The pathway
How you actually get there, here
How you become one varies far more by country than what one does. This is the UK route. Most people take one of these ways in; the right one depends on where you're starting from.
- 1
Mobile Developer (L2) to Senior Mobile Developer (L3)
2-3 years as an L2Skills to master
- Independently delivering medium-to-complex features, taking ownership of code quality, beginning to mentor juniors informally, and proactively identifying technical improvements.
You're ready to move on when
- Consistently delivers assigned work with high quality and minimal supervision.
- Proactively identifies and solves technical challenges without constant guidance.
- Provides helpful and constructive feedback during code reviews for peers.
- Demonstrates a deep understanding of the mobile codebase and architectural patterns.
- 2
Backend Developer (L2/L3) to Senior Mobile Developer (L3)
3-5 years, often with a dedicated 'mobile transition' periodSkills to master
- Learning mobile-specific UI/UX principles, mastering native platform SDKs (Swift/Kotlin), understanding mobile performance constraints, and adapting to mobile release cycles.
You're ready to move on when
- Has built and shipped at least one personal mobile application.
- Demonstrates strong understanding of API integration from a mobile perspective.
- Shows a keen interest and aptitude for learning mobile-specific frameworks and tools.
- Can translate backend data models into efficient mobile representations.
- 3
Full-stack Developer (L2/L3) to Senior Mobile Developer (L3)
2-4 years, with a focus on mobile specialisationSkills to master
- Deepening expertise in mobile-specific state management, UI testing, and platform nuances. Moving from generalist to mobile specialist.
You're ready to move on when
- Has significant experience with front-end frameworks (e.g., React, Vue) and can apply similar principles to mobile UI development.
- Demonstrates a strong desire to specialise in mobile and contribute to the mobile ecosystem.
- Can articulate the differences and challenges of mobile vs. web development.
- Has a solid grasp of data flow and architecture across different layers.