Senior Software Engineer (Mobile Platform)

Job Description

Here at giffgaff we’re looking for a passionate and enthusiastic Software Engineer who doesn't just want to ship features, but wants to build the engine that ships them. You will join our Platform Team with a clear mission: Enable our feature teams to move faster, safely.

You will own the mobile architecture, the design system, and the developer experience. You won't just write code; you will design the standards for security, performance, and scalability that the rest of engineering relies on.

You will work in a cross-functional team with like-minded people to ensure this product is successful and sustainable. We work with many teams at giffgaff, including various partners and associates we rely on, to ensure we're active and engaged with our engineering community, improving our ways of working and maintaining a high standard and quality of products we create.

What you’ll build & own

• Platform Architecture: Architect the core React Native framework, abstracting complex tasks into reusable components.
• Design System Ownership: Build, document, and maintain the core UI library to ensure UI consistency across iOS and Android.
• Mobile DevOps: Own the CI/CD pipelines and manage the release lifecycle, including iOS/Android beta testing and upgrades.
• Native Bridging: Bridge the gap between JavaScript and Native (Swift/Kotlin) when necessary, ensuring performance and compatibility.

Who we are

Do you want to join a connectivity provider that's up to good? At giffgaff, we do things differently. We call out the bad and find a better way. We're laser-focused on flexibility, value and mutual good.

And we're proud to be a certified B Corp. This means we've joined a network of more than 2,000 UK companies who want to make a positive impact on people and the planet. Working at giffgaff is something you could be proud of too.

You'll get the best of both worlds, the energy and fast pace of giffgaff, plus all the benefits that come with being part of our parent company, Virgin Media O2.

Our business model is unique. We work with our members (our customers) to understand their needs in all areas of the business. We love this highly collaborative approach. We're always looking to acquire new members, and to do that we need the best people in our team.

In return for your outstanding efforts, you'll be rewarded with a competitive salary and excellent benefits that are all about making your work life a winner. Take a look at our culture and benefits - you might just be surprised.

Our bright and modern gaff is in Uxbridge, in leafy West London. But if commuting isn't for you, most of our roles can be hybrid or remote, or anywhere in between.

The must haves

In order to be considered, you must have the following experience;

• 5+ years of software engineering experience, with deep expertise in React Native.
• Test Driven Development, Pair Programming, Clean Code & Refactoring, System Design
• Proficiency in TypeScript and a strong understanding of static typing.
• Experience writing or maintaining Native Modules (Swift/Obj-C or Kotlin/Java).

The other stuff we are looking for

We'd also love you to bring;

• Observability, “you build it you run it” attitude
• Event-Driven Architecture; SOLID principles; micro-frontends
• Deep knowledge of performance profiling (Flipper, Xcode Instruments).
• Background in creating CLI tools to automate developer workflows.

What's in it for you

Our goal is to celebrate our people and their lives. We aim to create a culture that empowers everyone to bring the best versions of themselves to work each and every day. We believe the most inclusive and diverse culture makes for a better business and a brighter world.

Working at giffgaff means you get a bumper reward package bursting with benefits, and loads of extras you can add if you'd like to. These are designed to support both you and your loved ones, making sure that you're covered no matter what life throws your way.

We're all about hybrid working here, so expect to have a base location where you'll have the right facilities to enable amazing collaboration and quality time with your team, alongside all the right kit to work from home too.

Next steps

If we feel like a place where you can belong, we'd love to learn more about you as a person and your experience to date. Once you've submitted an application, the next steps of the process, if successful, are likely to include {*outline what the process is likely to include*}.

Please note: Applications will be reviewed, and interviews conducted throughout the duration of this advert, therefore we may bring the closing date forward. We encourage all interested applicants to apply as soon as possible. If you're offered a job with us, it will be conditional, based on the passing of background checks. All roles require a criminal record check and some roles need a financial probity check. Your recruiter can provide you with more information, if needed.

Thanks for your patience and for showing an interest in joining the giffgaff family.

LI-gg