Security Engineer - Secure-by-Design Platforms (Hybrid)

SEFE Group; Greater London; Hybrid; GBP 65,000 - 95,000; Full time

Job summary

SEFE Group is seeking a Security Engineer to embed secure-by-design principles across its technology landscape. You will work in the Security Platforms & Architecture team, providing hands-on security engineering, guiding secure-by-design practices, and enhancing security platforms to strengthen overall security posture.

You will partner with delivery teams to define security requirements, perform threat modelling, and provide ongoing assurance across governance, readiness, and go-live reviews.

Qualifications

• Proven experience delivering secure-by-design outcomes within complex technology environments.
• Strong understanding of security principles across applications, infrastructure, cloud services, and enterprise platforms.
• Hands-on experience with Microsoft security ecosystem (identity, endpoint, cloud, monitoring, data protection).

Responsibilities

• Partner with programme and project teams to embed secure-by-design principles from inception through to implementation, ensuring security requirements are clearly defined and consistently applied.
• Conduct security design reviews, assess solution architectures, and perform threat modelling activities to identify risks, vulnerabilities, and appropriate mitigation strategies.
• Provide ongoing security assurance across technology initiatives, supporting governance processes, security readiness assessments, and go-live reviews to ensure security requirements are met.
• Manage and enhance Microsoft-focused security platforms, maintaining configurations, supporting integrations, and improving platform effectiveness to maximise security value.
• Own and coordinate security platform support activities, including ticket management, issue resolution, vendor engagement, and the implementation of platform improvements and new security capabilities.
• Develop and maintain security standards, templates, guidance, and best practices while driving continuous improvement across security engineering, assurance, and platform operations.

Skills

Secure design

Security architecture

Microsoft security

Threat modelling

Stakeholder management

Delivery focused

Security platforms

Tools

Microsoft security tools

Identity protection

Endpoint security

Cloud security

Monitoring

Data protection

Job description

SEFE Group is seeking a Security Engineer to embed secure-by-design principles across its technology landscape. You will work in the Security Platforms & Architecture team, providing hands-on security engineering, guiding secure-by-design practices, and enhancing security platforms to strengthen overall security posture.

You will partner with delivery teams to define security requirements, perform threat modelling, and provide ongoing assurance across governance, readiness, and go-live reviews.