Birlasoft—Sr Technical Lead-Cloud & Infra Engg

Job description

Description: Area(s) of responsibility . Key Responsibilities 1. Ansible Automation & Deployment - Design, develop, and maintain Ansible playbooks, roles, and collections for provisioning, configuration management, OS patching, and compliance enforcement across enterprise Linux environments. - Build and manage Infrastructure-as-Code (IaC) pipelines integrating Ansible with CI/CD platforms (Jenkins, GitLab CI/CD) to deliver repeatable, auditable deployments. - Automate routine Linux operational tasks — user management, package installations, security hardening, disk expansion, log rotation — to reduce manual effort and eliminate configuration drift. - Develop and maintain Ansible Automation Platform (AAP/AWX) workflows, including dynamic inventories, credentials management, and job scheduling. - Integrate Ansible automation with AWS APIs and services (EC2, SSM, S3) to support cloud-native Linux provisioning and lifecycle management. - Version-control all automation artifacts in Git; conduct peer reviews and maintain documentation standards for all playbooks and roles. 2. Linux System Administration & Maintenance - Administer enterprise Linux distributions (RHEL 7/8/9, CentOS, Oracle Linux, Amazon Linux 2/2023) across on-premises, hybrid, and AWS environments. - Manage core Linux subsystems: kernel parameters, LVM/storage management, NFS/SMB mounts, network configuration (bonding, VLANs), firewalld/iptables, PAM, SSH hardening, and systemd services. - Perform security hardening using CIS/STIG benchmarks; manage SELinux policies, sudoers configuration, and PKI/certificate lifecycle. - Operate and optimize AWS Linux infrastructure: EC2 instance management, EBS volume management, AMI lifecycle, Auto Scaling Groups, and VPC networking for Linux workloads. - Utilize AWS Systems Manager (SSM) for patch management, parameter store management, session management, and automated runbook execution on Linux fleets. - Plan and execute scheduled maintenance: OS patching cycles, kernel upgrades, capacity planning, and infrastructure lifecycle activities in compliance with change management processes. Implement and validate high-availability and disaster recovery configurations including clustering (Pacemaker/Corosync), load balancing, and snapshot-based backup strategies