Linux System Engineer (Splunk) (Brussels)

Are you a Linux Engineer with hands-on Splunk administration expertise, ready to optimise enterprise infrastructure ? We are looking for an experienced System Engineer – Linux & Splunk to support and maintain enterprise Linux infrastructure and the Splunk platform within a large-scale IT environment. In this role, you will combine Linux system engineering, Splunk administration, monitoring, troubleshooting, and automation to ensure the reliability, security, and performance of critical IT services.

You will be responsible for resolving incidents and service requests, performing root cause analysis, implementing system and platform changes, and continuously improving monitoring and data ingestion capabilities. You will also contribute to automation initiatives, Infrastructure-as-Code practices, and R&D activities to enhance operational efficiency and platform reliability.

Role Linux Infrastructure Management

Administer, maintain, troubleshoot, and optimise Red Hat Enterprise Linux or equivalent environments across physical, virtualised, and containerised infrastructures.

Splunk Administration & Engineering

Configure and maintain Splunk environments, including data onboarding, Universal and Heavy Forwarders, indexes, sourcetypes, parsing, field extractions, dashboards, reports, and alerts.

Incident & Problem Management

Investigate and resolve incidents using Splunk data, system logs, and OS-level diagnostics. Perform root cause analysis and implement long-term corrective actions.

Monitoring & Performance

Monitor platform health, troubleshoot data ingestion and search issues, establish performance baselines, and improve incident detection and resolution times.

Automation & Infrastructure-as-Code

Develop and maintain automation using Ansible, Bash and/or Python. Integrate automation into operational workflows and CI/CD pipelines to reduce manual intervention.

System Lifecycle Management

Manage Linux system provisioning, patching, configuration, updates, and lifecycle activities using enterprise tools such as Red Hat Satellite.

Container & Virtualisation Support

Support containerised workloads using Podman and OCI technologies, as well as VMware-based virtual environments.

Security & Compliance

Ensure systems and services remain secure, compliant, and reliable. Support the integration of security events into monitoring and alerting workflows.

Change & Service Management

Implement changes in accordance with established standards and ITIL-aligned processes, ensuring proper documentation and minimal service disruption.

Continuous Improvement & R&D

Evaluate new Splunk capabilities, apps, add-ons, and integrations; contribute to prototypes and identify opportunities to improve platform performance and operational reliability.

Cross-functional Collaboration

• Work closely with infrastructure, network, security, and application teams to integrate data sources, investigate incidents, and coordinate technical solutions.
• Profile Minimum 4 years of experience in IT operations managing Linux-based infrastructure in large-scale enterprise, governmental, or supranational environments.
• Experience with Red Hat Enterprise Linux (RHEL) or equivalent, including end-to-end system lifecycle management.
• Strong knowledge of system administration, performance tuning, troubleshooting, and OS-level diagnostics.
• Hands-on experience with Red Hat Satellite 6.x for provisioning, patching, and lifecycle management.
• Strong experience with Ansible Automation Platform, including playbooks, roles, and automation workflows.
• Solid scripting skills in Bash and/or Python.
• Familiarity with Infrastructure-as-Code principles, Git-based workflows, and CI/CD pipelines.
• Splunk Administration & Engineering Minimum 2 years of hands-on experience administering and supporting Splunk in production environments .
• Experience onboarding and maintaining data sources using Universal Forwarders, Heavy Forwarders, apps, add-ons, and standard ingestion methods.
• Practical knowledge of Splunk Search Processing Language (SPL) for searches, dashboards, reports, alerts, and field extractions.
• Understanding of indexes, sourcetypes, parsing, data retention, and role-based access control.
• Experience monitoring Splunk platform health and troubleshooting ingestion, search, and performance issues.
• Knowledge of log aggregation, metrics collection, event correlation, anomaly investigation, and monitoring strategies.
• Ability to use Splunk for incident detection, diagnostics, root cause analysis, and reducing mean time to detect and resolve incidents (MTTD/MTTR).
• Infrastructure, Automation & Operations Experience working with ITIL-aligned incident, problem, change, and service request management processes.
• Familiarity with Red Hat container technologies, including Podman and OCI containers.
• Experience with VMware virtualisation environments.
• Understanding of integrating automation with monitoring, remediation, reporting, and operational workflows.
• Practical experience with GitLab, Azure DevOps, or similar version control and DevOps platforms.
• Strong focus on monitoring-driven operations, diagnostics, and technical forensics.
• Additional / Desirable Experience Familiarity with NetApp storage systems.
• Exposure to hardware lifecycle management, including server maintenance, firmware updates, and lifecycle planning.
• Experience with endpoint detection and protection solutions such as Trend Micro Deep Security, ClamAV, or equivalent.
• Understanding of security event integration into monitoring and alerting pipelines.
• Basic operational knowledge of network and security platforms such as Palo Alto, Check Point, F5, and Infoblox.
• Ability to correlate infrastructure, network, and security events to support incident investigation.
• Experience with vendor coordination, technical support processes, and software licensing management.