Senior IT Engineer (Server)

Dunnock Invest, S.L.; Madrid; Presencial; EUR 70.000 - 110.000; Jornada completa

Descripción de la vacante

DayOne is seeking a Senior IT Engineer (Server) to deploy, operate, and continuously improve enterprise network, server, and data center infrastructure across global markets. You will provide Level2 support and lead infrastructure implementations in collaboration with internal teams and vendors.

The role requires hands-on expertise in virtualization, operating systems, and data center operations, with strong stakeholder communication and a focus on reliability, security, and scalability.

Formación

• Minimum 3 years of experience managing and supporting medium-to-large enterprise network/server environments.
• Experience with VMware vCenter/ESXi, Hyper-V, and KVM/AHV virtualization.
• Fluent in English and Spanish; strong communication with stakeholders.

Responsabilidades

• Lead end-to-end delivery of data center and IT infrastructure projects (planning, design, implementation, testing, transition to operations).
• Provide Level2 network and server support, troubleshoot incidents, and ensure performance and reliability.
• Maintain infrastructure documentation, runbooks, and standard practices; support automation and monitoring initiatives.
• Participate in disaster recovery testing and business continuity activities.

Conocimientos

Enterprise networking

Network troubleshooting

Windows Server

Linux

Virtualization

Storage infrastructure

Scripting

Certifications

Networking certifications

English and Spanish

Educación

IT certifications (MCSA/MCSE)

Herramientas

VMware vCenter/ESXi

Hyper-V

KVM/AHV

Dell/HPE Hardware

Descripción del empleo

Join DayOne – Shaping the Future of Data Infrastructure DayOne 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 DayOne’s next chapter.

DayOne 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.

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 Level2 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 (Level2): provide Level2 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 (Level2): provide Level2 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 vCenter, 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, SharePoint, and related services. Participate in infrastructure standardization, automation, and continuous improvement initiatives.
• Data Center & Infrastructure Operations: support the deployment, expansion, and operational management of data center, enterprise network, and workplace infrastructure environments. Ensure infrastructure availability, reliability, security, and compliance with operational standards. Maintain accurate infrastructure inventories, diagrams, asset records, and operational documentation. Participate in incident response, problem management, and root cause analysis activities. Support continuous improvement initiatives focused on operational efficiency, service quality, and infrastructure resilience.

Qualifications & Experience Required

Minimum 3 years of experience managing and supporting medium‑to‑large enterprise network and server environments in rapidly scaling international environments.

• Strong hands‑on experience with enterprise networking technologies, including routing, switching, and network troubleshooting.
• Experience administering Windows Server and Linux operating systems.
• Hands‑on experience with virtualization platforms such as VMware vCenter/ESXi, Hyper‑V, and KVM/AHV.
• Experience supporting enterprise server and storage infrastructure.
• Strong analytical, troubleshooting, and problem‑solving skills.
• Excellent communication and stakeholder management abilities.
• Fluent in English and Spanish.
• Preferred ITIL Foundation Certification and/or Agile Project Management experience.
• Microsoft certifications (MCSA, MCSE, or equivalent).
• Cisco CCNP, Huawei HCIP, or equivalent networking certifications.
• Knowledge of infrastructure monitoring, automation, scripting, and operational tooling.
• Experience participating in infrastructure migration, expansion, or transformation projects.

Why join DayOne?

Be part of a company scaling fast in a booming industry. Work on an international stage with global leaders. Shape your career in a culture that values curiosity, agility, and bold thinking.

DayOne is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

DayOne is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

DayOne is a data center pioneer that develops and operates next‑gen digital infrastructure for industry leaders who demand reliable, cost‑effective and quickly scalable solutions. Our cutting‑edge facilities empower hyperscalers and large enterprises to achieve rapid deployment and enhance connectivity, driving transformative engagement and innovation as we shape the future of industries.

DayOne’s data centers are located across key markets, including Singapore, Johor (Malaysia), Batam (Indonesia), Greater Bangkok, Hong Kong SAR, Tokyo, and beyond.

Headquartered in Singapore, DayOne’s leadership team draws on over two decades of industry experience and a track record of building Asia's largest data center business. With DayOne, they have created the SIJORI (Singapore, Johor, and Riau Islands) market as a global data center hub.

With DayOne, they have created the SIJORI (Singapore, Johor, and Riau Islands) market as a global data center hub. As demand for strategically located and customized data centers rises, DayOne's entrepreneurial spirit, customer-first strategy, deep local partnerships, and agile executional capabilities uniquely position us to power the growth ambitions of leading hyperscalers and large enterprises around the world.