Job Responsibilities
Serve as the primary off‑shore DevOps/Infra support lead for Automation Tools and 4G/5G Core Network Simulators across NPRD/Labs and PROD environments.
Design, build, and maintain Azure DevOps CI/CD pipelines using a 3‑tier (hyper→macro→micro) architecture to automate packaging, publishing, and deployments.
Develop and maintain Helm v3 (OCI) charts for application and infra components; package/publish artifacts to JFrog Artifactory OCI.
Automate Kubernetes deployments via Python orchestration (e.g., deploy.py), including config substitution, sequencing, and post‑deploy health checks.
Own secrets management end‑to‑end: Ansible Vault encryption, HashiCorp Vault runtime retrieval (AppRole/KV), and token rotation with zero‑plaintext controls.
Provision and operate infrastructure: KVM/QEMU/libvirt VM lifecycle on Simzone hosts; implement SR‑IOV passthrough and host networking configurations.
Author/maintain Infrastructure‑as‑Code using OpenStack HEAT (on‑prem VM provisioning) and Azure Bicep (NAKS/AON resources).
Configure advanced K8s networking and security:



Multus NADs (multi‑NIC pods), MetalLB L2 VIPs, Calico policies, SR‑IOV for performance I/O.
Manage storage and stateful services: Rook‑Ceph provisioning (RWX/RWO), local‑storage for single‑node clusters, PVC sizing, and storage class governance.
Build/maintain large Ansible automation footprint (deployment, upgrades, backup/restore, mechID mgmt, vault operations, compliance tasks).
Operate AOSM lifecycle pipelines (nfPL0→nfPL4) to publish NF definitions, build deployment configs, deploy to NAKS, and onboard to HCEV.
Drive workplace promotion (NPRD→PROD): release branching, versioning updates, quarterly release coordination, and consistency across lab/pre‑prod/prod.
Maintain per‑instance configuration at scale (20+ K8s instances) using real‑parameters-values.json / input-values.json and enforce correctness across environments.
Implement observability and verification: deploy kube‑prometheus‑st

📌 Sr Specialist System Engineering (Bengaluru)
🏢 At&T
📍 Bengaluru