Security architect Work, Jobs in Witney, Oxf (with Salaries)

This is a critical security leadership role focused on designing, implementing, and maintaining comprehensive security architectures for telecommunications networks. The role emphasizes UK Telecommunications Security Act (TSA) compliance, network node security, and risk mitigation across complex telecom infrastructures , including secure protocol interfaces and API exposure (HTTPS/SBI, SIP/signaling protocols), and leading high-performing security teams.

Key Responsibilities

Security Architecture Design
UK TSA Compliance
Network Node Security
Protocol & Interface Security
Threat Landscape Management
Risk Assessment & Mitigation
5G/6G Security
Team Leadership & Delivery

Your Profile

8-12+ years in telecommunications network security architecture
UK TSA & Regulatory Compliance:
Telecom Network Architecture:
Telecom Security Requirements:
- Base stations and RAN infrastructure
- Core network elements and signaling
- Network management and OSS/BSS platforms
- Network interfaces and interdomain connections
- 4+ years experience designing security for:
- Expertise in telecom-specific threats and attacks (SS7 exploitation, signaling attacks, RAN threats)
Security Architecture:
- Zero-trust architecture design and implementation
- Cryptographic standards and PKI management
- Identity and access management (IAM) in telecom context
- Security monitoring and SIEM implementations
Vendor & Risk Management:

Certifications

Cyber Architecture: ISC2 CC (free training + certification) => CISSP (requires 5+ years experience in cyber) => ISSAP (requires CISSP and 2+ years experience)
Focus on Telecom Cloud:

- - ISC2 CCSP
  - Nokia Bell Labs Professional 5G Distributed Cloud Network
Focus on Telecom Security:
- - Nokia Bell Labs 5G Associate
  - Nokia Bell Labs Professional 5G Secured Networks
Cyber governance, risk and compliance:
- ISC2 CGRC, CSIM
- ISO 27001 Lead Implementer, ISO 27001 Lead Auditor

If you're excited about this role but don’t meet every requirement, we stillencourage you to apply, your unique experience could be just what we need.

Make it real – what does it mean for you?

Exposure to top global companies working withCapgemini (145 of the Fortune 500 companies)
Open access to digital learning platforms
Active employee networks promoting diversity, equity and inclusion like OutFront, CapAbility or Women@Capgemini

Capgemini is proud to be a Disability Confident Employer (Level 2) under the UK Government’s Disability Confident scheme. As part of our commitment to inclusive recruitment, we will offer an interview to all candidates who:

Declare they have a disability, and
Meet the minimum essential criteria for the role.
Please opt in during the application process.

Capgemini. Make it real.

Need to know

All roles will require a level of security clearance; BPSS OR Security Clearance OR Developed Vetting.
Location: This is a permanent role with Capgemini, offering a hybrid working model. Our clients are primarily based along the M4 corridor (including Newbury, Reading, and Slough), and occasional travel to these locations will be required.
You can bring your whole self to work. At Capgemini building an inclusivefuture is part of everyday life and will be part of your working reality. We havebuilt a representative and welcoming environment, for everyone.

About Capgemini

Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organisations and make it real with AI, technology and people. With our strong heritage of nearly 60 years, we are a responsible and diverse group of over 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations. The Group reported 2025 global revenues of €22.5 billion.

Make it real | www.capgemini.com

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