• Collaborate closely with multiple engineering teams to develop and improve internal tools and services. • Implement new infrastructure using Terraform. • Define scaling, alerting, and monitoring. • Fix live bugs and triage issues to identify root causes. • Validate the quality of work through manual and automated testing.

Role Description You'll join our Team Quality, which owns bugfixing, support integration and release quality for JTL-WaWi, our flagship .NET desktop ERP. Our mission is to turn firefighting into dependable, great release quality. As a Senior DevOps Engineer, you'll be the go-to expert for build automation, CI/CD and deployment — making sure our releases reach thousands of customer installations reliably. Azure is at the heart of our cloud journey, and you'll help us shape it. - Build, run and continuously improve our CI/CD pipelines for JTL-WaWi, including the migration from TeamCity to GitHub Actions (reproducible builds, fast feedback) - Provision and automate cost-aware Azure test environments (JTL Cloud) for build and release testing - Automate build signing / code-signing securely, with certificates managed in a vault rather than in the repository - Make our auto-update rollout (Velopack / delta packages) to customer installations dependable, with staged rollouts and reliable rollback - Establish secure secrets management (1Password / Azure Key Vault) and supply-chain security across the team - Improve observability (logs, metrics, traces) and incident response around build and release - Partner with development, QA, release management and architecture to make releases safer and more frequent Qualifications - Strong, hands-on experience with Microsoft Azure — provisioning, cloud services, and cost-aware operations (central to this role) - Several years of experience as a DevOps or Platform Engineer, ideally in a .NET environment - Solid CI/CD expertise with GitHub Actions and/or TeamCity, and a track record of reproducible builds - A strong automation and reliability mindset — you think about rollback, reproducibility, and the failure case before things break - Confident, secure handling of secrets and code-signing (vault / Azure Key Vault / 1Password) - Confident working with containers (Podman / Docker) and PowerShell scripting - You are fluent in English, both written and spoken Requirements - Experience with client / desktop deployment and auto-update mechanisms (Velopack or similar, delta packages) - Infrastructure as Code (Terraform / Bicep) for automating test environments - Experience with WSL under Windows - Observability and supply-chain security - Good German language skills Benefits - Remote-first within Germany, with the option to work remotely from eligible countries for up to 180 days per year - Meal allowance of up to €115 net per month - Support for setting up an ergonomic home office - Regular team events, company-wide gatherings, and summer and Christmas celebrations - EGYM Wellpass and JobRad subsidy - Employee savings benefits and company pension scheme

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.