Linux System Administrator | On-Call & Preventive Support
Inetum · Lisbon, Portugal
IT Services and IT Consulting · 10,001+ employees
About the role
The Linux System Administrator will manage, maintain, and monitor critical Linux-based production environments to ensure high availability and performance. They will also participate in on-call rotations, perform preventive maintenance, and develop automation scripts to optimize infrastructure operations.
What they look for
Requirements
Candidates must have at least 5 years of experience in system administration, with strong proficiency in Linux and SQL databases. A solid understanding of ITIL processes, scripting languages like Python or Bash, and excellent communication skills are required.
Full description
Company Description
Inetum is a European leader in digital services, supporting organizations as they navigate continuous technological change. The company helps clients accelerate their digital transformation through a broad portfolio that includes consulting, application services, digital engineering, cloud, cybersecurity, platforms, and infrastructure services
Job Description
We are looking for an experienced Linux System Administrator to join a team responsible for the operation, maintenance, and continuous improvement of critical infrastructure environments. The successful candidate will play a key role in ensuring system availability, stability, and performance while participating in preventive maintenance activities and an on-call support rotation.
Key Responsibilities
- Administer, maintain, and support Linux-based production environments.
- Monitor system performance, availability, and capacity, proactively identifying potential issues.
- Investigate and resolve incidents, service requests, and infrastructure-related problems.
- Participate in preventive maintenance activities to ensure service reliability and operational excellence.
- Take part in an on-call rotation and provide support outside business hours when required.
- Manage and support database environments, preferably SQL-based.
- Develop and maintain scripts to automate operational and administrative tasks.
- Collaborate with infrastructure, application, and support teams to deliver stable and scalable solutions.
- Follow IT Service Management processes and best practices aligned with ITIL.
- Contribute to cloud, automation, and infrastructure optimization initiatives.
Qualifications
- 5+ years of experience in System Administration or Infrastructure Operations.
- Strong hands-on experience with Linux system administration.
- Solid knowledge of infrastructure operations and system support.
- Experience working with SQL databases.
- Understanding of ITIL processes and service management best practices.
- Knowledge of scripting for automation and task optimization, technologies such as Shell/Bash and Python.
- English proficiency at C1 level (written and spoken).
- Availability to participate in on-call and preventive support rotations.
- Strong communication and interpersonal skills.
Nice to Have
- Experience with Dynatrace.
- Knowledge of DevOps practices and methodologies.
- Experience with Ansible.
- Experience working with Cloud platforms (AWS, Azure, or Google Cloud).
- Familiarity with Infrastructure as Code (IaC) concepts and automation frameworks.
Soft Skills
- Strong problem-solving and analytical skills.
- Proactive attitude and ownership mindset.
- Ability to work independently and as part of a team.
- Excellent organizational and prioritization skills.
- Customer-oriented approach.
- Strong communication and stakeholder management abilities.
- Adaptability and willingness to learn new technologies.
Additional Information
Location / Work Model
- Lisbon, Portugal - Hybrid work model
- This position includes participation in an on-call support rotation and preventive maintenance activities.
- The role offers the opportunity to work in a challenging and dynamic environment, supporting critical systems and contributing to automation and cloud transformation initiatives.
