Cyber Security Analyst – CSOC Analysis

Bloomberg; Dublin; On-site; EUR 55,000 - 75,000; Full time

Job summary

Bloomberg is hiring a Cyber Security Analyst – Analysis to support a global, 24x7 CSOC. This role focuses on front‑line security event analysis and decision‑making, acting as the initial responder to alerts while independently resolving security events using playbooks and sound professional judgment.

This position is well‑suited for analysts who enjoy hands‑on investigation, and know when and how to escalate issues with clear context.

Qualifications

• Minimum 1 year of experience in Security Operations, SOC, CSOC, or security analysis.
• Strong proficiency in log analysis across multiple data sources (SIEM experience required; Splunk preferred).
• Solid understanding of enterprise networking concepts and the TCP/IP stack.
• Familiarity with security technologies such as EDR, antivirus, firewalls, VPNs, and identity systems.
• Ability to follow playbooks while adapting when procedures are incomplete.
• Clear written and verbal communication skills and a professional, customer‑focused approach.

Responsibilities

• Act as the initial responder to security alerts across enterprise systems, endpoints, networks, and cloud environments.
• Perform event analysis using documented playbooks, runbooks, and procedures.
• Validate alerts, identify false positives, and assess severity, scope, and business impact.
• Conduct initial investigation and provide contextual analysis to support decision‑making.
• Independently resolve and close security events, escalating as needed with context.
• Escalate confirmed or high‑risk incidents with clear, actionable case notes.
• Analyze logs and telemetry from multiple sources, including SIEM, endpoints, networks, and cloud platforms.
• Collaborate with internal technical and business teams to support remediation.
• Maintain high‑quality documentation and shift handovers.

Skills

Security Operations

Log Analysis

SIEM (Splunk)

Enterprise Networking

Windows

Linux

macOS

Threat Analysis

Documentation

Communication

Education

Degree in Information Security / CS

Security Certifications

Tools

Splunk

EDR

Firewalls

VPNs

Identity Systems

Job description

Description & Requirements

The energy of a newsroom, the pace of a trading floor, the buzz of a recent tech breakthrough; we work hard, and we work fast, while keeping up the quality and accuracy we are known for. It is what keeps us inventing and reinventing, all the time. Our culture is wide open, just like our spaces. We bring out the best in each other through collaboration. Through our countless volunteer projects, we also help network with the communities around us. You can do amazing work here. Work you could not do anywhere else. It is up to you to make it happen.

Location
Dublin
Business Area
Legal, Compliance, and Risk
Ref #
10052389

About The Role

We are hiring a Cyber Security Analyst – Analysis to support a global, 24x7 Cyber Security Operations Center (CSOC). This role focuses on front‑line security event analysis and decision‑making, acting as the initial responder to alerts while independently resolving security events using established playbooks and sound professional judgment.

This position is well‑suited for analysts who enjoy hands‑on investigation, can confidently move beyond basic alert review, and know when and how to elevate issues with clear context. The role does not require full incident response ownership but plays a critical role in determining what requires deeper investigation and escalation.

What You Will Do

• Act as the initial responder to security alerts and events across enterprise systems, endpoints, networks, and cloud environments
• Perform event analysis and analysis using documented playbooks, runbooks, and standard operating procedures
• Apply experience‑based judgment when alerts are unclear, incomplete, or fall outside existing procedures
• Validate alerts, identify false positives, and assess severity, scope, and potential business impact
• Conduct initial investigation and contextual analysis to support accurate decision‑making
• Independently resolve and close security events, requesting assistance as needed
• Escalate confirmed or high‑risk incidents with clear, detailed, and actionable case notes
• Analyze logs and telemetry from multiple sources, including SIEM, endpoint, network, identity, and cloud platforms
• Collaborate with internal technical and business teams to support remediation and resolution
• Maintain high‑quality documentation, including investigation notes and shift handovers
• Contribute feedback to improve detection logic, playbooks, and analysis workflows
• Stay current on emerging cyber threats, attacker techniques, and defensive best practices

Required Experience & Skills

• Experience in a Security Operations, SOC, CSOC, or security analysis role
  • Minimum 1 year of experience
• Strong proficiency in log analysis across multiple data sources (SIEM experience required; Splunk preferred)
• Solid understanding of:
  • Enterprise networking concepts and the TCP/IP stack
  • Endpoint and network security controls
  • Windows, Linux, and macOS operating systems
• Familiarity with security technologies such as EDR, antivirus, firewalls, VPNs, and identity systems
• Ability to follow playbooks while adapting confidently when procedures are incomplete or unavailable
• Comfortable working independently, prioritizing alerts, and making escalation decisions
• Clear written and verbal communication skills, particularly for investigation documentation
• A professional, customer‑focused approach when working with internal stakeholders

Preferred Qualifications

• Experience working in a 24x7 SOC or CSOC environment
• Exposure to cloud platforms such as AWS, Azure, or GCP
• Experience with event correlation, enrichment, or alert tuning
• Familiarity with scripting or automation (e.g., Python, PowerShell, Bash)
• Relevant security certifications (e.g., Security+, GCIH, GCED, or similar)
• Degree or formal training in information security, computer science, or a related field

If indicated, please note that years of experience are a guide; we will consider applications from all candidates who can demonstrate the skills necessary for the role.

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