Security Engineer: Secure-by-Design & MS Platforms (Hybrid)

SEFE Marketing & Trading Ltd; Greater London; Hybrid; GBP 60,000 - 100,000; Full time

Benefits offered by this job

Hybrid work model

London office location

Job summary

SEFE Marketing & Trading Ltd is seeking a Security Engineer – Secure by Design & Platforms to embed security across SEFE’s technology landscape. You will work in the Security Platforms & Architecture team, delivering hands‑on engineering, supporting secure‑by‑design practices, and strengthening security platforms.

You will influence architecture reviews, security assurance, and platform operations while collaborating with delivery teams to implement pragmatic controls.

Qualifications

• Proven experience delivering secure‑by‑design outcomes in complex tech environments.
• Experience in architecture reviews, security assurance, and project delivery.
• Strong understanding of security across applications, infrastructure, cloud, and enterprise platforms.
• Hands‑on with configuring or administering security technologies, esp. Microsoft security tools.

Responsibilities

• Partner with programmes to embed secure‑by‑design from inception to implementation.
• Conduct security design reviews and threat modelling to identify risks and mitigations.
• Provide security assurance across initiatives and support go‑live reviews.
• Manage and enhance Microsoft‑focused security platforms, configurations, integrations and improvements.
• Coordinate security platform support, vendor engagement, and continuous security improvements.
• Develop and maintain security standards, templates, and best practices across teams.

Skills

Secure-by-design

Security architecture

Threat modelling

Microsoft security

Stakeholder management

Security governance

Tools

Microsoft Defender

Azure Security Center

Job description

SEFE Marketing & Trading Ltd is seeking a Security Engineer – Secure by Design & Platforms to embed security across SEFE’s technology landscape. You will work in the Security Platforms & Architecture team, delivering hands‑on engineering, supporting secure‑by‑design practices, and strengthening security platforms.

You will influence architecture reviews, security assurance, and platform operations while collaborating with delivery teams to implement pragmatic controls.