VodafoneThree - Pre-Sales Technical Design Authority (Defence)

Job Description

Location: Farnborough - 5 days a week onsite
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 to obtain a UK Developed Vetting (DV) clearance.

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 Vodafone Business Technology Solutions team, where we support businesses of all sizes with world-class technology solutions. We design and develop our Fixed Line solutions, drive efficiency through automation and AI, and implement it all directly with our customers.

What you’ll do

As part of the VBSE (Vodafone Business Security Enhanced) Platforms team, this role sits at the heart of how we shape, validate and deliver secure, high performing platforms for our customers. Working closely with sales, solution consultants, and our platform design and architecture teams, the Pre Sales Technical Design Authority ensures every solution is not only compelling on paper but fully deliverable, supportable, and ready for seamless transition into live service. You’ll bring technical leadership, design governance and customer confidence to every stage of the solution lifecycle.

• Own the technical design direction across multiple customer projects, acting as the Technical Design Authority from initial concept through to acceptance into service.
• Create and review High Level and Low Level Designs, collaborating with pre sales, engineering and architecture teams to ensure clarity, feasibility and alignment with customer outcomes.
• Champion compliance and best practice, ensuring all designs meet VodafoneThree standards for security, resilience, operations and architecture.
• Act as the senior technical interface, providing trusted guidance between customer facing teams, delivery, engineering and operations to ensure confidence in both the solution and the implementation approach.
• Support platform teams through build, test and deployment, resolving design related issues, managing deviations and ensuring the final solution remains aligned to the agreed architecture.

Who you are

• Proven experience in a Technical Design Authority, Technical Design, or Senior Systems Engineer role within complex Networks, IT and/or managed service environments.
• Current DV clearance or eligibility and willingness to undergo DV vetting
• Strong background in Network infrastructure and platforms, having worked with vendors such as Cisco, Juniper & Fortinet
• Experience designing and assuring customer facing solutions in highly-secure environments.
• Strong stakeholder management skills with the ability to challenge constructively and influence at senior levels
• Have a proven track record in Networks and Security with Experience delivering customer facing solutions requiring formal acceptance and sign off
• Be proactive, self-motivated, and be able to keep up with the rapid pace of technology evolution
• Demonstrate Strong stakeholder management skills, with the ability to communicate clearly with technical and non technical audiences.

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 (https://careers.vodafone.com/uk/reasonable-adjustments/) 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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