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# Enterprise Security Architect

- **Company:** SR2
- **Location:** London, UK
- **Contract:** Permanent contract
- **Skills:** 4G (Telecommunication), Application Programming Interfaces (APIs), Amazon Web Services, Cloud Engineering, Cyber Security, Identity and Access Management, Network Functions Virtualization, Network Segmentation, Zero Trust Network Access, Sherwood Applied Business Security Architecture, Security Information and Event Management, Wireless Networks, Archimate, Togaf, Information Technology, SDN Network, OSS/BSS, Multiaccess Edge Computing
- **Published:** July 10, 2026
- **Apply:** https://find.jobs/jobs-near-me/apply/ats-redirect/?id=2865359086-2

## About the Role

* Enterprise Security Architecture experience within telecoms, mobile networks or critical national infrastructure
 * Strong understanding of 4G/5G core, RAN, IMS/signalling, OSS/BSS, NFV/SDN, telecom APIs and interconnect security
 * Strong AWS cloud security architecture experience
 * Knowledge of Zero Trust, identity security, encryption, SIEM/SOC integration and network segmentation
 * Experience with telecoms security standards and regulations, including GSMA, NCSC, ISO 27001, NIS/NIS2 and GDPR
 * Strong stakeholder engagement and senior-level communication skills

## Description

You'll help define and maintain security architecture across 4G/5G core, RAN, OSS/BSS, AWS, SDN/NFV, Open RAN, edge computing and cloud migration workstreams, ensuring designs are secure, compliant and aligned to programme objectives., * Define and maintain enterprise security architecture across telecoms and enterprise IT systems

 * Develop target-state security architectures aligned to business, regulatory and operational requirements
 * Apply TOGAF, SABSA and ArchiMate across architecture artefacts and governance
 * Design secure AWS, hybrid and cloud-native architectures
 * Conduct threat modelling, risk assessments and security design reviews
 * Define security patterns, standards and reference architectures
 * Support assurance, governance, audit and secure-by-design delivery
 * Collaborate with engineering, operations, risk, compliance and vendor teams


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