Android Engineer

Number of employees

4300

Sheffield (GB), United Kingdom

Posted on: 2025-10-17

Category: energy

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Employment type:

Full time

Experience required:

Intermediate

Salary

Salary not provided

About the company:

We're on a mission to make a big green dent in the universe by building a truly sustainable energy system globally.

That means making power greener, smarter, and more affordable for everyone.

We put customers at the heart of everything we do: with always-fair prices, transparency and outrageous customer service.

We drive system change: with transformative tech to make renewable energy the norm and end global reliance on fossil fuels.

Octopus Energy Group is made up of 10 businesses spanning 6 countries across 3 continents, including: Octopus Energy Retail, Kraken Technologies, Octopus Energy Generation, Kraken Flex, Octopus Electric Vehicles, and the Octopus Centre for Net Zero. More on OEG @ octopusenergy.group

We can't hire everyone… but we can help them shine somewhere brilliant.

At Octopus, we're lucky to attract some incredibly talented humans. And while we can’t bring every talented person into our team, we can help them land somewhere that’s just as mission-driven. That’s why we’re sharing opportunities from MOPO; a company we’ve proudly backed through a strategic investment.

MOPO is transforming access to clean, affordable energy across Sub-Saharan Africa with its pioneering solar battery technology. As part of our partnership to accelerate global electrification and leapfrog dirty fossil fuels, we’re supporting their hunt for exceptional talent. If you share our passion for tech-driven climate solutions, this could be your chance to make a serious impact.

Joining their existing growing Sheffield-based team, you'll be working to match their ambition to radically reimagine transport and energy in Africa through the development of MOPO's core Rental App, as well as supporting the development of the wider MOPO Platform - both critical tools that empower their network of local agents to manage battery distribution and customer relationships across the
continent.

You'll be building and maintaining Android applications that work reliably in challenging connectivity environments, enabling thousands of agents to run their businesses and serve their communities. Your work will directly interface with our MOPO Platform backend, creating
seamless experiences that drive our energy distribution network.

It's an exciting and varied challenge where your code directly impacts lives and livelihoods.

They're looking for a candidate to join our team to enhance our mobile capabilities as they rapidly scale across Africa and to help shape the technical direction of our mobile architecture.

Working location
The role is based primarily in our Sheffield HQ, with up to two days working from home if desired. Occasional international travel to Sub-Saharan Africa is entirely optional, but is something they offer to all of their employees if they are interested.

Closing date for applications: 17th November 2025 12pm.

More about MOPO:
MOPO is on a mission to enable renewable energy access in underserved markets. Already operating in Nigeria, DRC, Sierra Leone and Liberia, our solar power stations distribute energy through proprietary MOPO Batteries managed by a network of local agents.

Our model is already powering thousands of homes and small businesses - eliminating fossil fuel use and enabling livelihoods.

With backing from Octopus Energy, British International Investment, and Norfund, MOPO is scaling rapidly and is positioned to transform energy access and e-mobility across the continent

The role will interest you if...

  • You’re excited by the prospect of transforming the off-grid energy and e-mobility market in Africa
  • You have a passion for improving the lives of the customers who use our products
  • You are interested in working in a truly collaborative environment where you'll work closely with backend engineers, product designers, and stakeholders across our operations
  • On a given day you'll likely...

  • Work collaboratively across the company to continuously refine how our mobile applications can create the greatest impact for agents and customers
  • Design, develop, and maintain features for our Android applications that enhance agent productivity and customer experience
  • Build robust offline-first functionality to ensure our agents can operate effectively regardless of connectivity
  • Optimise app performance for a wide range of Android devices common in our markets
  • Integrate with our Django/Python backend APIs to synchronize data and enable real-time operations
  • Implement intuitive UI/UX that works for users with varying levels of digital literacy
  • Conduct code reviews, mentor team members, and champion Android best practices
  • Debug and resolve issues reported from the field to ensure minimal disruption to our operations across four countries
  • Participate actively in Agile processes, contributing to planning and refinement sessions
  • We would like to hear from you if you have the following experience...

  • Strong proficiency in Kotlin and/or Java for Android development
  • Experience with Android SDK, Android Studio, and modern Android architecture patterns (MVVM, MVP)
  • RESTful API integration and handling of network connectivity challenges
  • Android UI/UX best practices and Material Design guidelines
  • Version control systems (e.g., Git) and CI/CD pipelines for mobile apps
  • Mobile app security best practices and performance optimization
  • Experience with Android debugging tools and crash reporting systems
  • Google Play Store deployment and app lifecycle management
  • The following would be a strong plus...

  • Expertise in offline-first mobile architectures and data synchronization strategies
  • Experience with Bluetooth Low Energy devices
  • Experience with mobile payment integrations or fintech applications
  • Background in building apps that work well on lower-end devices and limited connectivity
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