We are looking for a skilled Infrastructure Administrator to manage, support, and optimize IT systems across Linux and Windows environments. You will be responsible for ensuring system stability, performance, and security while providing technical support to users and internal teams. Key responsibilities Install, configure, and maintain Linux and Windows Servers Monitor and ensure availability, performance, and reliability of IT infrastructure [IT Operator | Word] Provide L21l2 support, troubleshoot incidents, and resolve technical issues efficiently [Administra...ing Infra | PDF] Manage user accounts, access rights, and Active Directory environments [IT Operator | Word] Administer and support virtualized environments (VMware, Hyper-V, or similar) [Administra...ing Infra | PDF] Perform system patching, upgrades, and maintenance to ensure security compliance [Note jobs | OneNote] Monitor systems using tools such as Nagios, Grafana, or similar [Administra...ing Infra | PDF] Handle incident management, problem resolution, and change requests (ITIL processes) [Administra...ing Infra | PDF] Maintain and update technical documentation and procedures [IT Operator | Word] Ensure backup and recovery processes are in place and tested [Administra...ing Infra | PDF] Required skills & experience Proven experience as System / Infrastructure Administrator Strong expertise in: Linux (RedHat, CentOS, Ubuntu) Windows Server environments Knowledge of: Virtualization (VMware, Hyper-V, Proxmox) Active Directory, GPO Monitoring tools (Nagios, Zabbix, Grafana) Experience in network basics (LAN/WAN, TCP/IP, DNS, Firewalls) Familiarity with backup solutions and Storage systems (SAN/NAS) [IT Operator | Word] Scripting skills (Bash, PowerShell) are a plus [Administra...ing Infra | PDF] Good understanding of ITIL processes (incident, change, problem management) As an international IT services company, Halian have worked hard for 20 years to understand the issues that keep our customers awake at night and to create the answers that make their lives a little easier. Our mission - the goal that's shared by everybody at every level - is “to deliver the best people and technology services in order to help Halian's customers do more; faster, better, and more cost-effectively than ever before. We're able to do things differently because we think and act differently - the Halian Way is based on rapid service and speedy results, and at its heart lie five key values: Partnership, Respect, Intelligence, Dedication, and Energy. Halian has offices in the UK, Luxembourg, Dubai, and Qatar, and have more than 500 employees all over EMEA. We work with some of the world's most ambitious and dynamic organisations, such as Public and European Institutions, Finance, Oil and Gas, Healthcare and Pharmaceuticals, and partner with industry leading hardware and software vendors. When you join Halian, you will help integrate one of our three service lines: Managed Services, Resourcing Services, or Project Services. You are able to deal with a variety of technologies in critical environments, and make a positive contribution to our customers business. In return, Halian will support the development of your career via different programmes already in place. Halian has built a strategy based on confidence with its customers and partners, and it's these strong links that allow Halian to provide you with job offers not often available on the open job market. Each role is a new challenge to take on!