Middleware Engineer, Generalist

The opportunity We are seeking a skilled Middleware Engineer with expertise in Ceph, OpenStack, and Linux Systems Administration to join our Infrastructure Team. In this role, you will operate, improve, and scale critical infrastructure services, bringing a balanced and expert focus across storage, cloud infrastructure, and operating systems. This position is ideally suited for a technically deep engineer who thrives working across multiple infrastructure domains — contributing both strategically and hands-on. You will play a key role in maintaining resilient platforms, improving operational efficiency through automation, and driving continuous gains in reliability for our internal teams. We are looking for a collaborative engineer with a proactive mindset who values documentation, knowledge sharing, and continuous improvement — someone who elevates the team around them as much as the infrastructure they manage. What you'll be doing Support and maintain OpenStack infrastructure, ensuring stable integration with storage services while continuously contributing to the ongoing operation, improvement, and scalability of the platform. Administer and optimise Ceph storage clusters, overseeing cluster health, capacity planning, performance tuning, reliability, and all day-to-day operational responsibilities across the storage environment. Perform comprehensive Linux systems administration across infrastructure environments, including provisioning, configuration management, patching, performance tuning, troubleshooting, and full lifecycle management. Automate operational workflows using scripting languages and infrastructure automation tools such as Ansible to drive consistency, scalability, and efficiency across Ceph, OpenStack, and Linux platforms. Troubleshoot complex, cross-platform infrastructure issues spanning storage, compute, networking, and operating systems — conducting thorough root-cause analysis and implementing long-term, sustainable improvements. What we're looking for Solid experience working with OpenStack in an operational or engineering capacity, with a strong understanding of its integration with underlying storage and networking layers. Demonstrated expertise in Ceph storage administration, including cluster operations, configuration, health monitoring, troubleshooting, and performance tuning in production environments. Strong Linux systems administration skills, with proven experience managing and maintaining production Linux environments at scale. Hands-on experience with automation, scripting, and infrastructure-as-code tooling for provisioning, configuration management, and operational workflow optimisation. Strong knowledge of Linux and host networking, with the ability to troubleshoot and problem-solve effectively across distributed systems and complex infrastructure services. You might also have Experience with monitoring and observability platforms such as Prometheus, Grafana, or the ELK Stack. Familiarity with network infrastructure configuration, including switches and routers. Knowledge of security best practices, including hardening, patching, and compliance considerations in enterprise infrastructure environments. Experience with disaster recovery, backup strategies, and business continuity planning. Exposure to public cloud platforms such as AWS, Azure, or Google Cloud. Additional information Relocation support is not available for this position Work visa/immigration sponsorship is not available for this position Benefits At Unity, we want our team members to thrive. We offer a wide range of benefits designed to support well-being and work-life balance. Please note: Benefits eligibility, specific offerings, and coverage vary based on the country and employment status. While specific benefits vary, here are some of the ways we strive to take care of our eligible team members globally: Comprehensive health, life, and disability insurance | Commute subsidy | Employee stock o ... (truncated, view full listing at source)