Senior Windows AdministratorVerified as a real position

Who we’re looking for

• B A in Information Systems or related field, or equivalent experience
• 5 + years of proven experience with Windows administration and support
• Working knowledge of Windows Server technologies (such as Active Directory, DNS, DHCP and File/Print services)
• Basic to Intermediate scripting skills using batch scripts and PowerShell
• Working knowledge of standard Windows security methodologies, hardening procedures, and best practices
• Excellent communication & documentation skills, both in technical and non-technical areas
• Ability to work with a global support team, including ticket management applications such as Jira and ServiceNow
• Hands-on experience with the VMWare environment and general principles of virtualisation
• Hands-on experience with Cloud computing, especially Google Cloud Platform
• Familiarity with backup needs and approaches
• Ability and willingness for on-call and after-hours work
• Ability to prioritise and work well under pressure

What you’ll do

• Hands-on operational activities:
• Install, configure, test and maintain client and server systems, application software, server applications and system management tools
• Install and upgrade infrastructure systems and processes
• Manage and monitor all installed systems and infrastructure, including hybrid environments.
• Proactively ensure the highest level of systems and infrastructure availability
• Provide technical support for both hardware and software issues
• Contribute to technical decision‑making, offering pragmatic input that balances best practice with business realities
• Participate in on‑call rotations and after‑hours support, taking responsibility for service restoration and clear communication during incidents
• Lead or contribute to post‑incident reviews with a focus on prevention, system resilience, and service improvement
• Participate in scheduled patching and maintenance activities, including coordination, execution, validation, and post‑maintenance support
• Cloud and virtualisation:
• Administer and support GCP services, including Compute Engine, Cloud IAM, and other relevant services
• Optimise VMware environments to ensure efficient resource utilisation and system availability
• Support and evolve hybrid infrastructure leveraging Google Cloud Platform, contributing to cloud adoption, migration, or optimisation initiatives
• Automation:
• Develop and maintain PowerShell and batch scripts to automate repetitive administrative tasks, reduce manual effort, and improve system consistency
• Identify opportunities to streamline operational processes through automation, documentation, and tooling improvements
• Contribute to the evolution of infrastructure standards, runbooks, and operational best practices

About the position

As the Senior Windows Administrator, you will be a part of a global team responsible for the management and monitoring of a large number of Windows systems in all regions of the world. Core functions for this role include management of server and storage systems, issue resolution, patching, management of new installations, upgrades, and migrations. This role includes responsibilities for interacting with internal customers at ISS STOXX.

Benefits

• At ISS STOXX, our people are our driving force. We are committed to building a culture that values diverse skills, perspectives, and experiences. We hire the best talent in our industry and empower them with the resources, support, and opportunities to grow—professionally and personally.
• Together, we foster an environment that fuels creativity, drives innovation, and shapes our future success.
• Let’s empower, collaborate, and inspire.
• Let’s be #BrilliantTogether.