Live opening · Posted 6 days ago
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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.
Bachelor's degree in Computer Science, Information Technology, or a related engineering discipline, or equivalent professional work experience.
Minimum of 5–7+ years of progressive hands-on experience in Linux infrastructure engineering, systems administration, and cloud infrastructure automation.
Required Skills
Linux Administration - Expert-level, hands-on experience engineering, hardening, and maintaining enterprise Ubuntu/Debian server environments.
Automation & CM - Proven mastery authoring custom Puppet modules and Ansible playbooks/roles to automate configuration, orchestration, and system management at scale.
Orchestration & Virtualization -Strong foundational background in bare-metal provisioning concepts and hypervisor/container runtimes (KVM, LXD, ESXi).
Storage Fundamentals -Solid understanding of enterprise storage architectures, including SAN/NAS devices, block/object storage concepts, and volume management.
Identity & Security -Working knowledge of cross-platform Active Directory integration, enterprise PKI/certificate enrollment, and domain identity services.
Preferred Skills (Nice to Have)
OpenStack Operations: Hands-on experience configuring, troubleshooting, and maintaining production OpenStack deployments (Nova, Neutron, Cinder, Keystone).
Scale-Out Storage (Ceph): Direct experience configuring, operating, or maintaining Ceph storage clusters.
Bare-Metal Provisioning Tools (MAAS): Hands-on experience with Canonical MAAS or similar automated bare-metal provisioning platforms.
MicroCloud & Edge Frameworks: Familiarity with MicroCloud deployment and lightweight cloud infrastructure environments.
Employment type
Full-time
Work arrangement
Yes
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