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why Join

Why join Three?

We’re more than a mobile network. We’re an innovative business that uses cutting-edge technologies to build the UK’s fastest 5G network and deliver better connectivity, every day, for every customer.

By joining us, you’ll have a hand in the impactful work we do. Your big ideas, hands-on approach and thirst for knowledge will keep families, friends and colleagues connected. Being a part of our collaborative team will mean getting to work on challenging projects – while still having fun. After all, we’re serious about what we do, but we don’t take life too seriously.

why Join

Three and you

We’ll give you responsibility, but you won’t be left to fend for yourself either. Our values are all about teamwork and appreciation. Our brand-new Reading office gives you all the space you need to collaborate, and our hybrid approach to home and office working gives you the best of both worlds.

We’ll look after you and equip you with the tools and confidence to fly in your new role. And by working virtually, you also have the freedom to go beyond desk work. This is a bold community, fuelled by our High-Performance-Driven People Culture. Where you’ll delight customers with standout initiatives like our London Fashion Week ‘Mixed Reality’ event.

Sound good so far? Keep scrolling to find out about our graduate programmes.

why Join

Graduate programmes

Across our two-year programmes*, you can enjoy an holistic learning experience – become fully immersed in our business, social events and the work we do for our customers. You’ll even have exposure to our CEO. This is your opportunity to dive into the working world and get to grips with some pretty great technology too. If you’re graduating this year or graduated in the last two years, you can apply to join us in September.

*For Finance, it’s a three-year apprenticeship programme – with a CIMA or ACCA qualification included and paid for.

What can you do?

There are many different business areas to choose from when completing your graduate programme. For all our teams, you’ll need to bring a proactive attitude and a willingness to develop. In return, you’ll learn more than you could have ever imagined.

Technology is our largest function. As a member of this team, you’ll be thrown in the deep end, using your passion for technology to come up with big ideas. You’ll be guided by a mentor. And you’ll collaborate with top experts to innovate brand-new customer initiatives.


Join our Commercial team and work alongside Marketing and Brand professionals to learn how we tell a coherent story to customers across the nation. This is your time to shine by collaborating cross-functionally to bring digital and physical ideas to life.


Our Business function is brand-new. This means you can help influence its direction – think entrepreneurial spirit within a large, successful brand. In this team you’ll be helping us delight our business customers.


As a Finance graduate, you’ll enjoy a three-year programme fuelled by career development. Here, you’ll learn the ins and outs of how financial solutions power our business and influence our growth – all while landing a CIMA or ACCA qualification.


As a graduate you’ll be part of a cross company UKI team enabling Three to plan, agree, align and support successful change delivery across our business. The change we deliver is big and we partner to support continued improvements to deliver the company plan.

why Join

Your development

We have a great training and development programme that will boost your skills, get you ready for the future and help you build your professional network. We offer national business exposure, business rotations and an onboarding programme that won’t just introduce you to Three but will take you on a journey of discovery – with experts to support you at every step.

why Join

Rewarding you

There are lots of perks to the job and you can experience each and every one of them while working with us.

  • Competitive salary
  • 5% annual bonus
  • Latest phone with unlimited data
  • Work laptop
  • Industry-leading paid leave (28 days, 8 bank holidays and up to 3 personal days)
  • Digital wellbeing and health cover (Headspace app and digital GP)
  • Tickets to some of the biggest festivals and gigs in UK&I

Like what you see?

Find out more

Application journey

Applications will open in January 2022 for our Technology roles, all other roles will open in November 2021 for our September 2022 start dates. Once you’ve applied you will be asked to complete some online assessments. Please note, we won’t contact you again until the application window closes for the roles you’ve applied to.

Nail the online assessment stage and you’ll be invited to a live video interview. You’ll be asked questions about our values, your reasons for applying, and your skills. You should come prepped with some questions to ask us too.

Our virtual assessment centre is all about getting to know you better. Don’t worry, we’ll prepare you for the virtual event in the weeks before – we’re here to see you succeed. If all goes well, then, congratulations, you’ll have a place with us! If it’s not great news, we’ll provide you with in-depth feedback to help you develop.


We’re still designing our apprenticeship programme – so watch this space.

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