8 jobs found

SOC / Cyber Threat Detection Analyst - SANS/GIAC Cyber Threat Detection Analyst Location: Wokingham, Berkshire (On-site) Salary: Competitive (dependent on experience) + excellent benefits & training Security Clearance: Ideally SC Cleared or eligible for SC Role Overview As a Cyber Threat Detection Analyst, you will play a hands-on role within an advanced cyber defence function, focused on proactive threat hunting, adversary behaviour analysis, and high-fidelity threat detection across enterprise environments. This role goes beyond reactive alert handling. You will actively hunt for malicious activity using telemetry, SIEM data, and threat intelligence, develop hypotheses based on MITRE ATT&CK Tactics, Techniques, and Procedures (TTPs), and support incident management and response activities when threats are identified. We are open to experienced SOC Analysts where threat hunting, investigations, and proactive detection have formed a significant part of their role, and who are looking to further develop in a more hunting-led environment. This position is well suited to analysts who enjoy thinking like an attacker, have worked alongside or supported red team or purple team activities, and want to deepen their expertise in threat detection and detection engineering. Skills & Experience We're Seeking Experience in threat hunting, cyber threat detection, SOC, blue team, or cyber defence environments, with ideally around five years hands on experience. Strong hands-on experience using SIEM platforms, including: Microsoft Sentinel (KQL) Splunk (SPL) Elastic Security/Kibana (KQL, ESQL) Practical and operational understanding of MITRE ATT&CK, attacker techniques, and adversary tradecraft Experience working with Indicators of Compromise (IOCs) and threat intelligence feeds Solid experience across the security event life cycle, including detection, investigation, and incident management Hands-on experience with EDR/XDR technologies such as Microsoft Defender, CrowdStrike, SentinelOne, or Carbon Black Strong knowledge of networking fundamentals (TCP/IP, DNS, HTTP/S, Firewalls, VPNs, Proxy technologies) Experience analysing telemetry from Windows, Linux, identity, endpoint, and network sources Strong analytical mindset with the ability to clearly communicate findings, impact, and risk Key Responsibilities Conduct proactive threat hunting activities across log, endpoint, and network telemetry to identify suspicious, stealthy, or previously unknown threats Develop and execute hunt hypotheses aligned to MITRE ATT&CK TTPs, adversary behaviours, and emerging threat intelligence Write, refine, and optimise SIEM queries using KQL, SPL, Elastic/ESQL, and Kibana Query Language Perform IOC analysis, enrichment, and validation, integrating internal and external threat intelligence sources Lead investigations from initial detection through scoping, root cause analysis, and impact assessment Support incident management and incident response activities, including containment, remediation, escalation, and lessons learned Collaborate closely with SOC teams, incident responders, red teams, and purple teams to validate detections and improve defensive coverage Contribute to detection logic improvements, use-case development, and continuous enhancement of hunting methodologies Produce clear investigation write-ups, timelines, and recommendations for technical and non-technical stakeholders Security Certifications (Highly Beneficial) SANS/GIAC certifications, including but not limited to: GCIH - Incident Handler GCIA - Intrusion Analyst GCED - Enterprise Defender GCTI - Cyber Threat Intelligence GMON - Continuous Monitoring GDAT - Defending Advanced Threats GCAT - Advanced Threat Intelligence OSCP or equivalent offensive security qualifications Crest certifications, such as: Crest Practitioner Intrusion Analyst (CPIA) Crest Registered Intrusion Analyst (CRIA) Crest Certified Threat Intelligence Analyst (CCTIA) Crest Certified Blue Team Professional (CCBTP) Microsoft SC-200 or related detection and response certifications Other recognised cyber security or threat intelligence credentials

SOC Shift Lead - Watford, UK Up to £75k depending on experience On site 4 days on, 4 days off Must be eligible for DV clearance ABOUT THE CLIENT Our client operates at the forefront of Cyber Security within highly secure and regulated environments across defence and critical infrastructure. They are continuing to invest in their Security Operations capability and are seeking an experienced SOC Shift Lead to play a key role in driving operational excellence and team development. THE BENEFITS Lead a SOC team supporting critical national infrastructure Opportunity to lead and mentor a growing SOC team Exposure to complex, high impact environments Ongoing training and professional development THE SOC SHIFT LEAD ROLE As SOC Shift Lead, you will direct a team of SOC Analysts, taking ownership of monitoring, triage and investigation of security events across critical infrastructure. You will provide hands on technical leadership while also developing team capability and improving detection maturity. You will analyse network traffic, logs and host based events, enhance detection rules aligned to MITRE ATT and threat informed defence, and represent the SOC in partner meetings. This is a hands on leadership role requiring both technical depth and strong people management skills. SOC SHIFT LEAD ESSENTIAL SKILLS Proven experience within a Security Operations Centre Previous line management or team leadership experience Strong hands on experience with Microsoft Sentinel or Splunk Solid understanding of MITRE ATT and threat informed defence Strong networking knowledge including TCP IP, LAN, WAN, SMTP, HTTP, FTP, POP and LDAP Experience investigating host and network based security incidents Eligibility for DV clearance Ability to work on site in Watford on a shift basis TO BE CONSIDERED Please either apply through this advert or email me directly via . For further information please call me on . By applying for this role, you give express consent for us to process and submit, subject to required skills, your application to our client in conjunction with this vacancy only. KEY SKILLS SOC Shift Lead, Security Operations Centre, Microsoft Sentinel, Splunk, MITRE ATT, Incident Response, DV Cleared, NSD

Role: DV-Cleared Cyber Security Analyst / SOC Analyst Salary/Rate: £540-640 per day inside IR35 Location: on site Corsham 5x pw Contract Duration: contract until April 2027 We are currently looking for a Cyber Security Analyst / SOC Analyst for our government client. This Cyber Security Analyst / SOC Analyst role is based fully on site, 5 days per week in Corsham, over 13-hour shifts spanning days and nights, including weekends, 4 on 5 off, then 5 on 4 off. There is no further flexibility with the on-site requirement or office location. Security Clearance: Developed Vetting (DV Clearance) + sole UK national + Sensitive Post Check (which can take 3 months) The contract for this Cyber Security Analyst / SOC Analyst position is until April 2027, with potential to extend, operating inside IR35. This role is inside IR35 - Due to the service of the role, it will now be based on an Umbrella solution. Essential Skills / Experience required: Industry standard SOC Security qualifications (SANS, ISC2, etc.) Proven Tier 2/3 SOC Analyst experience (2 years+) Perform triage of security events ; determine scope, priority and impact, and make recommendations that enable expeditious remediation. Demonstratable experience working with SIEM technology and SIEM engineering (including tool configuration) i.e. ArcSight within an enterprise SOC. Experience in creation of use-cases, analytics and playbooks . An understanding of cloud Conduct real-time management of security incidents from detection to resolution. Technical Knowledge within anti-virus, networking, vulnerability management, encryption, Microsoft technologies, Linux. Knowledge of Information Security standards , legislation and practices, including GDPR & Data Protection Act 2018. Experience in dealing with a wide range of Information Security matters and operating in an ITIL based environment. Strong problem-solving ability, with flexibility to think creatively and adapt to and implement rapidly changing systems and services. Incident management experience and an ability to quickly tailor responses to deal with fast-moving situations. Highly desirable: Degree level qualification; preferably in technical, engineering or computing subject. Lead experience but would take a Tier 2 Analyst. Defence experience Role / Responsibilities: Responsible for supporting information security delivery work, including the development and implementation of Information Security Policies, Standards, processes and guidance. Responsibility for the security of Digital infrastructure by proactively analysing security threats/challenges/risks to the environment, including conducting penetration testing and compliance reviews monitoring of Information Security and information management to ensure compliance including reviewing and monitoring system and network logs for malicious activity or unacceptable use. If you are interested in the above role, please click Apply Now and send a CV for quick review. As a member of the Disability Confident Scheme, Circle and our Client guarantees to interview all candidates who have a disability and who meet all the essential criteria for the vacancy. In cases where we have a high volume of candidates who have a disability who meet all the essential criteria, we will interview the best candidates from within that group. Our client is proud to support the Armed Forces Covenant and as such, they guarantee to interview all veterans, spouses / partners of military personnel who meet all the essential criteria for the vacancy. In cases where they have a high volume of ex-military candidates / military spouses, partners, who meet all of the essential criteria, they will interview the best candidates from within that group. If you qualify, please notify us on igs at circlerecruitment dot com. We will be in touch to discuss your suitability and arrange your guaranteed interview. Should you require reasonable adjustments at any point during the recruitment process, if there is a better way for us to communicate, please do let us know. Circle Recruitment is acting as an Employment Agency in relation to this vacancy. Earn yourself a referral bonus if you refer somebody else who fills the role! We also offer an iPad if you refer a new client to us and we recruit for them. Follow us on Facebook - Circle Recruitment , Twitter and LinkedIn - Circle Recruitment.

Are you a Detection Engineer ready to take on the fight against modern adversaries? Join a well-established SOC working with high-profile Defence clients, where your expertise genuinely matters. In this hands-on technical role, you'll own the end-to-end design, development and maturity of detection logic across SIEM platforms-engineering effective responses to real-world attacker techniques. You'll operate with a high degree of autonomy, acting as a trusted SME across multiple secure environments within a complex MSSP setting. This is a standout opportunity to advance your career at the sharp end of cyber defence. Location: Hybrid working - 2 days per week in our Farnborough office. Security: You must hold or be eligible for SC Clearance. What you'll be doing: ? Design, build, test and continuously refine advanced SIEM detection logic, including rules, correlations and analytics. Research emerging threats, vulnerabilities and adversary TTPs, mapping them to MITRE ATT&CK to close detection and visibility gaps. Tune and validate detections to minimise false positives and deliver high-fidelity alerts for SOC analysts. Act as a technical authority, providing expert guidance to SOC Analysts, Architects and Engineers to strengthen overall detection capability. Define, implement and maintain technical detection standards across environments. Clearly communicate complex technical risks and detection logic to both technical teams and non-technical stakeholders. What you'll bring: Deep SIEM expertise, building advanced detection logic, automation and complex queries in Splunk (SPL) and Microsoft Sentinel (KQL). A proven track record delivering complex detection engineering projects within enterprise or MSSP environments. Strong analytical skills, with the ability to break down sophisticated attacks into actionable detection patterns. Confidence to own technical delivery end-to-end, driving work through to completion with minimal escalation. Expert knowledge of MITRE ATT&CK, with real-world application in detection engineering. A BSc in Computer Science, IT, or a related discipline. Solid scripting skills in Python, PowerShell, or similar, supporting automation and data manipulation. Experience developing detections in QRadar and/or conducting EDR-focused threat hunting (e.g. CrowdStrike, Microsoft Defender for Endpoint). Broad infrastructure awareness across Cloud (Azure/AWS), on-prem, and SaaS / PaaS / IaaS environments. If you are interested in this role but not sure if your skills and experience are exactly what we're looking for, please do apply, we'd love to hear from you! Employment Type: Full-time, Permanent. Location: Hybrid: 2 days per week in Farnborough. Security Clearance Level: SC Cleared or eligible. Internal Recruiter: Jane. Salary: To £65,000. Benefits: 25 days annual leave with the choice to buy additional days, health cash plan, life assurance and pension. Sopra Steria: Our Aerospace, Defence and Security business designs, develops and deploys digital solutions to Central Government clients. The work we do makes a real difference to the client's goal of National Security, and we operate in a unique and privileged environment. We are given time for professional development activities, and we coach and mentor our colleagues, sharing knowledge and learning from each other. We foster a culture in which employees feel valued and supported and have pride in their work for the customer, delivering outstanding rates of customer satisfaction in the UK's most complex safety- and security-critical markets.

SOC / Cyber Threat Detection Analyst - SANS/GIAC Cyber Threat Detection Analyst Location: Wokingham, Berkshire (On-site) Salary: Competitive (dependent on experience) + excellent benefits & training Security Clearance: Ideally SC Cleared or eligible for SC Role Overview As a Cyber Threat Detection Analyst, you will play a hands-on role within an advanced cyber defence function, focused on proactive threat hunting, adversary behaviour analysis, and high-fidelity threat detection across enterprise environments. This role goes beyond reactive alert handling. You will actively hunt for malicious activity using telemetry, SIEM data, and threat intelligence, develop hypotheses based on MITRE ATT&CK Tactics, Techniques, and Procedures (TTPs), and support incident management and response activities when threats are identified. We are open to experienced SOC Analysts where threat hunting, investigations, and proactive detection have formed a significant part of their role, and who are looking to further develop in a more hunting-led environment. This position is well suited to analysts who enjoy thinking like an attacker, have worked alongside or supported red team or purple team activities, and want to deepen their expertise in threat detection and detection engineering. Skills & Experience We're Seeking Experience in threat hunting, cyber threat detection, SOC, blue team, or cyber defence environments, with ideally around five years hands on experience. Strong hands-on experience using SIEM platforms, including: Microsoft Sentinel (KQL) Splunk (SPL) Elastic Security/Kibana (KQL, ESQL) Practical and operational understanding of MITRE ATT&CK, attacker techniques, and adversary tradecraft Experience working with Indicators of Compromise (IOCs) and threat intelligence feeds Solid experience across the security event life cycle, including detection, investigation, and incident management Hands-on experience with EDR/XDR technologies such as Microsoft Defender, CrowdStrike, SentinelOne, or Carbon Black Strong knowledge of networking fundamentals (TCP/IP, DNS, HTTP/S, Firewalls, VPNs, Proxy technologies) Experience analysing telemetry from Windows, Linux, identity, endpoint, and network sources Strong analytical mindset with the ability to clearly communicate findings, impact, and risk Key Responsibilities Conduct proactive threat hunting activities across log, endpoint, and network telemetry to identify suspicious, stealthy, or previously unknown threats Develop and execute hunt hypotheses aligned to MITRE ATT&CK TTPs, adversary behaviours, and emerging threat intelligence Write, refine, and optimise SIEM queries using KQL, SPL, Elastic/ESQL, and Kibana Query Language Perform IOC analysis, enrichment, and validation, integrating internal and external threat intelligence sources Lead investigations from initial detection through scoping, root cause analysis, and impact assessment Support incident management and incident response activities, including containment, remediation, escalation, and lessons learned Collaborate closely with SOC teams, incident responders, red teams, and purple teams to validate detections and improve defensive coverage Contribute to detection logic improvements, use-case development, and continuous enhancement of hunting methodologies Produce clear investigation write-ups, timelines, and recommendations for technical and non-technical stakeholders Security Certifications (Highly Beneficial) SANS/GIAC certifications, including but not limited to: GCIH - Incident Handler GCIA - Intrusion Analyst GCED - Enterprise Defender GCTI - Cyber Threat Intelligence GMON - Continuous Monitoring GDAT - Defending Advanced Threats GCAT - Advanced Threat Intelligence OSCP or equivalent offensive security qualifications Crest certifications, such as: Crest Practitioner Intrusion Analyst (CPIA) Crest Registered Intrusion Analyst (CRIA) Crest Certified Threat Intelligence Analyst (CCTIA) Crest Certified Blue Team Professional (CCBTP) Microsoft SC-200 or related detection and response certifications Other recognised cyber security or threat intelligence credentials

SOC / Cyber Threat Detection Analyst - SANS/GIAC Cyber Threat Detection Analyst Location: Wokingham, Berkshire (On-site) Salary: Competitive (dependent on experience) + excellent benefits & training Security Clearance: Ideally SC Cleared or eligible for SC Role Overview As a Cyber Threat Detection Analyst, you will play a hands-on role within an advanced cyber defence function, focused on proactive threat hunting, adversary behaviour analysis, and high-fidelity threat detection across enterprise environments. This role goes beyond reactive alert handling. You will actively hunt for malicious activity using telemetry, SIEM data, and threat intelligence, develop hypotheses based on MITRE ATT&CK Tactics, Techniques, and Procedures (TTPs), and support incident management and response activities when threats are identified. We are open to experienced SOC Analysts where threat hunting, investigations, and proactive detection have formed a significant part of their role, and who are looking to further develop in a more hunting-led environment. This position is well suited to analysts who enjoy thinking like an attacker, have worked alongside or supported red team or purple team activities, and want to deepen their expertise in threat detection and detection engineering. Skills & Experience We're Seeking Experience in threat hunting, cyber threat detection, SOC, blue team, or cyber defence environments, with ideally around five years hands on experience. Strong hands-on experience using SIEM platforms, including: Microsoft Sentinel (KQL) Splunk (SPL) Elastic Security/Kibana (KQL, ESQL) Practical and operational understanding of MITRE ATT&CK, attacker techniques, and adversary tradecraft Experience working with Indicators of Compromise (IOCs) and threat intelligence feeds Solid experience across the security event life cycle, including detection, investigation, and incident management Hands-on experience with EDR/XDR technologies such as Microsoft Defender, CrowdStrike, SentinelOne, or Carbon Black Strong knowledge of networking fundamentals (TCP/IP, DNS, HTTP/S, Firewalls, VPNs, Proxy technologies) Experience analysing telemetry from Windows, Linux, identity, endpoint, and network sources Strong analytical mindset with the ability to clearly communicate findings, impact, and risk Key Responsibilities Conduct proactive threat hunting activities across log, endpoint, and network telemetry to identify suspicious, stealthy, or previously unknown threats Develop and execute hunt hypotheses aligned to MITRE ATT&CK TTPs, adversary behaviours, and emerging threat intelligence Write, refine, and optimise SIEM queries using KQL, SPL, Elastic/ESQL, and Kibana Query Language Perform IOC analysis, enrichment, and validation, integrating internal and external threat intelligence sources Lead investigations from initial detection through scoping, root cause analysis, and impact assessment Support incident management and incident response activities, including containment, remediation, escalation, and lessons learned Collaborate closely with SOC teams, incident responders, red teams, and purple teams to validate detections and improve defensive coverage Contribute to detection logic improvements, use-case development, and continuous enhancement of hunting methodologies Produce clear investigation write-ups, timelines, and recommendations for technical and non-technical stakeholders Security Certifications (Highly Beneficial) SANS/GIAC certifications, including but not limited to: GCIH - Incident Handler GCIA - Intrusion Analyst GCED - Enterprise Defender GCTI - Cyber Threat Intelligence GMON - Continuous Monitoring GDAT - Defending Advanced Threats GCAT - Advanced Threat Intelligence OSCP or equivalent offensive security qualifications Crest certifications, such as: Crest Practitioner Intrusion Analyst (CPIA) Crest Registered Intrusion Analyst (CRIA) Crest Certified Threat Intelligence Analyst (CCTIA) Crest Certified Blue Team Professional (CCBTP) Microsoft SC-200 or related detection and response certifications Other recognised cyber security or threat intelligence credentials