IT & Software

Senior Mobile Engineer

Fuse Energy Supply

London · Greater London · United Kingdom

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Overview

In this role, you will design, build, and maintain mobile apps for iOS and Android to power Fuse Energy’s consumer and grid-facing experiences. You’ll collaborate with designers to deliver polished UI/UX and contribute to scalable mobile architecture. You will diagnose issues, improve app reliability, and address production challenges to ensure a smooth user experience. This role puts you at the intersection of energy innovation and consumer technology, shaping how users engage with our energy network.

Pay / Benefits
  • Competitive salary and an equity sign-on bonus
  • Biannual bonus scheme
  • Fully expensed tech to match your needs
  • Paid annual leave
  • Breakfast and dinner allowance for office based employees
Responsibilities
  • Design, build, and maintain mobile applications for iOS and Android
  • Collaborate with designers to ensure high-quality UI/UX and consistency
  • Contribute to architectural decisions for scalable, maintainable codebases
  • Test, debug, and resolve issues to ensure stability
  • Troubleshoot production issues and provide timely resolutions to support smooth user experiences
Key requirements
  • 5+ years of professional experience building mobile applications for iOS and Android
  • Proficiency in Swift and Kotlin
  • Strong grasp of mobile UI/UX principles and best practices
  • Hands-on experience integrating RESTful APIs with mobile applications
  • Familiarity with push notifications and related mobile frameworks
  • Understanding of mobile security fundamentals and secure data handling
  • Swift
  • Kotlin
  • RESTful APIs
  • Push notifications
  • Mobile security
  • UI/UX principles

Reference: WJ-747_31195048 · Posted 01 Nov 2026, 12:12 PM

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