Role Description As a senior member of our Kubernetes Platform Engineering team, you will be responsible for the reliability, scalability, security, and automation of our OpenShift ecosystem. Join our team to help steward our on-prem Cloud deployed on High-Performance Compute infrastructure. What You'll Do - Administer, maintain, and optimize enterprise OpenShift Kubernetes platforms deployed to our High-Performance Compute infrastructure - Manage large-scale OpenShift clusters using: - OpenShift Console - OpenShift CLI (oc) - Advanced Cluster Manager (ACM) - Infrastructure automation tools - Design and implement automated deployment, configuration, and lifecycle management solutions - Develop Infrastructure-as-Code and automation frameworks using Ansible and scripting - Troubleshoot complex Kubernetes, container, networking, and platform issues - Collaborate with developers to improve application reliability, observability, scalability, and performance - Implement enterprise security controls and platform hardening standards - Support high availability, disaster recovery, and multi-cluster architectures - Drive platform modernization initiatives and operational excellence through automation - Participate in architecture reviews and help define the future state of enterprise container platforms Qualifications - Bachelor's degree or equivalent experience - 5+ years administering Kubernetes platforms in production environments - Experience with Ansible and automation frameworks - Experience with container technologies and image creation - Experience troubleshooting enterprise-scale platform issues - Experience deploying and administering OpenShift Virtualization (KubeVirt) to support both containerized and virtual machine workloads - Experience implementing and supporting enterprise monitoring, logging, and alerting solutions using Grafana, Prometheus, Loki, AlertManager, and Thanos - Experience with Git Action pipeline deployments for OpenShift, bash scripting using oc for controls, deployments, and working closely with application teams on deployments, new namespaces, affinities, and sizing - Experience with cross-datacenter, high availability failover, and load balancing (F5 & haproxy) between multiple datacenters and K8s clusters - Solid knowledge of Kubernetes internals including: - Scheduling - Networking - Storage - Ingress and load balancing - Operators - Cluster lifecycle management - Proficiency in shell scripting and at least one programming language such as Python or Go - Proven deep expertise with Red Hat OpenShift - Proven solid Linux administration skills, preferably Red Hat Enterprise Linux - Proven excellent communication and technical documentation skills - Demonstrated security-first mindset with expertise in platform hardening, identity and access management, vulnerability remediation, encryption, and regulatory compliance Preferred Qualifications - Red Hat OpenShift certification - Experience with OpenShift deployed to IBM LinuxONE and IBM Z environments - s390x Linux architecture - Experience with GitOps, CI/CD pipelines, and Infrastructure-as-Code - Experience supporting high-availability Kubernetes environments - Experience supporting mission-critical applications with strict uptime requirements - Knowledge of enterprise networking concepts and Kubernetes networking architectures - Familiarity with GPFS (IBM Spectrum Scale) or other distributed storage technologies Benefits - Comprehensive benefits package - Incentive and recognition programs - Equity stock purchase - 401k contribution (all benefits are subject to eligibility requirements) Company Description At UnitedHealth Group, our mission is to help people live healthier lives and make the health system work better for everyone. We believe everyone–of every race, gender, sexuality, age, location and income–deserves the opportunity to live their healthiest life. We are committed to mitigating our impact on the environment and enabling and delivering equitable care that addresses health disparities and improves health outcomes.

• Design and implement complex cloud architectures, ensuring security, compliance, and cost optimization. • Implement and evolve observability and monitoring solutions, promoting custom instrumentation in applications and infrastructure. • Automate infrastructure processes using Infrastructure as Code (IaC) and GitOps practices, creating standards and training the team. • Serve as a technical reference, mentoring colleagues and promoting cloud and DevOps best practices. • Collaborate with development and operations teams to promote resilience, high availability, and continuous innovation. • Apply Artificial Intelligence techniques in projects to improve automation, monitoring, and data analysis.

• Set your own working hours • Work from home (remote) • Take the next step in your career • Learn how to lead teams and run a company • Performance- and results-oriented compensation

• Design, implement, and maintain secure, scalable infrastructure in **AWS** • Manage, secure, and improve **Kubernetes**-based environments, including production workloads • Build and maintain infrastructure as code using **Terraform** • Harden production systems across cloud, compute, container, identity, and network layers • Develop and maintain secure baseline configurations for infrastructure and platform services • Support vulnerability management, patching, remediation, and configuration compliance efforts across environments • Configure, administer, and patch both **Linux and Windows VMs** • Support identity and access management practices, including least privilege, role design, and privileged access controls • Contribute to administration and integration of **Active Directory domains** where needed • Partner with engineering teams to improve security within CI/CD pipelines, deployment workflows, and operational processes • Support **compliance initiatives, audits, evidence collection, and technical control validation** • Develop and maintain documentation, operational runbooks, technical standards, and playbooks • Monitor, troubleshoot, and resolve complex infrastructure and security issues with clear and timely communication • Participate in incident response and post-incident analysis when infrastructure or platform issues arise • Stay current on cloud, infrastructure, and security best practices that can improve platform resilience and delivery