Mobile App Developer

Location: Greater London

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REQ At Believ, formerly known as Liberty Charge, we believe sustainable transport should be accessible to everyone. We’re a Charge Point Operator (CPO) on a mission to create the UK’s most reliable electric vehicle charging network that doesn’t cost the earth and leaves no one behind.

We work closely with local authorities and businesses to deliver reliable, high quality charging networks at pace, at scale and at zero cost.

We offer all the advantages of being a scale-up business, but with the added security and long-term backing from well-known parents - Liberty Global (who also own our delivery partner, Virgin Media O2) and Zouk Capital (who manage the Government’s Charging Investment Infrastructure Fund).You’ll be joining this exciting journey at the start of our scale-up phase, and work with us to hit the ambitious targets our shareholders have set.

You’ll become part of a passionate and supportive team in a fast-paced, dynamic and result-driven environment.
** About the role
** We are seeking an experienced Mobile App Engineer to develop and optimize our customer-facing mobile application and web portal as part of our in-house Charge Point Management System (CPMS). Reporting into the Head of Engineering, this role will be responsible for enhancing the app and web portal, which are 70% production-ready, to achieve feature parity with the incumbent SaaS solution.

Following the migration, the focus will shift to building innovative features and capabilities to deliver a market-leading experience for both Android and iOS users##
*
* Key responsibilities:

**###
** Native Mobile Development:
*** Develop and maintain high-quality native mobile applications for iOS and Android using
** Swift
* * and
** Kotlin**.### ###
** Performance Optimization:
*** Optimize mobile apps for speed, memory usage, and battery efficiency.### ###
** API Integration:
*** Work with REST/Graph

QL APIs developed in
** FastAPI
* * for real-time data synchronization.### ###
** Collaboration & Feedback:
*** Collaborate with cross-functional teams to align app features with CPMS functionalities, including the integration of
** OCPP/OCPI protocols**.### ###
** Testing & Debugging:
*** Write and maintain automated tests to ensure application stability and quality.
** About you
** At Believ, we are building a culture that attracts and retains the best talent. We are a dedicated and high-performing team, accustomed to working at pace in an ever-evolving industry, and we are looking for people who are as passionate as us about cutting carbon emissions and providing cleaner air for all. The successful candidate will have the following attributes and skills:##
** Knowledge &

Experience:

*** Proven experience developing and launching mobile applications for iOS and Android.
* Familiarity with mobile performance profiling tools and debugging techniques.
* Experience with backend integration for real-time data syncing.
* Knowledge of Agile development processes and version control tools like
** Git**.##
** Engineering Mindset
*** Ability to understand and consider the broader business context and long-term implications of technical decisions.
* Willingness to take ownership, innovate, and proactively seek opportunities to drive impact beyond immediate tasks.
* Strong focus on delivering solutions that align with business goals and address real-world challenges effectively.
* Commitment to delivering exceptional user experiences by prioritizing customer needs and feedback throughout the development process.
* Demonstrate enthusiasm, resilience, and a can-do approach to tackling challenges and driving success.##
** Skills & Abilities:
*** Proficiency in
** Swift (iOS)
** and
** Kotlin (Android)**.
* Strong experience in API integration and backend technologies like
** Python
* * and
** FastAPI**.
* Familiarity with containerized backend environments using
** Docker**.
* Strong problem-solving and debugging skills.
* Knowledge of cross-platform optimization techniques.
** Benefits
* ** Competitive salary and bonus scheme
* 25 days’…