Systems Operator

We're fast learners, hard workers, natural collaborators... and we Make Modern Happen!

Our ambition is to unlock the potential of our digital world so that organisations everywhere can innovate and thrive securely.

We aim to achieve this goal by bringing together the world’s most talented people and the most powerful technologies, combining them to address our customers' challenges and to build something stronger together.

If you share our vision, join us!

Right now, we are looking for a Systems Operator to integrate our internal team, based in Lisbon.

Your responsibilities include:

• Install, configure, maintain, and upgrade virtual servers across Linux and Windows Server environments, ensuring system stability, service availability, and compliance with patching and security standards;
  
• Manage user accounts, groups, permissions, and access policies through identity and access management solutions, including Active Directory;
  
• Monitor system health and performance, including CPU, memory, storage, network connectivity, logs, service availability, and response times, using monitoring and alerting tools;
  
• Implement, maintain, and regularly test backup and disaster recovery procedures to ensure the protection and recoverability of critical business data;
  
• Troubleshoot and resolve infrastructure, authentication, networking, permissions, and application-related issues through log analysis, event correlation, root-cause investigation, and corrective actions;
  
• Provide second-line technical support by managing incidents and service requests, prioritizing workloads, meeting SLAs, and ensuring timely resolution or escalation when required;
  
• Create, maintain, and improve technical documentation, including operational procedures, runbooks, disaster recovery plans, system configurations, and change records;
  
• Assess the impact of infrastructure changes, communicate risks and dependencies, and execute updates and changes following established change management processes;
  
• Collaborate with cross-functional teams to ensure the reliability, security, and continuous improvement of the IT infrastructure and services.
  

You must have:

• High school diploma or currently pursuing a degree in Computer Science, Systems Engineering, Information Technology, or a related field;
  
• 1–2 years of experience in systems support, infrastructure operations, or a similar technical role;
  
• Practical experience with Linux distributions (Ubuntu, RHEL, CentOS) and Windows Server environments (2016, 2019, and/or 2022);
  
• Experience administering Active Directory, including user and group management, permissions, and Group Policy Objects (GPOs);
  
• Familiarity with monitoring and alerting tools such as Zabbix, Nagios, PRTG, or equivalent solutions;
  
• Experience with backup and recovery technologies, such as Veeam, Acronis, or similar platforms;
  
• Strong troubleshooting skills, with the ability to analyze logs, diagnose incidents, and identify root causes;
  
• Knowledge of ticketing systems and IT service management practices, including ITIL-based processes and tools such as ServiceNow;
  
• Availability to work in a shift-based environment, including 24/7 operations when required;
  
• Strong verbal and written communication skills in Portuguese; proficiency in technical English is considered an asset.
  

We value:

• ITIL Foundation certification (v3 or v4);
  
• Microsoft certification, such as AZ-900, MD-102, or equivalent;
  
• Linux certification, such as LPIC-1 or equivalent;
  
• Experience with virtualization platforms, including VMware and Hyper-V;
  
• Basic scripting and automation skills using PowerShell, Bash, or Python;
  
• Experience working with public cloud platforms such as Microsoft Azure, AWS, or Google Cloud Platform (GCP);
  
• Fundamental networking knowledge, including TCP/IP, DNS, DHCP, and VPN technologies;
  
• Strong sense of ownership and ability to work independently when solving technical issues;
  
• Customer-focused mindset with the ability to manage priorities effectively in high-pressure environments;
  
• Team-oriented attitude with a proactive approach to knowledge sharing and continuous improvement.
  

We offer:

• Regular professional development;
  
• Certification paths resources;
  
• Regular teambuilding programs;
  
• Friendly workplace.
  

Workplace: Lisbon (Hybrid)

Claranet: Make Modern Happen!