Senior Security Engineer & AI Security Architect

Ohme; Greater London; Híbrido; GBP 120.000 - 160.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Hybrid working

Direct CIO access

Career progression

Comprehensive benefits

Tooling funded

Descripción de la vacante

Ohme seeks a Lead Security Engineer to join its technology leadership in London. You will be the senior security authority, building and operating controls with engineering and DevOps, reporting to the CIO.

You’ll establish a coherent security architecture and drive risk governance across the business. As part of a scale-up, you will shape security strategy, incident response, and AI security governance, with direct access to CIO and opportunity for progression.

Formación

• Senior-level security engineer with hands-on experience building and operating security controls.
• Hands-on experience configuring and tuning Microsoft Sentinel (SIEM).
• Deep expertise in AWS security services (IAM, Security Hub, GuardDuty).
• Solid knowledge of the Microsoft security stack (Defender for Endpoint, Defender for Office 365, Entra ID).
• Experience with CI/CD security: SAST/DAST, container security, and IaC security.
• Strong governance knowledge with ISO 27001 and risk management.
• Excellent communication to translate risk for technical and non-technical audiences.
• Bias toward action and capability to operate as a senior individual contributor.

Responsabilidades

• Own and actively maintain the organisation's security architecture across cloud, application, network, and data security.
• Embed security into CI/CD pipelines — defining requirements for SAST/DAST tooling, container security scanning, secrets detection, and IaC checks.
• Lead security reviews for new projects and third-party integrations with proportionate risk-based judgement.
• Own the security monitoring layer: Sentinel, GuardDuty, CloudTrail, Config — triage and drive to resolution.
• Define standards for identity, encryption, and network segmentation; review what gets built.
• Define and run incident response capabilities from detection to post-incident review.

Conocimientos

Security architecture

SIEM & detection rules

AWS security

Microsoft security stack

CI/CD security

ISO 27001 governance

Threat modelling

Incident response

Communication

AI security governance

Herramientas

Microsoft Sentinel

AWS IAM

GuardDuty

CloudTrail

Purview

SAST/DAST tooling

IaC security checks

Descripción del empleo

Ohme seeks a Lead Security Engineer to join its technology leadership in London. You will be the senior security authority, building and operating controls with engineering and DevOps, reporting to the CIO.

You’ll establish a coherent security architecture and drive risk governance across the business. As part of a scale-up, you will shape security strategy, incident response, and AI security governance, with direct access to CIO and opportunity for progression.