Linux Technical Support Engineer

83zero; Madrid; Híbrido; EUR 52.000 - 76.000; Jornada completa

Descripción de la vacante

83zero Ltd is seeking a Linux Technical Support Engineer in Madrid, Spain, on an 18-month initial contract with a strong extension potential. The role is hybrid and requires deep Linux expertise, cybersecurity knowledge, and excellent troubleshooting and communication skills to support enterprise customers across EMEA.

Training on the SOAR platform (Cortex/XSOAR) will be provided, and experience with Cortex technologies is highly desirable but not essential.

Formación

• Strong Linux troubleshooting and debugging skills.
• Solid cybersecurity background and understanding of security environments.
• Good networking fundamentals and ability to troubleshoot complex issues.
• Experience in enterprise customer support and escalations.
• Fluent English spoken and written for international customers.

Responsabilidades

• Provide advanced Linux technical support to external enterprise customers.
• Investigate and resolve complex issues across Linux OS, applications and networking.
• Manage support cases from initial investigation to resolution within SLAs.
• Diagnose issues using root cause analysis and debugging.
• Troubleshoot configuration and infrastructure-related problems.
• Collaborate with Engineering to resolve escalated issues.

Conocimientos

Linux expertise

Cybersecurity knowledge

Networking fundamentals

Technical support

SOAR (Cortex XSOAR)

English fluency

Herramientas

Cortex XSOAR

Descripción del empleo

Madrid – 18-Month Initial Contract (Strong Chance of Extension)

Location: Madrid, Spain – Hybrid

We are seeking a Linux Technical Support Engineer to join the Technical Support Team in Madrid at a leading global cybersecurity company.

Role Overview:

This is a highly customer-focused technical role, requiring someone with a strong Linux background, cybersecurity knowledge and excellent troubleshooting and communication skills.

You will work directly with enterprise customers across EMEA to investigate and resolve complex technical issues, providing support across Linux-based applications, networking and cybersecurity environments.

This is an initial 18 month Fixed Term Contract with a very strong chance of Extension.

The role will support a leading Security Orchestration, Automation and Response (SOAR) platform. Previous experience with Cortex/XSOAR would be highly desirable but is not essential, as comprehensive training will be provided during a structured onboarding programme.

Key Responsibilities:

• Provide advanced Linux technical support and troubleshooting to external enterprise customers.
• Investigate and resolve complex technical issues across Linux operating systems, applications and networking environments.
• Manage customer support cases from initial investigation through to successful resolution.
• Diagnose technical issues using root cause analysis, debugging and fault isolation techniques.
• Troubleshoot application, configuration and infrastructure-related issues.
• Work closely with Engineering and other technical teams to investigate and resolve escalated issues.
• Ensure customer cases are accurately documented, tracked and progressed within agreed SLAs.

Qualifications & Experience:

• 3+ years of experience in technical support, ideally within a cybersecurity or enterprise technology environment.
• Strong hands-on Linux experience, including troubleshooting, debugging and supporting Linux-based applications.
• Previous experience working within cybersecurity, with an understanding of security technologies and environments.
• Strong networking fundamentals and experience troubleshooting complex technical issues.
• Experience supporting external enterprise customers, ideally in a senior support or escalations role.
• Fluent English language skills are essential, both written and verbal, to support international customers.
• Previous experience with Cortex XSOAR, SOAR platforms or other Cortex technologies would be highly desirable but is not essential, as full product training will be provided during onboarding.
• Excellent communication skills and a genuine interest in cybersecurity.