VodafoneThree - SbD Security Architect - Networks

VodafoneThree; Newbury; Hybrid; GBP 75,000 - 110,000; Full time

Benefits offered by this job

Vodafone benefits

Job summary

VodafoneThree in the UK is hiring a Security Architect to embed security by design across its Network estate, ensuring early and proportional controls.

You will lead end-to-end security architectures, influence senior stakeholders, and ensure compliance with TSA, data protection and regulatory frameworks.

This role offers hybrid working, opportunities to shape security across mobile and fixed networks and a path to advanced certifications.

Qualifications

• 7+ years in cyber security with an architecture focus.
• Proven experience delivering cross-domain network security architectures.
• Strong knowledge of security risks, threat modelling, and mitigating controls.
• Deep knowledge of containerised, virtualised and hybrid infrastructure.

Responsibilities

• Embed security into Network systems by design across programmes.
• Provide end-to-end security architecture leadership across VodafoneThree Network estate.
• Protect VodafoneThree from cyber threats while enabling safe digital transformation.

Skills

Cyber security

Network security

Architecture design

Threat modelling

Regulatory compliance

ISO 27001 / NIST

SABSA / TOGAF

Cloud security

Education

SABSA/TOGAF certification

CISSP / CCSP / CCSK

Job description

Location: Newbury + 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.

What you'll do

As a Security Architect within Secure by Design, you will be accountable for embedding security into Network systems by design, ensuring that security is considered early, applied proportionately, and assured consistently across programmes and business as usual change.

You will provide end to end security architecture leadership across VodafoneThree's Network estate, partnering with delivery teams, architects, and senior stakeholders to ensure that solutions are secure, compliant, resilient, and aligned to regulatory and business obligations.

This role plays a critical part in protecting VodafoneThree from persistent cyber threats while enabling safe digital transformation at pace.

Key Outcomes:

• Security is embedded by design across the full lifecycle (discovery, design, build, test, deploy, operate)
• Proportionate, risk-based security controls are defined and implemented efficiently
• Network solutions follow legal, regulatory, and contractual obligations
• Security architecture activity enables delivery, rather than becoming a bottleneck
• Complex designs are assessed, challenged, and approved in line with Secure by Design standards
• VodafoneThree maintains the security posture required to support customer trust, regulatory compliance, and business critical certifications

As a Security Architect in Secure by Design, you will define, document, and assure end to end security architectures that protect the confidentiality, integrity, and availability of VodafoneThree's Network systems.

You will influence senior technical stakeholders to ensure UK security requirements are understood, accepted, and embedded, supporting compliance with TSA, data protection, and other regulatory frameworks.

You will support projects and BAU change across a broad Network landscape, including:

• Mobile Radio Access Networks (2G/4G/5G)
• Core, transport and IP network infrastructure
• Operations Support Systems (OSS) and network management platforms
• Network automation, orchestration and SDN/NFV technologies
• Network security and resilience platforms
• Cloud, edge and virtualised network infrastructure
• Network analytics, assurance and service quality platforms
• Enterprise, IoT and converged fixed/mobile network services

Who you are

• 7+ years' experience in cyber security roles, with strong architecture focus
• Proven experience delivering complex, cross domain Network security architectures
• Strong understanding of security risks, threat modelling, and mitigating controls
• Hands on experience securing systems detailed in the "Scope of Technology" section above
• Deep knowledge of containerised, virtualised and hybrid infrastructure
• Strong knowledge of security and compliance frameworks (ISO 27001, NIST, COBIT, SOC2, ITIL)
• Understanding of regulatory and protocol specification requirements (TSA, 3GPP, IETF)
• Ability to influence senior technical and non-technical stakeholders
• Excellent documentation, communication, and decision-making skills
• Telecommunications industry experience
• SABSA and/or TOGAF architecture qualifications
• CISSP, CCSP/CCSK, and cloud provider certifications
• Experience operating in large, federated or matrixed organisation

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.