Role Description We are still looking for the very Top Talent—and we would be delighted if you were to join our team More in details, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35.000 employees all over the world and presence in more than 35 countries. We are leaders on digital technology services, and we provide large-scale technologic solutions to big companies.

What we look for? We are looking for 3

SOC L1 Analyst

to join our Security Operations Center team in Madrid.

The SOC L1 Analyst will act as the first line of defense, continuously monitoring security s, performing initial investigations, validating potential threats, documenting findings, and escalating confirmed or complex incidents to L2/L3 analysts according to established procedures and SLA requirements.

Availability Candidates must be willing to work in a

24/7 rotational shift environment , including nights, weekends, and holidays.

Key Responsibilities

Monitor security s and events generated by

SIEM, EDR, email security, firewall, cloud security, and other security monitoring platforms .

Perform first-level triage and investigation of security s. Analyze logs and security events to identify potentially malicious or suspicious activity.

Validate s and classify them as true positives, false positives, or requiring further investigation.

Prioritize and elevate confirmed, high-severity, or complex incidents to L2/L3 analysts according to defined escalation procedures.

Create, update, and manage incident tickets, including accurate investigation notes, evidence, findings, and actions taken.

Follow established





SOPs, runbooks, playbooks, and incident response procedures .

Perform IOC lookups using approved internal and external threat intelligence sources.

Review and correlate events from multiple sources, including endpoint, network, identity, email, and authentication logs.

Execute predefined containment or response actions when authorized by established playbooks.

Ensure s and incidents are acknowledged, investigated, and escalated within established SLA timelines.

Participate in shift handovers and ensure the smooth transition of active cases to the next team.

Report monitoring gaps, tool issues, procedural inconsistencies, and recurring false-positive s to senior analysts or the team lead.

Support the preparation of operational reports, incident summaries, and customer review documentation.

Clearly communicate incident status and investigation findings to internal teams and relevant stakeholders.

Work effectively in a

24/7 shift-based SOC environment .

Minimum Requirements Good understanding of cybersecurity principles, security monitoring, and incident response.

Knowledge of common cyber threats, including:

Phishing

Malware and ransomware

Brute-force attacks

Unauthorized access

Suspicious authentication activity

Web-based attacks





Understanding of networking concepts, including:

TCP/IP

DNS

HTTP/HTTPS

Ports and protocols

VPNs

Firewalls and proxies

Familiarity with Windows and Linux operating systems.

Knowledge of endpoint, network, email, identity, and cloud security.

Ability to interpret logs and correlate events from multiple security data sources.

Understanding of the security incident lifecycle, including detection, triage, documentation, escalation, and closure.

Awareness of the Cyber Kill Chain and MITRE ATT&CK; framework.

Familiarity with ticketing systems and IT service management processes.

Security Tools Hands‑on experience or working knowledge of one or more of the following would be highly valuable:

SIEM Platforms

Microsoft Sentinel

Splunk

IBM QRadar

Google Chronicle

EDR & Endpoint Security Platforms

Microsoft Defender for Endpoint

CrowdStrike Falcon

SentinelOne

VMware Carbon Black

Trend Micro Vision One

Education & Experience

Bachelor’s degree in Cybersecurity, Computer Science, Information Technology, Electronics, or a related field.

1–2 years of professional SOC L1 experience.

Candidates should have a professional background specifically focused on Security/SOC.

We are looking for candidates who have built their experience within cybersecurity rather than professionals who have only recently transitioned into SOC from another technical domain.

Hands‑on experience investigating and triaging SOC s and monitoring customer security queues is required.

English and spanish: C1 level

📌 SOCAnalyst (Madrid)
🏢 Ust
📍 Madrid