Platform & Infrastructure Engineer

We require people to be on-site, 4 days/week at our Denver office and are unable to offer relocation support. LG AD SOLUTIONS LG Ad Solutions is a global leader in connected TV (CTV) and cross-screen advertising. We pride ourselves on delivering state-of-the-art advertising solutions that integrate seamlessly with today's ever-evolving digital media landscape. THE OPPORTUNITY We're growing our infrastructure team in Denver and looking for an engineer who has gotten their hands dirty with both physical infrastructure and cloud environments — someone who's moved past tutorials and has real scars from production systems. You don't need to have all the answers yet, but you should be able to own a task end-to-end, ask good questions, and learn fast in a hybrid environment that spans data centers and AWS. You'll work alongside senior engineers on a team that's actively building out our on-premises layer — provisioning servers, managing network infrastructure, extending our IaC practices, and keeping everything running reliably. This is a role where you'll be doing real work from day one, with mentorship and context from engineers who've built these systems before. A note on what we're not looking for: This role isn't for someone who's only worked in fully managed cloud environments and wants to stay there. The on-prem side of this team is real and growing — if physical infrastructure sounds boring or intimidating, this probably isn't the right fit. If it sounds interesting and you want to learn it properly, we'd love to talk. RESPONSIBILITIES Hybrid Infrastructure - Assist with deployment and maintenance of on-premises compute, storage, and networking infrastructure alongside our AWS environment - Participate in bare metal server provisioning and OS deployment workflows - Support day-to-day network operations: troubleshoot connectivity issues, help maintain firewall rules, VLANs, and VPN configurations under senior guidance - Help maintain and document storage systems and cloud connectivity configurations Automation & Platform Support - Write and maintain Infrastructure as Code using Terraform and Ansible for both on-prem and cloud resources - Support CI/CD pipeline maintenance and help onboard teams to existing platform tooling - Assist with Kubernetes cluster operations — deployments, troubleshooting, resource management — across bare metal and EKS environments - Contribute automation scripts and tooling improvements in Python or Bash Security & Reliability - Follow established security standards for on-prem and cloud: help maintain RBAC configurations, apply patches, and support access management processes - Participate in on-call rotation with support from senior engineers; help investigate and resolve infrastructure incidents - Contribute to monitoring dashboards and alert configuration across hybrid environments Collaboration - Work closely with senior engineers and application teams to understand infrastructure needs and translate them into tickets and tasks - Keep runbooks, wikis, and operational documentation current as you learn systems - Flag issues, ambiguities, and potential improvements — your observations from ground-level operations matter REQUIREMENTS - 3–5 years of experience in infrastructure, DevOps, platform engineering, systems administration, or a related role - At least one full-time industry role beyond your first job (internships and co-ops count toward the foundation, but we're looking for professional experience in a production environment) - Comfortable with Linux system administration: file systems, networking, process management, bash scripting - Hands-on experience with at least one IaC tool — Terraform or Ansible preferred - Working knowledge of AWS fundamentals: EC2, VPC, IAM, S3, and basic networking concepts - Basic networking understanding: IP addressing, DNS, VLANs, firewalls — you don't need to configure BGP from scratch, but you should be able to troubleshoot a connectivity issue - Experience with or exposure to Kubernetes — doesn't need to be bare metal, but you should understand the basics of pods, deployments, and services - Scripting ability in Python or Bash for automation tasks Nice to Have - Any exposure to physical infrastructure: data center work, homelab, or on-prem environments in a professional setting - Familiarity with configuration management tools (Ansible, Salt, or similar) - AWS certification (any level) or in-progress certification - Experience with observability tooling: Prometheus, Grafana, Datadog, or ELK LG Ad Solutions provides equal work opportunities to all team members and applicants, and it prohibits discrimination and harassment of any type on the basis of race, color, ethnicity, caste, religion, age, sex (including pregnancy), national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by our policies or federal, state, or local laws. We want to ensure that our hiring process is accessible. If you need reasonable accommodation for any part of the application process because of a medical condition or disability, please send an email to careers@lgads.tv to let us know the nature of your request.