Application Security Engineer (AI)

Location: London, England; hybrid work with at least three days per week in the office

Company

hirify.global develops Fin, an AI Customer Agent and integrated help desk for customer service teams.

What you will do

• Engineer and operate tier-zero security capabilities for secure deployment and management of Fin.
• Design and evolve customer-facing security features, including authentication, SAML/SSO, permissions, audit logging, activity logging, and malicious URL scanning.
• Partner with engineering teams throughout the software development lifecycle to build secure products and services.
• Conduct architecture reviews, threat modelling exercises, and security assessments for complex systems.
• Build security tooling, automation, and developer-facing building blocks that support secure development at scale.
• Lead application security initiatives, incident response, investigations, remediation, and security assessments for AI-powered products.

Requirements

• Experience in application security, product security, or security engineering within a SaaS environment.
• Strong software engineering skills, including designing, building, and operating production systems.
• Deep knowledge of application security threats, secure software development, and threat modelling.
• Experience securing authentication, authorization, identity, or enterprise security capabilities.
• Experience with architecture reviews, security assessments, incident response, investigations, and remediation.
• Strong programming skills and the ability to communicate security concepts clearly and collaborate with engineering teams.

Nice to have

• Experience with authentication, SAML/SSO, identity, or access management capabilities.
• Experience securing AI-powered products or knowledge of security considerations for large language models, agentic systems, retrieval-based architectures, or AI tool integrations.
• Experience building security automation or security-focused platform capabilities at scale.
• Familiarity with cloud security, infrastructure security, or distributed systems.

Culture & Benefits

• Hybrid working policy combining office collaboration with flexibility to work from home.
• Benefits and programs supporting health and wellbeing, family, time away from work, and financial security.
• Open and accepting work environment focused on collaboration and delivering customer value.
• Equal employment opportunity and a commitment to diversity.