Senior Linux & Infrastructure Automation Engineer
About The Position
The Senior Linux & Infrastructure Automation Engineer is an individual contributor responsible for engineering, scaling, and maintaining the underlying Valassis DMT platform environment. The role focuses on hands-on systems engineering, configuration management, and high-availability cloud infrastructure across hybrid environments, including bare-metal servers, collocations, and cloud architectures. The engineer applies expertise in Linux systems administration, Puppet and Ansible automation, and OpenStack operations to provision and maintain infrastructure. The position also involves virtualization and hypervisor operations, persistent storage administration, and executing platform refreshes, legacy environment decommissionings, and infrastructure migrations across datacenter footprints.
Requirements
- 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.
- Expert-level hands-on experience engineering, hardening, and maintaining enterprise Ubuntu/Debian server environments.
- Proven mastery authoring custom Puppet modules and Ansible playbooks or roles to automate configuration, orchestration, and system management at scale.
- Strong foundational background in bare-metal provisioning concepts and hypervisor/container runtimes, including KVM, LXD, and ESXi.
- Solid understanding of enterprise storage architectures, including SAN/NAS devices, block/object storage concepts, and volume management.
- Working knowledge of cross-platform Active Directory integration, enterprise PKI/certificate enrollment, and domain identity services.
Nice To Haves
- Hands-on experience configuring, troubleshooting, and maintaining production OpenStack deployments, including Nova, Neutron, Cinder, and Keystone.
- Direct experience configuring, operating, or maintaining Ceph storage clusters.
- Hands-on experience with Canonical MAAS or similar automated bare-metal provisioning platforms.
- Familiarity with MicroCloud deployment and lightweight cloud infrastructure environments.
Responsibilities
- Design, develop, and maintain declarative Puppet and Ansible configuration modules to automate system provisioning, application deployment, and continuous compliance across bare-metal and virtualized nodes.
- Administer, tune, and troubleshoot enterprise Linux environments, primarily Ubuntu, for performance, kernel optimization, security hardening, and uptime.
- Operate and optimize virtualization and hypervisor layers, including OpenStack, LXD, KVM, and ESXi lifecycles.
- Drive automated bare-metal server provisioning.
- Administer and maintain persistent storage infrastructure and physical SAN equipment, including PureStorage or enterprise S3-compatible targets.
- Execute platform refreshes, legacy environment decommissionings, and infrastructure migrations across datacenter footprints.
Benefits
- Medical coverage
- Dental coverage
- Vision coverage
- Paid time off
- Disability insurance
- 401(k) with company match
- Life insurance
- Voluntary supplemental insurance coverages
- Parental leave
- Adoption assistance
- Tuition assistance
- Employer/partner discounts
- Depending on the role, participation in a bonus, commission, or incentive program may be included in total compensation.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
