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    Senior Application Security Engineer – Mobile Apps

    Location: Stockholm, Stockholm County, Sweden (Hybrid)

    Contract Type: Permanent

    We are looking to hire multiple Senior Security Engineers with a strong focus on mobile application security to help raise the security bar across our mobile and backend platforms. This is a hands-on role, working closely with engineering and product teams to identify, design, and implement effective security controls throughout the development lifecycle.

    Key Focus Areas

    Mobile App Security (iOS & Android)

    • Authentication and authorization mechanisms
    • Secure data storage
    • Runtime protections and hardening techniques

    API Security

    • OAuth and token-based authentication
    • Abuse prevention and rate limiting
    • Identification and mitigation of business logic vulnerabilities

    Secure SDLC

    • Threat modelling and design reviews
    • Hands-on security reviews of mobile and backend systems

    Cross-functional Collaboration

    • Partnering closely with product managers and mobile/backend engineers to embed security into day-to-day development

    Ideal Background

    • Proven experience as an Application Security EngineerProduct Security Engineer, or Mobile Engineer with a strong focus on application security
    • Strong understanding of mobile-to-API interaction patterns and common attack vectors in modern mobile applications
    • Ability to work hands-on and pragmatically with engineering teams

    Nice to Have

    • Experience with React Native internals
    Rhys Shekleton

    Posted by

    Rhys Shekleton

    Associate Director

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