Senior Mobile Security Developer
We are seeking a Senior Mobile Security Developer to strengthen the security of mobile applications and services across iOS and Android platforms. In this role, you will design, implement and maintain secure mobile solutions, embed security throughout the software development lifecycle, and help protect sensitive data, user identities and application functionality. You will work closely with mobile engineers, backend developers, architects, product teams and security specialists to identify risks and deliver practical, resilient solutions.
Your responsibilities will include defining mobile security standards, reviewing application architecture and source code, conducting threat modelling, and identifying vulnerabilities through manual testing and automated analysis. You will develop and maintain security controls such as secure authentication, authorisation, encryption, certificate and key management, secure storage, application hardening and runtime protection. You will also support penetration testing, investigate security incidents, advise on remediation, and contribute to security tooling, guidelines and technical documentation. A key part of the role will be mentoring developers and promoting secure coding practices through reviews, workshops and clear, actionable guidance.
Applicants should have substantial commercial experience in mobile application development and security, with strong knowledge of either Swift and iOS, Kotlin and Android, or both. You will be comfortable analysing mobile binaries, APIs, network traffic and common attack techniques, with practical experience using tools such as mobile proxies, static and dynamic analysis platforms, debuggers and vulnerability scanners. Familiarity with OWASP Mobile Application Security, secure SDLC practices, CI/CD pipelines, cloud services and modern authentication standards is expected. Relevant security certifications or equivalent experience are desirable. We are looking for an analytical, collaborative professional who can communicate complex security issues clearly, balance risk with delivery needs, and take ownership of improvements from discovery through to verification.
Senior Mobile Security Developer
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