Security Analyst Tier 1

Kudelski Security; Sabiñán; Presencial; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

Kudelski Security in Spain is seeking a Tier 2 SOC Analyst to act as SME across our security stack, optimize detection workflows, and mentor junior analysts on advanced investigation techniques. You will handle escalated incidents from Tier 1, refine SIEM rules, perform threat hunting, and contribute to continuous improvement across a multinational SOC environment.

Fluent in English with 4+ years in cybersecurity operations and a bachelor’s degree, you will collaborate with global teams to

Formación

• Bachelor's degree in Cybersecurity, Information Technology, Computer Science or equivalent experience.
• Minimum 4 years hands-on cybersecurity operations, incident response, or threat analysis.
• Experience in a SOC and international/global environment.

Responsabilidades

• Provide Tier 2 SOC support and handle escalated incidents from Tier 1.
• Optimize SIEM rules and detection logic to reduce false positives.
• Mentor fellow Security Engineers and Security Analysts and share best practices.
• Deliver high-quality incident handling and investigations and support 24/7 on-call for critical events.

Conocimientos

SIEM proficiency

EDR/XDR experience

Network security

Windows/Linux forensics

Cloud security

Container security

OT/ICS security

Scripting languages

MITRE ATT&CK

English fluency

Educación

Bachelor’s degree in Cybersecurity/IT/CS

Herramientas

Splunk

QRadar

Microsoft Sentinel

Descripción del empleo

Your Mission As a Tier 2 SOC Analyst , you will serve as a subject matter expert in our technology stack while optimizing security tools and detection workflows, mentoring junior analysts on complex investigation techniques, and driving continuous improvement initiatives across our multi-client SOC environment . This role demands advance analytical skills to conduct in-depth analysis of escalated security incidents from Tier 1 analysts , performing advanced threat investigations to determine attack vectors, assess impact scope, and develop comprehensive remediation strategies.

Your responsibilities will be:

1. General responsibilities

• Use AI to support continuous improvement work: refining incident templates, proposing workflow enhancements, and contributing to SOP updates.
• Propose enhancement on tools and workflow
• Respond in a timely manner (within documented SLA) to support tickets.
• Document actions in tickets to effectively communicate information internally and to customers.
• Adhere to policies, procedures, and security best practices.
• Take responsibility for customer satisfaction and overall success of managed services.
• Be available, ready, and able to accept incoming clients calls
• Mentor fellow Security Engineers and Security Analysts.

1. Service improvement

• Optimize SIEM rules and detection logic to reduce false positives and improve detection accuracy Support rules factory program in improving the global set of detection
• Validate Go-to-Active and Go-to-Prod gates of our new clients to ensure a smooth transition to operation
• Continuously improve incident templates in terms of content for the clients and in terms of - automation to best support the operation
• Support rollout of new set of rules for our clients
• Qualify, analyze, and provide recommendations for new standard data source requests
• Support Product teams to build best new services to fit with Operations capabilities (needs, - scalability, efficiency)

1. Threat Monitoring

• Manage escalated cases from T1 Analysts
• Analyze and respond to security events from SIEM, EDR, FWs, IDS, IPS, AV and other security data - sources.
• Use approved AI tools to summarize complex incident timelines and consolidate evidence across sources (SIEM/EDR/network) to speed up escalated investigations.
• Use AI-assisted analysis to identify patterns, likely attack paths, and investigation hypotheses, supporting deeper incident scoping and threat hunting activities.
• Deliver high quality Incident Handling and investigation
• Conduct threat hunting activities using advanced analytics and threat intelligence
• Provide 24/7 on-call support for critical security incidents outside business hours

You are

• A team-player willing to iterate on our internal processes to improve the team’s efficiency
• Experience in international/global environment
• At ease with solving complex problems
• Dynamic, with strong interpersonal and communication skills
• Autonomous, self-taught and transparent
• Able to handle and prioritize parallel tasks with multiple interfaces
• Fluent in English

You have

• Minimum 4 years of hands‑on experience in cybersecurity operations, incident response, or threat analysis, bachelor’s degree in Cybersecurity, Information Technology, Computer Science, or equivalent experience and
• Proven track record in a SOC and international/global environment
• Advanced proficiency with SIEM platforms (Splunk, QRadar, Sentinel, etc.)
• Extensive experience with EDR/XDR solutions (CrowdStrike, SentinelOne, Microsoft Defender, etc.)
• Deep understanding of network security technologies (firewalls, IDS/IPS, network monitoring)
• Strong knowledge of Windows and Linux/Unix operating systems and forensics
• Experience with cloud security (AWS, Azure, GCP) and containerization technologies
• Familiarity with OT/ICS environments and industrial control systems security
• Proficiency in scripting languages (Python, PowerShell, Bash) for automation
• Understanding of threat intelligence platforms and MITRE ATT&CK framework
• Spanish or any other language

Why you’ll love it here

• Immersion in an incredible culture and the vibe of a fast moving and growing organization full of opportunity.
• Opportunity to work with talented peers.
• Creative problem-solving and the ability to tackle unique, complex projects.
• Competitive compensation with a benefits package that protects you and your loved ones and allows you to pursue career growth with tuition reimbursement.
• Generous time off for rest, relaxation, and hobbies.
• Colleagues from across the globe who are interested in helping clients protect their companies so they can focus on fulfilling their mission.

About Kudelski Security

Kudelski Security, a division of the Kudelski Group (SIX: KUD.S), is an innovative, independent Swiss provider of tailored cyber and media security solutions to enterprises and public sector institutions. Our team of security experts delivers end-to-end consulting, technology, managed services, and threat intelligence to help organizations build and run successful security programs. Our global reach and cyber solutions focus is reinforced by key international partnerships. Kudelski Security is headquartered in Phoenix, Arizona and Cheseaux-sur-Lausanne, Switzerland. For more information, please visit: