Senior Application Security Engineer at Teya ensuring secure application development and deployment in a mission-driven fintech company. Collaborating closely with engineering and security teams to enhance application security practices.
Responsibilities
Design, implement, and continuously improve a Secure SDLC integrated from design through production
Embed security into planning and delivery via threat modelling, security requirements, and automated controls
Lead application security reviews for new systems, major features, and high-risk changes across web, API, mobile, and backend services
Define and maintain secure architecture patterns for authentication, authorisation, APIs, data protection, and multi-tenant isolation
Own the application security tooling stack (SAST, DAST, SCA), integrating it into CI/CD with high-signal, low-noise outputs
Partner with engineers to triage and remediate vulnerabilities based on exploitability, impact, and regulatory risk
Work with Security Operations to improve application-level logging, telemetry, and incident response readiness
Act as a trusted advisor to engineering teams, raising the bar through practical guidance, documentation, and targeted training
Requirements
6+ years’ experience in application security, security engineering, or software engineering with a strong AppSec focus
Demonstrated experience designing or operating Secure SDLC practices in fast-moving product teams
Hands-on expertise in web and API security, including authentication, authorisation, data flows, and common vulnerability classes
Proven experience integrating SAST, DAST, and SCA into CI/CD pipelines
Strong threat modelling and secure design skills for complex, cloud-native systems
Experience with modern backend and frontend or mobile stacks (e.g. JVM, Node.js, Go, TypeScript)
Familiarity with AWS and cloud-native architectures (IAM, KMS, containers, microservices)
Clear, pragmatic communication skills and the ability to influence through partnership rather than mandate.
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