Senior Mobile Engineer

Fuse Energy; Greater London; On-site; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Equity sign-on bonus

Biannual bonus scheme

Fully expensed tech

Paid annual leave

Breakfast and dinner allowance for办公室基

Job summary

Fuse Energy is building a fully integrated energy platform with mobile apps for iOS and Android. The role focuses on designing, building, and maintaining scalable mobile experiences with a strong emphasis on UI/UX and secure data handling.

You will collaborate with designers, contribute to architecture, and ensure performance and reliability across devices and networks.

Qualifications

• 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 for creating intuitive, responsive experiences.
• Hands-on experience integrating RESTful APIs with mobile applications.
• Familiarity with push notifications, messaging services, and related mobile frameworks.
• Understanding of mobile security fundamentals and ability to implement secure data handling.

Responsibilities

• Design, build, and maintain responsive, reusable, and reliable mobile applications for iOS and Android platforms.
• Work closely with designers to implement high-quality UI/UX and ensure design consistency.
• Contribute to architectural decisions to ensure scalability, maintainability, and flexibility of the mobile codebase.
• Test, debug, and resolve issues to maintain app stability and reliability.
• Troubleshoot production issues and provide timely resolutions to ensure smooth user experiences.

Skills

Swift

Kotlin

UI/UX principles

RESTful APIs

Push notifications

Mobile security

Job description

Fuse Energy is a forward-thinking renewable energy startup on a mission to deliver a terawatt of renewable energy - fast. We're combining first-principles thinking with cutting-edge technology to build a radically better energy system.

We’re creating a fully integrated energy company: from developing solar, wind and hydrogen projects to real-time power trading and distributed energy installations. By selling directly to consumers, we cut out the middleman, lower costs and pass on savings to customers.

But we’re not stopping there. We’re also building the Energy Network: a decentralised platform of smart devices that rewards users in Energy Dollars for electrifying their homes, shifting usage to off-peak hours, and helping balance the grid. This network strengthens grid stability - a critical foundation for scaling AI data centers and other energy-intensive industries.

Responsibilities

• Design, build, and maintain responsive, reusable, and reliable mobile applications for iOS and Android platforms
• Work closely with designers to implement high-quality UI/UX and ensure design consistency
• Contribute to architectural decisions to ensure scalability, maintainability, and flexibility of the mobile codebase
• Test, debug, and resolve issues to maintain app stability and reliability
• Troubleshoot production issues and provide timely resolutions to ensure smooth user experiences

Qualifications

• 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 for creating intuitive, responsive experiences
• Hands-on experience integrating RESTful APIs with mobile applications
• Familiarity with push notifications, messaging services, and related mobile frameworks
• Understanding of mobile security fundamentals and ability to implement secure data handling

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