Siena Partnership
Security Architect
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Security Architect
📍 London (Blackfriars) | Hybrid
I'm working with a private equity-backed financial services organisation, backed by Oakley Capital, that is embarking on a major transformation to rebuild its core lending platform. Before moving into delivery, the business is investing in an architecture discovery programme to define the future-state technology landscape. As part of this, they're bringing together a small team of senior architects across Cloud, Infrastructure, Data, Payments and Security to shape the platform from the ground up.
This is a rare opportunity to influence the security architecture before any significant development begins, ensuring security is embedded into the platform from day one.
The Role
As the Security Architect, you'll be responsible for defining the target security architecture that will underpin the next generation of the platform. Working alongside senior architecture peers, you'll assess the current security landscape, identify architectural gaps and risks, and produce the security roadmap that will guide the wider transformation programme.
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Key Responsibilities
- Assess the current security posture across Azure and Appian Cloud (AWS).
- Design the future-state security architecture across cloud, infrastructure, applications and data.
- Define Identity & Access Management (IAM) across Azure, AWS and Appian Cloud.
- Design secure integration patterns, API security, encryption, secrets management and privileged access controls.
- Define security monitoring, threat detection and operational security requirements.
- Recommend governance frameworks and security controls suitable for a regulated financial services environment.
- Produce architectural documentation, gap analysis and a board-level security roadmap.
- Present recommendations to senior stakeholders and executive leadership.
What We're Looking For
We're keen to speak with Security Architects who have experience delivering enterprise security architecture within complex transformation programmes.
You'll ideally have:
- Experience designing security architectures across Azure, AWS or hybrid cloud environments.
- A background working within Financial Services, FinTech, Banking, Insurance, Legal, Professional Services or other regulated industries.
- Strong knowledge of IAM, Zero Trust, cloud security and secure-by-design principles.
- Experience producing target-state architectures, security roadmaps and architectural documentation.
- The ability to communicate technical concepts to senior stakeholders and present architectural recommendations to executive leadership.
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Why Join?
This isn't a role where you'll inherit someone else's architecture. You'll be defining the security foundations of a platform that the organisation will invest in for years to come, working alongside experienced Cloud, Infrastructure, Data and Payments Architects in a highly visible programme with direct exposure to executive leadership.
If you're looking for a strategic architecture role where you'll genuinely influence the direction of a major financial services transformation, I'd be happy to tell you more.
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