Systems Engineer | SOC

Job Location:

Lisbon

Location Flexibility:

Primary Location Only

Req Id:

8127

Posting Start Date:

6/18/26

About The Role

As a Systems Engineer within the Security Operations Center (SOC), you will maintain and secure Linux-based systems in high-availability environments while ensuring stability and performance. You will monitor and troubleshoot infrastructure, manage core services and network components, and support automation and virtualization - working in a fast-paced SOC environment with real impact on critical systems.

Key Responsibilities

Administer and maintain Linux systems (RHEL, Ubuntu, Debian, CentOS) in high-availability environments

Monitor systems (availability, performance, capacity, security) in a SOC/NOC context

Troubleshoot complex issues across OS, network, storage, and applications

Manage core services (SSH, systemd, Nginx, Apache, Tomcat, DNS, DHCP, NFS, etc.)

Configure and maintain:

Network devices (switches)

Firewalls: Check Point and Palo Alto

Implement security best practices (hardening, patching, access control, firewalls)

Manage storage (LVM, RAID, iSCSI, filesystems) and backup lifecycle (execution, validation, recovery)

Automate tasks using Bash, Python, Ansible or similar tools

Support virtualized environments (VMware, Proxmox)

Produce technical documentation (runbooks, procedures, diagrams)

Propose improvements in security, performance, and scalability

What We Are Looking For

Strong experience in Linux administration (enterprise environments)

Experience in NOC/SOC or 24x7 operations

Hands-on experience with:

Networking fundamentals (TCP/IP, DNS, DHCP)

Check Point and Palo Alto firewalls

Virtualization platforms

Scripting/automation skills (Bash, Python, Ansible)

Bonus If You Have

Linux certifications (RHCSA, RHCE, LPIC)

Experience with monitoring tools (Zabbix, Prometheus, Grafana)

Knowledge of Zero Trust security models

Exposure to cloud or container platforms

Work Model

Hybrid model

Regular on-site presence at client offices in Lisbon

Possible on-call / operational support rotation

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