Principal SOC Analyst

• In this role, you will act as a Level 3 escalation point within the MDR/SOC function, providing advanced technical support to Level 2 analysts during complex or high-severity investigations. You will be expected to bring deep operational knowledge across modern security technologies, including SIEM, EDR, Network Intrusion Detection Systems, SOAR, DLP and related security monitoring platforms
• The Principal SOC Analyst will support the investigation, containment and remediation of advanced threats, ensuring that incidents are analysed in the correct business and technical context. The role requires strong hands-on experience in security operations, incident response, threat analysis and detection tuning, as well as the ability to work directly with customers and internal stakeholders to improve detection capability and strengthen cyber security posture
• You will contribute to the continuous improvement of the MDR service by supporting the definition of security monitoring strategies, improving detection logic, tuning security technologies, reviewing investigation processes and advising customers on technical optimisation opportunities. A strong understanding of malware behaviour, adversary tactics, techniques and procedures, and emerging threats will be critical to success
• This role contributes to the development of Operational Technology (OT) security monitoring and incident response capabilities, as part of the integration of industrial environments into our Global SOC model
• Act as the Level 3 escalation point for advanced, complex or high-impact security investigations
• Support Level 2 analysts during complex investigations, providing technical guidance, validation and direction
• Perform in-depth analysis of security events, alerts, logs, endpoint telemetry, network traffic and other relevant data sources
• Lead advanced incident investigations, including scoping, containment, eradication and remediation recommendations
• Analyse malicious activity, suspicious files, attacker behaviour and adversary TTPs
• Support customers from a technical perspective in the optimisation, tuning and improvement of their security monitoring capabilities
• Review and improve SIEM, EDR, NIDS, SOAR and other security tool configurations to reduce false positives and improve detection quality
• Contribute to the development and refinement of detection use cases, correlation rules, alerting logic and investigation playbooks
• Support the definition of customer security monitoring strategies based on risk profile, threat landscape and available telemetry
• Provide technical recommendations to strengthen customer cyber security posture and improve resilience against current and emerging threats
• Conduct threat hunting and proactive analysis based on indicators, behaviours, intelligence and attack patterns
• Document investigation findings, evidence, timelines, containment actions and remediation recommendations in a clear and structured manner
• Prepare and deliver technical reports to customers, partners and internal stakeholders
• Monitor trusted sources for emerging threats, vulnerabilities and adversary activity relevant to customer environments
• Contribute to the continuous improvement of SOC processes, procedures, documentation and knowledge base material
• Support mentoring and technical development of Level 1 and Level 2 analysts where required
• Lead and support investigations involving Operational Technology (OT) / Industrial Control Systems environments, including IT/OT convergence scenarios
• Analyse security events related to industrial assets and protocols (e.g. SCADA systems, DCS, PLCs, HMIs)
• Support incident response activities, in close collaboration with the Group Incident Response Team for complex security incidents, including those impacting IT and OT environments (scoping, containment, eradication and post-incident analysis)
• Contribute to the development and fine-tuning of OT-specific detection use cases, monitoring strategies and incident response playbooks
• Collaborate closely with the Group’s OT Security Practice, leveraging industrial expertise to enhance SOC monitoring, detection and response capabilities

Benefits

• Flexible Working Arrangements
• Career Development Opportunties
• Health Insurance
• Pension
• Large Training & Upskilling Budget

Experience with OT security platforms or NDR (e.g. Armis, Nozomi, Clarity, Dragos, Darktrace) is a plus

Understanding of IT/OT convergence challenges and network segmentation practices (e.g. IEC 62443)Experience with cloud security monitoring across Microsoft Azure, AWS or Google Cloud is beneficial

Experience supporting industrial or critical infrastructure environments is a plus

Strong experience with security event triage, correlation, investigation and escalation

Minimum 2–3 years of experience in a SOC, MDR, incident response, CSIRT or cyber security operations role

Experience supporting customer-facing technical discussions, including investigation reviews, tuning recommendations and posture improvement activities

Working knowledge of SIEM, EDR, SOAR, NIDS, DLP and threat intelligence platforms

Knowledge of OT threat landscape and frameworks (e.g. MITRE ATT&CK for

ICS)

Ability to produce clear technical documentation, investigation reports and customer-facing recommendations

Strong understanding of incident response lifecycle, including preparation, identification, containment, eradication, recovery and lessons learned

Strong understanding of attacker tactics, techniques and procedures, including MITRE ATT&CKExperience supporting customers or internal stakeholders with security optimization, detection tuning and cyber security posture improvement

Understanding of OT / ICsevironments (SCADA, DCS, PLCs, HMIs, industrial networks)

Ability to perform host-based and network-based threat analysis

Deep operational knowledge of SIEM, EDR, Network Intrusion Detection Systems, SOAR, DLP and related security monitoring technologies

Strong understanding of enterprise network architecture, TCP/IP, firewalls, proxies, VPNs, DNS, email security and cloud environments

Experience analysing packet captures, endpoint artefacts, logs, scripts, documents and potentially malicious files

Experience with Microsoft Sentinel, Microsoft Defender, Splunk, QRadar, Crowd

Strike, Sentinel

One, Palo Alto, Suricata, Zeek, Snort or similar technologies is highly beneficial

Strong hands-on experience in Security Operations Centre or MDR environments

Experience with threat hunting, detection engineering or purple team activities is beneficial

Ability to manage multiple complex incidents and make effective decisions under pressure

Experience working with threat hunting methodologies and security detection frameworks

Strong written and verbal communication skills, with the ability to explain technical findings to both technical and non-technical stakeholders

Proven experience handling complex security incidents and supporting advanced investigations

Experience with SIEM query languages and detection logic, such as KQL, SPL, Sigma or equivalent

Familiarity with industrial protocols (e.g. Modbus, OPC, IEC 104, DNP3) is beneficial

Understanding of security protocols, encryption technologies and common authentication mechanisms

Experience tuning security controls and detection content to improve alert fidelity and reduce false positives

Security industry certifications such as GCIH, GCFA, GCIA, GNFA, GCTI, GSEC, CISSP, Cy

SA+, SC-200, AZ-500 or equivalent are highly beneficial

OT-related certifications or training (e.g. GICSP, GRID, IEC 62443) are advantageous #J-18808-Ljbffr