Senior Principal OpenShift and Linux Platform Engineer - Remote

UnitedHealth Group•Eden Prairie, MN

1d•$134,600 - $230,800•Remote

About The Position

Optum Tech is a global leader in health care innovation. Our teams develop cutting-edge solutions that help people live healthier lives and help make the health system work better for everyone. From advanced data analytics and AI to cybersecurity, we use innovative approaches to solve some of health care’s most complex challenges. Your contributions here have the potential to change lives. Ready to build the next breakthrough? Join us to start Caring. Connecting. Growing together. Do you want the opportunity to build and innovate with autonomy? Do you enjoy pushing platforms and infrastructure to new levels of performance and reliability? Do you want to work alongside talented teammates who value collaboration, trust, and positive intent? At UnitedHealth Group, we're redefining how technology powers healthcare for millions of people. Every day, our engineers design, build, and operate some of the most advanced enterprise platforms in the industry—delivering the reliability, scale, security, and innovation that healthcare depends on. We're looking for a Senior Kubernetes & Linux Platform Engineer who thrives on solving complex infrastructure challenges and wants to work with cutting-edge technologies including Red Hat OpenShift, Kubernetes, Linux, automation, high-performance storage, and next-generation enterprise computing platforms such as IBM LinuxONE. If you're passionate about large-scale platform engineering, automation, and cloud-native technologies, this is your opportunity to make a meaningful impact while working alongside some of the industry's top technical talent. What You'll Do As a key member of our Platform Engineering team, you will design, automate, and operate mission-critical infrastructure supporting enterprise-scale applications and services using the latest state-of-the art enterprise technologies. Join our team to help steward our on-prem Cloud deployed on High-Performance Compute infrastructure. You’ll enjoy the flexibility to work remotely from anywhere within the U.S. as you take on some tough challenges. For all hires in the Minneapolis or Washington, D.C. area, you will be required to work in the office a minimum of four days per week.

Requirements

10+ years of Linux systems administration experience
5+ years of Kubernetes administration experience in enterprise environments
Solid experience administering OpenShift Kubernetes platforms
Solid experience automating infrastructure deployment, configuration, and operational processes using Ansible, scripting, and Infrastructure-as-Code practices
Experience with networking concepts including bonding, VLANs, and macvtap
Experience with KVM virtualization technology
Experience with Kubernetes container technologies and image creation processes
Experience implementing and supporting enterprise monitoring, logging, and alerting solutions using Grafana, Prometheus, Loki, AlertManager, and Thanos
Experience deploying and administering OpenShift Virtualization (KubeVirt) to support both containerized and virtual machine workloads
Experience administering Red Hat Identity Manager (IdM), including LDAP, Kerberos, SSSD, certificate management, and enterprise authentication services
Experience with cross-datacenter, high availability failover, and load balancing (F5 & haproxy) between multiple datacenters and K8s clusters
Demonstrated security-first mindset with expertise in platform hardening, identity and access management, vulnerability remediation, encryption, and regulatory compliance
Deep expertise with Red Hat Enterprise Linux with ability to use automation for operating system deployment and patching methodologies
Solid understanding of: SELinux, Linux firewall management, Package management and dependency resolution, Open-source software ecosystems
Expertise with Linux storage and storage encryption technologies including: LVM, dm-crypt, LUKS2
Proficiency with Ansible and shell scripting

Nice To Haves

Red Hat certifications or equivalent practical experience
Experience operating large-scale OpenShift or Kubernetes platforms
Experience designing or supporting high availability and disaster recovery environments
Experience with at least one modern programming language such as Python, Go, Java, Rust, or C
Experience working with modern CI/CD and DevOps practices
Experience with IBM LinuxONE or IBM Z platforms, including: Linux on s390x architecture, LinuxONE hardware environments, Logical Partitions (LPARs), OSA, FCP, RoCE, and Crypto Express adapters, Hardware Management Consoles (HMCs) in Dynamic Partition Manager (DPM) mode, Brocade SAN technologies and zoning
Understanding of CHPIDs and PCHIDs

Responsibilities

Build, administer, and optimize enterprise OpenShift Kubernetes environments deployed to our High-Performance Compute infrastructure: OpenShift Console, OpenShift Command Line (oc), Advanced Cluster Manager (ACM), Infrastructure automation and orchestration tools
Manage and support Red Hat Enterprise Linux environments at scale (Kernal Virtual Machine hosts and Virtual Machines)
Develop automation and Infrastructure-as-Code solutions using Ansible, shell scripting, and modern development practices
Implement enterprise-grade security, encryption, backup, and data protection solutions
Configure, administer, and optimize GPFS (IBM Spectrum Scale) distributed storage environments
Troubleshoot and resolve complex infrastructure, performance, storage, networking, and platform issues
Partner with software engineers, architects, security teams, and network engineers to deliver highly available and scalable solutions
Drive operational excellence through automation, monitoring, and continuous platform improvement
Contribute to architecture decisions supporting the next generation of healthcare technology platforms
Familiarity with supporting AI workloads on Linux and Kubernetes platforms
Leverage enterprise-approved AI tools to enhance productivity and innovation by streamlining workflows and automating repetitive tasks
Evaluate emerging trends to drive continuous improvement and strategic innovation