Senior Linux & Infrastructure Automation Engineer

The Senior Linux & Infrastructure Automation Engineer is responsible for engineering, scaling, and maintaining the underlying Valassis DMT platform environment. This individual contributor role focuses heavily on hands-on systems engineering, robust configuration management, and high-availability cloud infrastructure execution across hybrid environments, spanning bare-metal servers, collocations, and cloud architectures. The position requires deep expertise in Linux systems administration, advanced automation using Puppet and Ansible, and experience deploying and operating OpenStack environments.

Core Responsibilities

• Infrastructure Automation & Configuration Management: Design, develop, and maintain declarative configuration modules using Puppet and Ansible to automate system provisioning, application deployment, and continuous compliance across bare-metal and virtualized nodes.
• Linux Systems Engineering: Administer, tune, and troubleshoot enterprise Linux environments (primarily Ubuntu) for optimal performance, kernel optimization, security hardening, and maximum uptime.
• Cloud & Virtualization Operations: Operate and optimize virtualization and hypervisor layers (including OpenStack, LXD, KVM, and ESXi lifecycles) and drive automated bare-metal server provisioning.
• Storage & Infrastructure Maintenance: Administer and maintain persistent storage infrastructure alongside physical SAN equipment (PureStorage or enterprise S3-compatible targets).
• Technical Execution & Migrations: Actively execute platform refreshes, legacy environment decommissionings, and infrastructure migrations across datacenter footprints.