Senior Security Analyst

Salary: £74,000 - 96,000 per year

Requirements

• Strong experience within a SOC or cyber security operations environment
• Proven ability to investigate and analyse complex security incidents
• Experience with SIEM platforms, threat intelligence, and security tooling
• Strong stakeholder and client communication skills
• Ability to mentor and develop junior team members
• Proactive approach to problem-solving and continuous improvement
• Good understanding of current cyber threats, tactics and trends
• SC clearance

Responsibilities

• Monitor, triage and investigate security alerts across multiple platforms
• Conduct in-depth incident analysis and support ongoing client investigations
• Act as deputy to the SOC Team Lead when required
• Review and assess escalated Tier 2 alerts for urgency and impact
• Deliver weekly and monthly reporting to clients and stakeholders
• Communicate security findings and trends directly to clients
• Support vulnerability management analysis and remediation efforts
• Lead false-positive reduction and SIEM tuning activities
• Mentor and support development of Tier 1 and junior analysts
• Contribute to SOC process improvement and operational efficiency
• Participate in incident response activities as part of the wider team
• Lead internal SOC initiatives and projects where required
• Create and deliver presentations for clients and internal teams

Technologies

• Support
• Network
• Security

More

We are Computer Network Defence Ltd (CND), and we are hiring a Senior Cyber Security Analyst to join our SOC team in Corsham, with a relocation package available for the Isle of Man. This is a key senior role within our MSSP Security Operations Centre, offering the opportunity to take a lead in incident analysis, client engagement, mentoring junior analysts, and shaping the ongoing evolution of our SOC. The role includes a Monday to Friday working pattern, 37.5 hours per week, with an on-call rota and an early Friday finish where workload permits. This is a great opportunity to step into a more visible role within a growing SOC, with real influence over technical delivery and team development.

last updated 25 week of 2026