8 of 8 IT Security Engineer Jobs in the South East

Part Time | M365 IT & Security Support Engineer | £300 - £350 | Outside IR35 | Onsite We’re recruiting an experienced M365 IT & Security Support Engineer to assist our client through a busy transitional period. This 2-month contract is determined as Outside IR35 and offers a daily rate between £300 - £350 per day. This part-time position … days per week) requires onsite attendance in central London on all working days.The successful candidate will work closely with the IT & Security Manager to reduce ticket backlog, coordinate with the MSP and wider business, and deliver hands-on 2nd to 3rd line support across infrastructure, Microsoft services, and security operations. Key Requirements Support IT & Security Manager with hands-on technical troubleshooting tasks Proactively clear backlog of 2nd–3rd line IT support tickets and administrative duties Administer M365 tenant, Entra ID, Exchange, SharePoint, Defender platforms Manage SharePoint permissions, documentation, and 'joiner-leaver-mover' processes Coordinate effectively with MSP and wider business, handle vendor management Roll out security policies, review permissions, and manage user More ❯

IT Security Operations Engineer Introduction: This is a hands-on role protecting critical digital systems that keep passengers moving safely and employees working securely. You’ll join a collaborative IT team where your expertise will directly strengthen the organisation’s cyber resilience and operational reliability. Role Overview: Location: Hybrid (Midlands or Oxfordshire – 3 days in office … Package: £52,000–£58,000 + excellent travel and lifestyle benefits Industry: Transport/Technology/Cyber Security What You’ll Be Doing: Actively monitor, detect, and respond to security threats across IT and operational systems. Manage and optimise key security platforms, including SIEM, XDR, and identity management tools. Implement and review security controls across … internal and external audits to meet frameworks such as Cyber Essentials Plus, ISO 27001, and CIS. Drive improvements in tooling, automation, and incident response processes. Collaborate across departments — from IT teams to engineers — embedding best practice in every area. Mentor colleagues and promote a culture of continual security improvement. Main Skills Needed: Strong background in IT infrastructure More ❯

IT Security Operations Engineer Introduction: This is a hands-on role protecting critical digital systems that keep passengers moving safely and employees working securely. You’ll join a collaborative IT team where your expertise will directly strengthen the organisation’s cyber resilience and operational reliability. Role Overview: Location: Hybrid (Midlands or Oxfordshire – 3 days in office … Package: £52,000–£58,000 + excellent travel and lifestyle benefits Industry: Transport/Technology/Cyber Security What You’ll Be Doing: Actively monitor, detect, and respond to security threats across IT and operational systems. Manage and optimise key security platforms, including SIEM, XDR, and identity management tools. Implement and review security controls across … internal and external audits to meet frameworks such as Cyber Essentials Plus, ISO 27001, and CIS. Drive improvements in tooling, automation, and incident response processes. Collaborate across departments — from IT teams to engineers — embedding best practice in every area. Mentor colleagues and promote a culture of continual security improvement. Main Skills Needed: Strong background in IT infrastructure More ❯

IT Security Operations Engineer Before applying for this role, please read the following information about this opportunity found below. Introduction: This is a hands-on role protecting critical digital systems that keep passengers moving safely and employees working securely. You ll join a collaborative IT team where your expertise will directly strengthen the organisation s cyber … Overview: Location: Hybrid (Midlands or Oxfordshire 3 days in office) Package: £52,000 £58,000 + excellent travel and lifestyle benefits Industry: Transport/Technology/Cyber Security What You ll Be Doing: Actively monitor, detect, and respond to security threats across IT and operational systems. Manage and optimise key security platforms, including SIEM … XDR, and identity management tools. Implement and review security controls across networks, cloud, and infrastructure. Lead vulnerability and patch management activities, ensuring risks are mitigated and compliance maintained. Support internal and external audits to meet frameworks such as Cyber Essentials Plus, ISO 27001, and CIS. Drive improvements in tooling, automation, and incident response processes. Collaborate across departments from IT More ❯

IT Systems & Security Administrator to support and manage a secure MS digital infrastructure environment. This role requires active SC clearance and experience in Microsoft 365 and Azure environments. Outside IR35. London with hybrid working. Key Responsibilities: Administer and configure Microsoft digital infrastructure, including security components. Build, issue, and support IT hardware across Windows, macOS, and iOS. … Triage incidents in Microsoft Defender (Security Center) and Purview. Manage device estate via Intune and Apple Business Manager. Liaise with internal and external stakeholders on IT services and security matters. Review and enhance IT Service Management processes. Essential Skills & Experience: 2+ years in IT support or systems administration (M365 & Azure). Strong knowledge of Microsoft More ❯

a Kerberos expert to lead authentication design, implementation, and troubleshooting across complex enterprise environments. You’ll be the go-to authority on Kerberos — able to explain, demonstrate, and optimise it with clarity and precision. Key Responsibilities Act as the subject matter expert for all Kerberos-related topics. Design, configure, and troubleshoot Kerberos authentication across Windows, Linux, and AD environments. … technical documentation for internal teams and clients. Essential Skills Proven expert-level knowledge of Kerberos (SPNs, delegation, ticketing, cross-realm trust). Strong background in Active Directory, Windows Server security , and Linux Kerberos integration . Confident communicator and presenter , comfortable engaging with customers and technical teams alike. Hands-on experience with authentication troubleshooting tools (Wireshark, klist, setspn, event logs More ❯

a Kerberos expert to lead authentication design, implementation, and troubleshooting across complex enterprise environments. You’ll be the go-to authority on Kerberos — able to explain, demonstrate, and optimise it with clarity and precision. Key Responsibilities Act as the subject matter expert for all Kerberos-related topics. Design, configure, and troubleshoot Kerberos authentication across Windows, Linux, and AD environments. … technical documentation for internal teams and clients. Essential Skills Proven expert-level knowledge of Kerberos (SPNs, delegation, ticketing, cross-realm trust). Strong background in Active Directory, Windows Server security , and Linux Kerberos integration . Confident communicator and presenter , comfortable engaging with customers and technical teams alike. Hands-on experience with authentication troubleshooting tools (Wireshark, klist, setspn, event logs More ❯

a Kerberos expert to lead authentication design, implementation, and troubleshooting across complex enterprise environments. You’ll be the go-to authority on Kerberos — able to explain, demonstrate, and optimise it with clarity and precision. Key Responsibilities Act as the subject matter expert for all Kerberos-related topics. Design, configure, and troubleshoot Kerberos authentication across Windows, Linux, and AD environments. … technical documentation for internal teams and clients. Essential Skills Proven expert-level knowledge of Kerberos (SPNs, delegation, ticketing, cross-realm trust). Strong background in Active Directory, Windows Server security , and Linux Kerberos integration . Confident communicator and presenter , comfortable engaging with customers and technical teams alike. Hands-on experience with authentication troubleshooting tools (Wireshark, klist, setspn, event logs More ❯