VodafoneThree - Senior Designer

Location: Newbury+ Hybrid
Salary: Excellent basic salary plus bonus and Vodafone benefits
Working hours: Full time 37.5 hours per week - Monday to Friday

Security Clearance: This position requires the ability & willingness to undergo and obtain a Secure Vetting (SC) clearance.

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 UK Networks team, where we're continually building and enhancing our network, connecting millions of people and businesses across the country. Be part of the team that makes it all happen - simplifying, automating, and bringing better connectivity than ever before, with giga-fast speed, to our customers.

What you'll do

You'll be at the heart of designing and evolving the fixed voice platforms that underpin critical communication services. Working across technology, operations, suppliers and business teams, you'll shape robust, scalable and future-ready solutions that deliver exceptional customer experiences while driving innovation, efficiency and operational excellence.

• You'll lead the end-to-end design and optimisation of Fixed Voice solutions, ensuring platforms remain resilient, secure and aligned with business objectives.
• You'll create high-quality technical designs and architecture documentation, translating business requirements into practical, scalable solutions.
• You'll collaborate with internal teams, delivery partners and suppliers to introduce new capabilities and enhance existing voice services.
• You'll provide technical leadership and subject matter expertise across Fixed Voice technologies throughout the design, implementation and support lifecycle.
• You'll develop High-Level and Low-Level Designs (HLDs/LLDs), implementation plans and technical documentation that enable successful delivery and ongoing support.
• You'll identify opportunities to improve services through automation, standardisation and process optimisation.
• You'll work closely with key technology partners, cloud providers and suppliers to ensure solutions are delivered to agreed quality and performance standards.
• You'll support testing, validation and technical assurance activities to ensure solutions are deployment-ready and fit for purpose.
• You'll analyse complex technical challenges, contribute to incident and problem resolution, and drive continuous improvement through root-cause analysis.
• You'll participate in governance forums, design reviews and assurance activities, ensuring solutions meet security, regulatory and architectural standards.
• You'll help shape the future of voice technology by contributing to transformation initiatives, technology roadmaps and innovation programmes.

Who you are

• Proven experience designing and delivering telecommunications solutions within complex technology environments.
• Strong expertise in Fixed Voice technologies, including SIP, VoIP, interconnect services and voice network architectures.
• Knowledge of Softswitches, Media Gateways, IMS platforms, Session Border Controllers (SBCs), Intelligent Networks, PBX and IVR solutions.
• Experience producing technical designs, architectures, implementation plans and supporting documentation to a high standard.
• Comfortable translating business requirements into practical technical solutions that balance customer needs, risk, cost and operational efficiency.
• Strong understanding of Telco Cloud technologies, including NFV, SDN and modern virtualised network environments.
• Familiarity with cloud and cloud-native deployment models across on-premises, hybrid and public cloud platforms.
• Skilled at building effective relationships with stakeholders, suppliers, systems integrators and technology partners.
• A collaborative problem solver who can navigate complex technical challenges and deliver successful outcomes across multiple teams.
• Understanding of regulatory, security and operational requirements within telecommunications environments.
• Passion for continuous improvement, innovation and emerging technologies, with a desire to challenge the status quo and drive meaningful change.
• A growth mindset with a commitment to learning, knowledge sharing and helping others succeed in an inclusive and supportive environment.

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.