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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