VodafoneThree - Senior Software Engineer

Location: Newbury or Speechmark London  + *Hybrid
Salary: Excellent basic salary plus bonus and Vodafone benefits
Working hours: Full time 37.5 hours per week – Monday to Friday
*Hybrid
We believe that through collaboration and connection with our colleagues we can achieve great things. Our hybrid working approach allows our people to work both in the office and at home, providing the flexibility and resources you need to succeed in your role. We don't require you to be in on specific days; instead, we ask people to come into the office 2-3 days each week, for at least 8 days per month. You should work with your line manager to understand what their expectations are for you, your specific role and your team.

Who We Are
We’re here to build a network the UK can count on – one that connects people, places and potential. Because no matter where you live, what your background is, or how you get online – we think everyone deserves the same chance to stay connected, and with VodafoneThree, that future’s being built – today.
We’re creating more than the UK’s best network. We’re helping close the digital divide, empower communities and drive meaningful progress.
We believe that everyone should feel they belong. Whoever you are and whatever your story, there’s space for you here. We’re building a workplace where different perspectives are welcomed, voices are heard, and everyone feels safe to show up as themselves.
You’ll join a team that genuinely cares – about each other, about our customers, and about the future we’re building. From day one, you’ll be welcomed, valued and encouraged to bring your whole self to work.
Why VodafoneThree
Join us and you’ll be at the heart of change. That means building responsibly, investing sustainably and creating opportunities that last.
We’re not just expanding connectivity; we’re reimagining what a connected nation looks like. With £11bn invested in 5G and digital infrastructure, your work will directly power businesses, services, and communities across the country.
You’ll work on real challenges, with real impact, across every corner of the country. Wherever you join us, whatever your role, you’ll be helping to build a future that works better for everyone.
We move at pace, because what we’re building matters – and we’re learning as we go. We’re proud of the progress we’ve made, but we’re just getting started.

Join our IT teams, which is at the core of our digital future, analysing and operating all our internal and customer-facing systems, with the aim of delivering the best customer experience. None of it would be possible without our innovative teams, creating a connected future with technologies like Cloud, AI and big data.

What you’ll do

We're looking for an experienced Senior Engineer to join our cross functional team and help build and scale high-quality, performant backend applications. You'll take technical ownership of features end to end, mentor other engineers, and play a key role in shaping our back-end architecture and engineering standards. You'll bring deep expertise in modern microservices architecture and help raise the bar for how we design, build and ship software.

KEY RESPONSIBILITIES

• Design, build and maintain production web applications using TypeScript, React and JavaScript.
• Take ownership of features from technical design through to delivery and ongoing support.
• Broaden your skill set beyond the front end by T-shaping into adjacent areas such as Java microservices or app engineering, contributing across the wider stack as needed.
• Leverage AI-assisted development tools to accelerate delivery in a safe, scalable and maintainable way, establishing good practice for how the team adopts them.
• Collaborate closely with product, design and backend teams to deliver well-architected solutions.
• Champion code quality through reviews, testing, and clear engineering standards.
• Mentor and support more junior engineers, sharing knowledge and best practice.
• Help define and evolve the front-end architecture, tooling and CI/CD processes.
• Investigate and resolve performance, accessibility and stability issues across the application.

Who you are  

• Depth of knowledge in TypeScript, React and JavaScript, with a track record of building complex web applications.
• Strong understanding of modern front-end architecture, component design and state management.
• Solid grasp of web fundamentals including HTML, CSS, browser APIs and responsive design.
• Experience integrating with RESTful and/or GraphQL APIs.
• Experience with automated testing (unit, integration, end-to-end) and CI/CD pipelines.
• Strong understanding of web performance optimisation and debugging.
• A willingness to T-shape and grow into adjacent areas such as Java microservices or app engineering. Good collaboration and communication skills, with experience mentoring others.
• Existing exposure to Java microservices or backend development.
• Experience with app or cross-platform development (e.g. React Native).
• Experience with server-side rendering or modern frameworks (e.g. Next.js, Remix).
• Experience using AI-assisted development tools (e.g. code generation, review or testing assistants) in a production setting.
• Familiarity with accessibility standards (WCAG) and building inclusive interfaces.
• Exposure to design systems and component libraries.
• Experience with analytics, monitoring and observability tooling.

Worried that you don’t meet all the desired criteria exactly?
We know that everyone is unique, with multiple aspects to their identity and different experiences behind them. We are passionate about Inclusion for All and creating a workplace where everyone can thrive, whatever their personal or professional background. If you’re excited about this role but your experience doesn’t align exactly with every part of the job description, we encourage you to apply as you may be the right candidate for this role or another role, and our recruitment team can help you see how your skills fit in.

What we offer
We care about our people’s success by offering great pay, bonuses, up to 28 days off plus bank holidays, and paid time for charity work. You can personalise our benefits for you and your family, like discounts, vouchers, a pension plan and loads more. We help with your career through our amazing learning tools and top-notch parental leave policies.
Need to Know
We are regulated by the Financial Conduct Authority and all offers of employment for this role are subject to background checks, including criminal (DBS) and financial checks to meet the regulators standards.
If you require any reasonable adjustments or have an accessibility request as part of your recruitment journey, for example, extended time or breaks in between online assessments, a sign language interpreter, or assistive technology, please refer to the Accessibility section of our Careers website ( ) for guidance.
We use AI in different parts of our business to boost innovation, improve efficiency, and create new opportunities. We know many candidates use AI to fine-tune their CVs or prepare for interviews, but what we really care about is your unique experiences and achievements.
During the interview, we want you to rely on your own knowledge and skills to show us who you really are—your personality, creativity, and abilities. Above all, we’re looking for authenticity and can’t wait to get to know the real you.

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