Senior Application Security Engineer

Senior Application Security EngineerCentral Manchester (3 days in-office)Up to £95,000 + Generous benefitsWe''re partnering with a high-growth SaaS fintech that''s looking to hire a Senior Application Security Engineer to join their expanding team.This is a genuinely impactful role sitting at the intersection of cloud, application security, and platform engineering, ideal for someone who wants to move beyond advisory and actively shape secure, scalable systems in production.What you''ll be doing:Embedding security into cloud-native architectures across AWS, Azure and/or GCPDriving secure-by-design principles across the full SDLCDesigning and securing multi-tenant systems, including robust tenant isolationWorking closely with engineering teams to influence architecture and design decisionsSecuring modern AI/ML infrastructure (LLMs, pipelines, vector databases)Building and enforcing security within Infrastructure as Code and CI/CD pipelinesWhat they''re looking for:Background in cloud security, application security, or platform engineering within SaaS environmentsStrong understanding of application security beyond the basics, comfortable analysing data flows, trust boundaries, and complex attack surfacesExperience designing systems where security is a core architectural considerationHands-on experience with AWS, Azure or GCPKnowledge of modern authentication and authorization (OAuth2, OIDC, SAML, JWT, RBAC/ABAC)Experience integrating security tooling into CI/CD (SAST, DAST, ..... full job details .....