Senior Android Engineer - Mobile Security (Kotlin/Jetpack)

Coltech in Manchester seeks a Senior Android Engineer (Contract) to join its Mobile Security team, delivering security-focused Android applications at scale.

You will design and build modular, Kotlin/Java apps using modern architecture, collaborating with security and engineering teams, and driving best practices, testing, and CI/CD in a regulated banking environment.

This role offers exposure to security hardening, performance tuning, and scalable delivery within enterprise platforms.