Company Description
VodafoneThree: AI Engineer
Location: Newbury / London + *Hybrid working
Working Hours: Full time 37.5 hours per week – Mon – Fri
- 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. 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 us at the heart of our business in Corporate, one of the central support functions that underpin our business and keep us moving forward. We provide centralised support, expertise and guidance across our UK and Group operations, continuing to build on our success and trailblazing the way to our next stage of digital growth.
Job Description
In this hands‑on AI Engineering role you will build production‑grade AI products within a highly specialised environment, working alongside Senior and Principal AI Engineers who set the architectural direction while you focus on building features, integrating models, and shipping working software.
You will join the AI & Data Science team at VodafoneThree to build intelligent internal applications that drive operational efficiency and reduce costs across the organisation. You will develop practical skills in retrieval‑augmented generation, agentic patterns, and LLM application design, making this an ideal first step for a technically inclined individual seeking real AI engineering exposure.
Key Roles & Responsibilities
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Develop and test AI-powered application features in line with the product roadmap
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Implement retrieval-augmented generation (RAG) systems, prompt templates, and conversational interfaces
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Build and maintain API integrations between AI models and application layers
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Write clean, tested, and maintainable code following team engineering standards and best practices
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Contribute to prompt engineering, guardrail implementation, and content filtering to ensure safe and reliable AI interactions
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Support deployment and release processes for AI products, collaborating with the team on production readiness
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Monitor application performance, identify bottlenecks, and respond to production issues
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Participate in code reviews and contribute to shared technical documentation and reusable components
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Work with the UX Manager to implement intuitive user interfaces and gather user feedback
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Support governance and compliance requirements for AI product releases
Qualifications
Job Requirements, Knowledge & Experience
Personal Github projects will be considered for individuals looking to move into the field, but they must be at a high standard, this role is expected to be a builder of AI Products, not just a user of AI.
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Minimum Bachelors or MSc in Computer Science, Software Engineering or other relevant STEM field relating to AI development
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Building and shipping AI-powered applications
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Working knowledge of LLM integration patterns: prompt engineering, RAG, agent frameworks, orchestration tooling
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Production engineering skills: API development, application architecture, integration with existing business systems
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Awareness of non-functional considerations in AI products (latency, cost, safety, observability)
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Ability to operate in a fast-moving tech stack, evaluating new tools pragmatically and managing technical debt
Additional Information
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.
Closing Date: 31st July 2026
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.
We believe everyone should have the opportunity to interview for a role that matches their skills. In collaboration with our Talent, Diversity & Inclusion teams and our employee-led DEI Networks, we identified a range of reasonable adjustments to help you feel comfortable and perform at your best self during the interview process. 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 contact your recruiter directly or email [email protected] 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.
#VodafoneThree
