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# Enterprise Security Architect

- **Company:** Responsibilitiesdefine
- **Location:** Manchester, 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, Zero Trust Network Access, Sherwood Applied Business Security Architecture, Security Information and Event Management, Wireless Networks, Network Switches, Archimate, Togaf, SDN Network, OSS/BSS, Multiaccess Edge Computing
- **Published:** June 20, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/x/39380303/

## About the Role

Essential ExperienceEnterprise Security Architecture experience within telecoms, mobile networks or critical national infrastructureStrong understanding of 4G/5G core, RAN, IMS/signalling, OSS/BSS, NFV/SDN, telecom APIs and interconnect securityStrong AWS cloud security architecture experienceKnowledge of Zero Trust, identity security, encryption, SIEM/SOC integration and network segmentationExperience with telecoms security standards and regulations, including GSMA, NCSC, ISO 27001, NIS/NIS2 and GDPRStrong stakeholder engagement and senior-level communication skills

## Description

We're looking for an SC Cleared Enterprise Security Architect to support a major secure telecoms programme across mobile network, enterprise IT and cloud environments.
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.
Key ResponsibilitiesDefine and maintain enterprise security architecture across telecoms and enterprise IT systemsDevelop target-state security architectures aligned to business, regulatory and operational requirementsApply TOGAF, SABSA and ArchiMate across architecture artefacts and governanceDesign secure AWS, hybrid and cloud-native architecturesConduct threat modelling, risk assessments and security design reviewsDefine security patterns, standards and reference architecturesSupport assurance, governance, audit and secure-by-design deliveryCollaborate with engineering, operations, risk, compliance and vendor teams


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