## Senior IT Engineer (Server)Applylocations: Madridtime type: Full timeposted on: Posted Todayjob requisition id: JR2644 Join Day One – Shaping the Future of Data Infrastructure Day One is a global leader in the development and operation of high-performance data centers. As one of the fastest-growing companies in the industry, we’ve built a robust presence across Asia and Europe — and we’re just getting started. As we expand into new international markets, we’re looking for talented, driven individuals to join us on this exciting journey. This is more than a job — it’s an opportunity to be a key contributor to our dynamic team and help shape the future of global data infrastructure. If you're passionate about innovation, technology, and growth, we invite you to be part of Day One’s next chapter. Day One is a integral leader in the development and operation of high-performance data centers. As one of the fastest-growing companies in the industry, we’ve built a robust presence across Asia and Europe — and we’re just getting started. As we expand into new international markets, we’re looking for talented, driven individuals to join us on this exciting journey. This is more than a job — it’s an opportunity to be a key contributor to our dynamic team and help shape the future of global data infrastructure. The Senior IT Engineer (Server) is responsible for the deployment, operation, maintenance, and continuous improvement of enterprise network, server, and data center infrastructure. This role combines hands-on technical expertise with infrastructure project delivery, ensuring reliable, scalable, and secure IT environments that support business operations. The successful candidate will provide Level 2 support across network and server domains, lead infrastructure implementations, maintain operational excellence,



and collaborate closely with internal stakeholders and operations teams.

Key Responsibilities
Infrastructure Project Delivery & Management* Support the end-to-end delivery of data center and IT infrastructure projects, including planning, design, implementation, testing, and transition to operations.
* Develop and maintain project scope, work breakdown structures (WBS), project schedules, RACI matrices, and risk registers.
* Ensure projects are delivered in alignment with business objectives, technical standards, budget, and timelines.
* Coordinate with internal teams, vendors, and stakeholders to ensure successful infrastructure deployments and operational readiness.
* Track project milestones, risks, dependencies, and deliverables while driving timely issue resolution.
* Stakeholder Communication & Governance: provide clear and consistent communication throughout the project lifecycle as well as prepare project status reports, executive summaries, implementation updates, and post-project documentation.
* Promote best practices in project governance, documentation, and change management.Network Infrastructure Support (Level 2)* Provide Level 2 operational support for enterprise, workplace, and data center networks.
* Troubleshoot and resolve complex network incidents involving routing, switching, connectivity, and network performance.
* Participate in network design, capacity planning, scalability assessments,



and infrastructure expansion initiatives.
* Create and maintain standardized device configuration templates, deployment scripts, and implementation procedures.
* Collaborate with Network Operations teams to improve operational processes, service quality, and delivery efficiency.
* Develop and maintain network operational standards, runbooks, and technical documentation.
* Support infrastructure lifecycle activities including deployment, maintenance, upgrades, patching, and decommissioning.
* Contribute to network monitoring, automation, reporting, and operational tooling initiatives.Systems Infrastructure Support (Level 2)* Provide Level 2 support for server, virtualization, storage, and infrastructure platforms.
* Perform day-to-day administration, maintenance, troubleshooting, and performance optimization of enterprise systems.
* Monitor infrastructure health, identify system bottlenecks, and implement improvements to maintain service availability and performance.
* Manage capacity planning for critical business systems, applications, and services.
* Execute backup operations and support disaster recovery testing and business continuity initiatives.
* Administer and support virtualization technologies including VMware v Center, VMware ESXi, Microsoft Hyper-V, and KVM/AHV environments.
* Manage and support server hardware platforms including Dell and HPE infrastructure and associated storage solutions.
* Identify, remediate, and patch infrastructure vulnerabilities across Windows Server and Linux environments.
* Support Microsoft collaboration platforms, including Microsoft Teams, Share Point, and related services.
* Participate in infrastructure standardization, automation, and continuous improvement ini

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