Senior Software Engineer

OneSpan • Barcelona, Catalonia, Spain • Posted May 26, 2026

Location Barcelona, Catalonia

Job Type Full-time

Category Computer Occupations

Posted May 26, 2026

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 mai...
            

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