Application Security Engineer
TeyaLondon, England, United Kingdom
Posted February 5, 2026
Full Time
About the Company
Teya is a London‑based fintech that empowers small, local businesses across Europe with an integrated suite of payment and business‑management tools. By combining seamless payment processing, banking features, and operational analytics into a single platform, Teya eliminates the friction that often hampers SMB growth. The company’s commitment to fair, transparent pricing and a user‑centric design sets it apart in the competitive B2B fintech space. Teya’s culture values innovation, customer focus, and a collaborative approach that drives sustainable success for its clients.
Job Description
Teya is a payment and software service provider looking for an Application Security Engineer to join their mission to help small, local businesses thrive. As a Senior Application Security Engineer, you will own and evolve how application security is designed, built, and operated across products, ensuring banking-grade security without slowing teams down.
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
Benefits
- Comprehensive benefits
- Continuous learning opportunities
- Supportive community
- Inclusive environment