Senior Mobile Engineer
  • England,London,City of London
  • Full Time, Permanent
  • £65,000 - £85,000 per annum
Job Description:
Senior Mobile Engineer
Hybrid
We’re looking for a Senior Mobile Engineer to take ownership of a critical mobile platform transformation. This is a hands-on, high-autonomy role where you’ll architect a new React Native application from the ground up while stabilising and evolving an existing Kotlin Android app used in live rail environments.
If you enjoy working across both greenfield builds and complex legacy systems, and thrive in environments where your technical decisions have real-world impact, this role is for you.
Skills required:*6+ years of mobile engineering experience

*Strong Kotlin expertise (Clean Architecture, MVVM, DI, Coroutines/Flow)

*Proven React Native experience beyond UI (native modules, Bridge/JSI, performance)

*Experience integrating React Native into an existing Android codebase (brownfield)

*Track record of contributing to or leading mobile platform migrations

*Ability to make architectural decisions in high-risk, live environments

*Comfortable navigating ambiguity and switching between greenfield and legacy work

*Strong communication skills and experience in remote, cross-functional teams

Desirable skills:
*Experience migrating from native to cross-platform apps

*Background in transport, logistics, or regulated industries

*Familiarity with Android performance profiling tools

*Experience in B2B SaaS products

*Exposure to iOS/Swift architecture

Benefits included*Private healthcare after probation (including children)

*Hybrid working model

*25 days holiday

*Volunteering leave

*Free flu jab for you and your family

Senior Mobile Engineer


Due to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered suitable for interview will be contacted.
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Job number 3563726

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Company Details:
Proactive Appointments
Company size: 20–49 employees
Industry: Recruitment Consultancy
With 30 years of experience, Proactive.IT Appointments are at the forefront of the IT recruitment sector. Established in 1991, we have become the pref...
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