At a Glance
- Tasks: Shape secure architecture for mobile networks and cloud environments.
- Company: Leading telecoms firm with a focus on innovation and security.
- Benefits: Competitive daily rate, hybrid working model, and long-term contract.
- Other info: Opportunity to work with cutting-edge technologies in a dynamic environment.
- Why this job: Join a major secure telecoms programme and make a real impact.
- Qualifications: Experience in enterprise security architecture and strong communication skills.
The predicted salary is between 60000 - 80000 £ per year.
Salary £? - ? per year
Requirements
- Active SC Clearance required
- 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
Responsibilities
- 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
Technologies
- AWS
- Architect
- ArchiMate
- Cloud Support
- Mobile Network
- OSS
- Security
- TOGAF
We are hiring for a long‑term Enterprise Security Architect role on a major secure telecoms programme. This is an inside IR35 contract paying £550 to £600 per day, with a hybrid working model requiring two days a week in London or Bristol. We are looking for someone to help shape secure architecture across mobile network, enterprise IT and cloud environments, covering 4G/5G core, RAN, OSS/BSS, AWS, SDN/NFV, Open RAN, edge computing and cloud migration workstreams.
Enterprise Security Architect - London employer: Sivara GmbH
Join a forward-thinking organisation that prioritises innovation and security in the telecoms sector. With a strong commitment to employee development, we offer a collaborative work culture that encourages professional growth through hands-on experience with cutting-edge technologies. Our London location provides a vibrant environment, complemented by a hybrid working model that promotes work-life balance while engaging with industry leaders on critical national infrastructure projects.
