid grasp of security best practices, secrets management, and compliance frameworks.
• Familiarity with incident response, monitoring platforms, and ITIL methodologies.
• Excellent communication, documentation, and problem-solving abilities.

Preferred Certifications (optional)

• Microsoft Certified: Azure Administrator Associate / Solutions Architect
• Certified Kubernetes Administrator (CKA)
• HashiCorp Certified: Terraform Associate
• CompTIA Security+ or equivalent

Weekly Hours:

40

Time Type:

Regular

Location:

IND:AP:Hyderabad / Argus Bldg 4f & 5f, Sattva, Knowledge City- Adm: Argus Building, Sattva, Knowledge City

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.

Job ID R-85671 Date posted 10/14/2025