Principal Software Engineer (Mobile)

United States Digital Space LLC; Windsor; Hybrid; GBP 90,000 - 150,000; Full time

Job summary

the company in the UK offers a hybrid role for a Principal Software Engineer (Mobile). You will lead the mobile engineering domain, shape technical strategy, and ensure scalable, secure, and performant mobile platforms that power field operations and customer experiences.

You will collaborate with product and engineering, drive engineering excellence, and guide multiple teams through delivery challenges while staying current with mobile technologies.

Qualifications

• Strong expertise in React Native and mobile app development lifecycle.
• Experience shipping mobile apps to App Store and Google Play.
• Proven ability to lead multiple teams and influence decisions.

Responsibilities

• Define and drive technical strategy for mobile platforms and apps.
• Lead architecture reviews, design reviews, and code reviews.
• Mentor engineers, remove blockers, and improve delivery quality.

Skills

React Native

Mobile development

Testing strategy

CI/CD pipelines

GitHub & workflows

Observability & performance

Technical leadership

Architecture reviews

Delivery improvements

Tools

Azure DevOps

Power Apps

Intune

Job description

*Description*

Join us, be part of more.

We’re so much more than an energy company. We’re a family of brands revolutionising how we power the planet. We're energisers. One team of 21,000 colleagues that's energising a greener, fairer future by creating an energy system that doesn’t rely on fossil fuels, whilst living our powerful commitment to igniting positive change in our communities. Here, you can find more purpose, more passion, and more potential. That’s why working here is #MoreThanACareer. We do energy differently - we do it all. We make it, store it, move it, sell it, and mend it.

Principal Software Engineer (Mobile)

Location: UK-based hybrid role, Occasional travel to site.

the company, Technology is a core driver of how we deliver our strategy.

You’ll join a team modernising our platforms, strengthening cyber and operational resilience, and advancing a product‑led way of working that brings engineers, data specialists and business experts together to deliver meaningful outcomes at pace. We’re scaling automation and AI from proof‑of‑concept into real, end‑to‑end change - improving customer journeys, reducing cost‑to‑serve, accelerating delivery, and building the digital foundations that underpin everything from energy trading and risk to field operations and critical infrastructure.

If you want to work on complex, high‑impact problems using modern engineering practices, and help build reusable platforms that will shape how the company operates over the next decade, this is the place to do it.

An opportunity to play your part

the company is seeking a highly skilled and experienced Principal Software Engineer (Mobile) to join our Field Platform team. In this role, you'll provide technical leadership for the mobile engineering domain, helping to build world‑class applications that enable our Field Engineers to deliver exceptional customer service. You'll play a key role in shaping technical strategy, driving engineering excellence and ensuring our mobile platforms remain scalable, reliable and innovative.

Day to day :

People

• Coach, mentor and support engineers across the organisation, acting as a role model for technical excellence, collaboration and continuous improvement.
• Contribute to growing high‑performing engineering teams through technical recruitment, assessment and selection activities.

Product

• Partner with Product and Engineering stakeholders to influence product strategy, ensuring technical decisions align with customer, business and operational objectives.
• Use your deep mobile engineering expertise to identify opportunities, shape future capabilities and drive product outcomes.
• Maintain a strong understanding of business priorities, platform performance and engineering operating costs, helping teams balance innovation, value and sustainability.

Delivery

• Support teams in adopting effective delivery practices, including iterative development, estimation, prioritisation and continuous value delivery.
• Monitor delivery health and team performance, proactively identifying risks, removing blockers and driving improvements across ways of working.
• Guide teams through technical and delivery challenges, ensuring a focus on simplicity, quality and customer value.

Engineering

• Define and drive the technical strategy, architecture and standards for the company's mobile platforms and applications.
• Design scalable, resilient and maintainable mobile solutions that support both current and future business needs.
• Provide technical leadership through architecture reviews, design reviews and code reviews, ensuring solutions are secure, performant and aligned to broader platform strategy.
• Support critical incidents and post‑incident reviews, driving learning and continuous improvement across engineering teams.
• Champion engineering best practices, including code quality, testing, operational excellence and modern software delivery approaches.
• Lead engineering communities, guilds and knowledge‑sharing initiatives, helping to raise technical capability across the wider organisation.
• Stay current with emerging mobile technologies, industry trends and engineering practices, identifying opportunities to enhance the company's digital products and platforms.

What we need from you :

Essential Skills & Experience

• Strong expertise in React Native and modern mobile application development.
• Proven experience delivering and supporting mobile applications through the full development lifecycle, including deployment to the Apple App Store and Google Play Store.
• Experience building robust automated testing strategies, including unit and integration testing.
• Strong understanding of mobile CI/CD pipelines, release management and deployment automation.
• Experience using GitHub and modern source control workflows.
• Knowledge of mobile observability, alerting, monitoring and performance optimisation.
• Ability to provide technical leadership, influence engineering decisions and support multiple teams in delivering high‑quality mobile solutions.

Desirable Skills & Experience

• Experience with native mobile development for iOS and/or Android.
• Experience with UI and end‑to‑end testing frameworks and practices.
• Knowledge of React and modern web technologies.
• Experience designing and consuming APIs and web services.
• Familiarity with Azure DevOps and modern cloud‑based development toolchains.
• Experience with Microsoft Power Apps and Microsoft Intune.
• Experience working in product‑led, cross‑functional teams and influencing technical direction across a broad engineering landscape.

Why should you apply?

We’re not a perfect place – but we’re a people place. Our priority is supporting all of the different realities our people face. Life is about so much more than work. We get it. That’s why we’ve designed our total rewards to give you the flexibility to choose what you need, when you need it, making sure that you and your family are supported not only financially, but physically and emotionally too. Visit the link below to discover why we’re a great place to work and what being part of more means for you.

https://www.morethanacareer.energy/the company

If you're full of energy, fired up about sustainability, and ready to craft not only a better tomorrow, but a better you, then come and find your purpose in a team where your voice matters, your growth is non‑negotiable, and your ambitions are our priority.

Help us, help you. We would love for you to share any information about yourself throughout our recruitment process so that we can better understand you and help shape your journey.