Security Engineer - SIEM - sought by investment bank based in London - Contract - Hybrid *Inside IR35 - umbrella* Key Responsibilities SIEM Management & Optimization: Design, implement, and maintain MicrosoftSentinel workspaces, connectors, analytics rules, and playbooks Develop advanced KQL queries for threat hunting and reporting Optimize SIEM performance, cost, and data retention policies Troubleshoot log ingestion and parsing issues Log Source Integration … new security tools Help define and measure control effectiveness Required Skills & Experience 3+ years in a Security Engineer, SOC Analyst, or similar role Hands-on experience with MicrosoftSentinel and KQL Strong knowledge of Active Directory, Windows/Linux systems, and cloud platforms (Azure, AWS, GCP) Proficiency in scripting (PowerShell, Python) Familiarity with security frameworks (MITRE More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Salt Search
Cyber Security Lead - Sentinel & Azure | Local Government Rate: £650 per day IR35: Inside IR35 Location: Hybrid - 2 days per week onsite in London Contract: 3 months initially, with strong potential for extension Salt Recruitment's Local Government team is working with a London-based Local Authority to recruit an experienced and hands-on Cyber Security Lead … upcoming projects, embedding security practices, and leading preparations for a Public Services Network (PSN) audit. This is a critical delivery role that requires advanced technical expertise with MicrosoftSentinel and Azure , including automation using Sentinel playbooks . You'll also be expected to mentor internal analysts and drive cross-departmental engagement on cyber posture … compliance, and incident response readiness. Key Responsibilities: Act as the lead for cyber security across multiple projects and programmes Design and implement Sentinel playbooks to automate detection and response Lead on PSN audit readiness and ensure compliance with key frameworks (Cyber Essentials, ISO27001, NIST, GDPR) Conduct cyber risk assessments, maintain the risk register, and drive remediation activity Provide More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Opus Recruitment Solutions Ltd
Senior Security Architect (Azure & SIEM) Location: Remote (occasional travel to London)Contract Duration: 12 MonthsIR35 Status: Outside IR35Day Rate: Up to £750We’re seeking a highly experienced Senior Security Architect with deep expertise in MicrosoftAzure and SIEM technologies to join a leading organisation on a 12-month contract. This is a remote-first role with … occasional travel to London for key meetings.Key Responsibilities: Design and implement secure cloud architectures within MicrosoftAzure Lead the integration and optimisation of SIEM solutions, particularly MicrosoftSentinel Conduct threat modelling, risk assessments, and security architecture reviews Collaborate with engineering, DevOps, and compliance teams to embed security best practices Define and enforce security standards across Azure IaaS, PaaS, and SaaS environments Essential Skills & Experience: Strong background in Azure security architecture Hands-on experience with MicrosoftSentinel or other enterprise SIEM platforms Deep understanding of Azure security services (e.g. Defender for Cloud, Key Vault, Azure AD) Familiarity with Microsoft security frameworks and compliance standards Experience with secure More ❯
be the main escalation point for on-site support staff to resolve 365 issues and administer the clients collaboration platform, Microsoft 365, Including Exchange, One Drive, Teams, Sharepoint, Azure AD and Microsoft Endpoint Manager You will also be the lead in compliance configuration and monitoring and including managing data protection requests. Maintaining and patching of the local M365 …/SCCM/Intunes/AD/Azure environments You must be able to demonstrate current and recent E5 security products knowledge; Defender for Clouds Apps, Defender for Identity, and password protection. Experience of Configuring alerts into Sentinel and AD recovery PCP plan testing. This opportunity offers long term opportunity and requires 2 to 3 days More ❯