6 of 6 Remote Security Posture Jobs in the Thames Valley

Security Architect (Network Security) Location -Warwick/Wokingham/Hybrid About the Role We are seeking an experienced Security Architect (Network Security) to design, implement, and maintain enterprise-grade network security solutions. This role will play a critical part in safeguarding infrastructure, ensuring compliance with global standards, and driving a proactive security posture across the organization. You will work closely with cross-functional IT teams, influence security strategy, and provide expert guidance on best practices in a highly regulated environment. Key Responsibilities Design, architect, and maintain network security infrastructure including Firewalls, IDPS, Proxies, Load Balancers, VPNs, and WAFs. Develop and manage firewall policies, network access controls, IAM solutions, MFA, RBAC … and privilege management . Ensure alignment of security measures with compliance standards (GDPR, HIPAA, PCI DSS). Conduct regular security audits and assessments to identify and remediate risks. Apply industry frameworks such as NIST Cybersecurity Framework, ISO 27001, CIS Controls . Oversee and enhance security technologies: SIEM, vulnerability management, cloud security (OCI/Azure/AWS More ❯

Senior Application Security Engineer Location: Hybrid working or homeworking with view to attend office occasionally Salary: £60,000 – £70,000 per annum Bonus: Discretionary bonus of up to 10% Are you passionate about securing modern applications and cloud environments? We’re looking for a Senior Application Security Engineer to join my client's growing team and play a … key role in shaping the security posture of our organisation. About the Role As a Senior Application Security Engineer, you’ll bring deep expertise in application security testing, cloud security, and secure development practices. You’ll work closely with IT, development, and project teams to embed security into every stage of the software development … lifecycle and drive a risk-based approach to vulnerability management. Key Responsibilities Lead application security initiatives across cloud-native and enterprise environments. Promote secure design principles, threat modelling, and best practices across teams. Own and evolve the technical vulnerability management programme. Implement and support security controls, particularly within Azure cloud environments. Evaluate and deploy best-in-class application More ❯

24th November 2025 There is an expectations to travel to different Chiltern sites outside of your base location to support wider colleagues and attend meetings. Job Purpose The IT Security Operations Engineer is responsible for protecting the digital services that support a safe and reliable journey for our passengers and a secure working environment for our staff. This is … a hands-on role focused on strengthening our security posture through technical expertise and cross-departmental collaboration. You will report into the IT Information Security Manager with expected collaboration with the wider IT Team management, representing Digital, Data and Technology (DDaT). Key purposes of this role include: Safeguarding Operations: Actively manage and enhance our security platforms (primarily SIEM, XDR and IDAM polices) to detect, prevent, and respond to cyber threats across our IT and operational networks. Implementing and reviewing Security Controls: Serve as the subject matter expert for implementing technical security controls on applications, networks, and infrastructure to mitigate risk. Fostering Collaboration: Work closely with a wide range of internal teams, from More ❯

24th November 2025 There is an expectations to travel to different Chiltern sites outside of your base location to support wider colleagues and attend meetings. Job Purpose The IT Security Operations Engineer is responsible for protecting the digital services that support a safe and reliable journey for our passengers and a secure working environment for our staff. This is … a hands-on role focused on strengthening our security posture through technical expertise and cross-departmental collaboration. You will report into the IT Information Security Manager with expected collaboration with the wider IT Team management, representing Digital, Data and Technology (DDaT). Key purposes of this role include: Safeguarding Operations: Actively manage and enhance our security platforms (primarily SIEM, XDR and IDAM polices) to detect, prevent, and respond to cyber threats across our IT and operational networks. Implementing and reviewing Security Controls: Serve as the subject matter expert for implementing technical security controls on applications, networks, and infrastructure to mitigate risk. Fostering Collaboration: Work closely with a wide range of internal teams, from More ❯

SC clearance required ABOUT THE CLIENT: Our client is a well-established technology-driven organisation with a strong focus on advancing its cybersecurity capabilities. You will join a dedicated security team working to enhance threat detection and response across complex environments. This is a crucial role for an experienced SIEM Engineer to make a measurable impact by improving resilience … and operational security. THE BENEFITS: Up to £500 per day (Inside IR35) Hybrid working arrangement Collaborative and innovative security culture Opportunity to work with leading SIEM and EDR technologies THE SIEM ENGINEER ROLE: As a SIEM Engineer, you will design, deploy, and maintain SIEM and EDR solutions that strengthen the organisation’s security posture. You will work closely … with IT and security teams to manage log ingestion, implement integrations, and monitor system activity for potential threats. SIEM ENGINEER ESSENTIAL SKILLS: Proven experience with SIEM deployment and management (Sentinel, Elastic, or similar) Strong knowledge of EDR tools (Tanium, Trellix, FireEye, Defender, Elastic EDR) Experience with syslog servers and log feed configuration Ability to create and deploy integrations for More ❯

SC clearance required ABOUT THE CLIENT: Our client is a well-established technology-driven organisation with a strong focus on advancing its cybersecurity capabilities. You will join a dedicated security team working to enhance threat detection and response across complex environments. This is a crucial role for an experienced SIEM Engineer to make a measurable impact by improving resilience … and operational security. THE BENEFITS: Up to £410 per day (Inside IR35) Hybrid working arrangement Collaborative and innovative security culture Opportunity to work with leading SIEM and EDR technologies THE SIEM ENGINEER ROLE: As a SIEM Engineer, you will design, deploy, and maintain SIEM and EDR solutions that strengthen the organisation's security posture. You will work closely … with IT and security teams to manage log ingestion, implement integrations, and monitor system activity for potential threats. SIEM ENGINEER ESSENTIAL SKILLS: Proven experience with SIEM deployment and management (Sentinel, Elastic, or similar) Strong knowledge of EDR tools (Tanium, Trellix, FireEye, Defender, Elastic EDR) Experience with syslog servers and log feed configuration Ability to create and deploy integrations for More ❯