OpenStack Engineer

At Grape Up, we build Cloudboostr – an EU sovereign open cloud foundation purpose-built for enterprise AI workloads. Cloudboostr integrates a production-grade OpenStack private cloud infrastructure, a Kubernetes runtime layer, and an AI governance and orchestration layer into a single platform built entirely on upstream open-source components. As an OpenStack Engineer, you will be a core member of the Cloudboostr product team, developing the private cloud infrastructure layer that underpins everything else and deploying it in customer data centers and EU-based cloud environments across Europe. Responsibilities • Design, deploy, and operate enterprise-grade OpenStack environments as part of the Cloudboostr platform • Build and maintain automated infrastructure provisioning, upgrade, and backup pipelines using Terraform and Ansible • Ensure high availability, resilience, and performance of private cloud infrastructure across on-premises and EU-based deployment models • Implement and maintain network architectures and network security policies • Collaborate closely with the product team to ensure seamless integration between the Cloudboostr’s infrastructure, runtime and AI layers • Participate in incident response, root cause analysis, and continuous improvement of infrastructure reliability • Contribute to the evolution of Cloudboostr’s infrastructure architecture – your insights feed directly into the product roadmap Requirements • 3+ years of hands-on experience deploying and operating OpenStack in production environments • Deep understanding of core OpenStack services • Experience with Ceph for distributed storage • Strong knowledge of Linux (Ubuntu preferred) system administration and networking fundamentals • Experience with infrastructure-as-code using Terraform and configuration management (Ansible) • Familiarity with CI/CD concepts and pipeline tooling • Understanding of cloud security principles: network segmentation, IAM, secrets management • Strong problem-solving skills and ability to operate independently in a product-oriented engineering team Nice to have • Experience with Kubernetes and understanding of how OpenStack and Kubernetes interoperate • Experience operating OpenStack at scale across multiple physical sites or regions • Experience setting up and configuring GPU-enabled nodes in OpenStack Benefits of joining Grape Up • Non-corporate work environment among experienced engineers • Individual growth & development plan supported by cyclical feedback sessions • Access to knowledge platforms (e.g. Pluralsight) • Equipment of your choice • Financing of conferences, external trainings, and certifications • Language lessons (English, German and Polish for foreigners) • LuxMed private medical care • Weekly Lunch & Learn where we meet up in the office, lunch together, and share our knowledge • Employee referral program • Rewards for the success of the month and year awarded by our employees • Special rewards for your years with us (G-Man) • Integration activities