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Lead Security Consultant @ Trident

Brighton, England, GBOnsiteFull-time
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About this role

Salary: £52,000 - 92,000 per year

Requirements

  • A full UK driving licence
  • Substantial experience in cyber security operations, incident response, threat hunting or security consultancy
  • Demonstrable experience leading complex incidents and coordinating multiple stakeholders
  • Strong experience with SIEM platforms such as Microsoft Sentinel, Splunk, IBM QRadar or ArcSight
  • Practical knowledge of forensic investigation, threat intelligence and evidence-led root-cause analysis
  • Broad technical understanding of Microsoft 365, Azure, Windows Server, identity, networking, firewalls, endpoint security, virtualisation and resilience technologies
  • Ability to explain complex security risks clearly and provide proportionate, commercially aware recommendations
  • Experience within an MSP or multi-client environment is highly desirable
  • PowerShell or Python capability is advantageous
  • A recognised security certification such as CISSP, CISM, GCIH, CompTIA CySA, SC-200, SC-100 or AZ-500 is desirable

Responsibilities

  • Lead complex incident investigations, forensic analysis and root-cause determination
  • Monitor and analyse security events using SIEM platforms, threat intelligence and security tooling
  • Conduct proactive threat hunting and enrich alerts to identify sophisticated threats and indicators of compromise
  • Coordinate containment, eradication, recovery and post-incident review activity across clients, internal teams and third parties
  • Provide clear risk assessments, incident reports and practical security recommendations to technical and non-technical stakeholders
  • Support security governance and compliance requirements, including UK GDPR, ISO 27001 and PCI DSS where applicable
  • Improve SOC processes, playbooks, tooling and reporting
  • Mentor junior security colleagues

Technologies

  • Azure
  • Hardware
  • IBM
  • Support
  • Microsoft 365
  • PowerShell
  • Python
  • Security
  • Splunk
  • Windows
  • Office 365
  • Cloud

More

We are Trident, and we make IT a source of strength, helping organisations thrive so they can better support the people who rely on them. We partner with clients to provide reliable IT services, practical guidance and people-focused support. This is a permanent, full-time, office-based Lead Security Consultant role in central Brighton, with a competitive salary discussed on application. We offer a supportive, collaborative environment that recognises contributions and encourages professional development.

Benefits include 33 days annual leave including bank holidays, increasing by one day per year of service up to 40 days; on-demand IT courses, practice tests and virtual labs; a Bupa Employee Assistance Programme for you and your family; a Cycle to Work scheme; vendor pricing on personal IT hardware and software; the Microsoft Workplace Discount Programme; social spaces, regular events and a Refer-a-Friend bonus scheme.

We welcome applications with an up-to-date CV and review them as they are received. Suitable candidates will be contacted to discuss the role and invited to interview; employment offers are subject to satisfactory pre-employment checks. This role may be advertised under a different title from the one used internally.

last updated 45 week of 2026

Skills

cyber security operationsIncident ResponseThreat Huntingsecurity consultancySIEM platformsMicrosoft SentinelSplunkIBM QRadarArcSightforensic investigationmulti-client environmentPowerShell

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