Senior Software Engineer

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About this role

Senior Software Engineer Barcelona At OneSpan , we specialize in digital identity and anti-fraud solutions that create exceptional and secure experiences. OneSpan is currently looking for a Sr. Software Engineer (Python) to join our team in Barcelona. We are building an advanced Android application protection tool focused on APK/AAB transformation, code obfuscation, and native code integration. Our tooling analyzes and transforms Android applications at different levels, including bytecode and build artifacts, to implement protection and security mechanisms used in production mobile environments. We are looking for a senior engineer who can help us evolve the architecture, maintainability, and scalability of the platform while mentoring a growing engineering team. Job Duties and Responsibilities - Design, develop, and evolve our Android protection tooling written primarily in Python. - Improve the architecture, modularity, reliability, and maintainability of the system. - Work on complex transformation pipelines involving APK/AAB processing and code manipulation. - Contribute to performance optimization and scalability of the tooling. - Write clean, testable, and production-quality code. - Improve testing strategies, CI/CD pipelines, release automation, and developer workflows. - Mentor junior engineers and help grow engineering best practices across the team. - Collaborate closely with Android and security engineers to design and implement new protection techniques. - Participate in technical discussions, code reviews, and architectural decision-making. - Design and develop our app protection tool using Python to support our platform and products. - Work on challenging architectural and performance problems, contributing to the evolution of our systems. - Write clean, maintainable, and

Read the full description at www.onespan.com. FewerJobs shows a source-linked preview and links to the original posting.