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Gethin Llewellyn WilliamsGL

Gethin Llewellyn Williams

Cybersecurity & Security Architecture Consultant

€984/day
Edinburgh, GB
8-15 years

Average response time: 1 hour

About Gethin

Experienced security architect and consultant with deep technical knowledge and expertise in cloud security (Azure, AWS, Oracle Cloud Infrastructure), security compliance standards, security engineering, risk management, and threat intelligence. Proven ability to deliver security compliance and share industry best practices across finance, public sector, facilities & services, retail, and defence industries.
  • English

    Native or bilingual

Can work on-site
Edinburgh (up to 50km), Cardiff (up to 50km), Swansea (up to 50km)

Experience

  • Trikog Cyber Security
    Cybersecurity Consultant
    September 2021 - Today (4 years and 9 months)
    Contractual security review & architecture alignment: providing expert advice to SMEs on satisfying client security requirements and meeting compliance obligations (eg. ISO 27001, Cyber Essentials, CAF).

  • Ahold Delhaize
    Cloud Security Consultant
    RETAIL (LARGE RETAILERS)
    April 2022 - December 2024 (2 years and 8 months)
    • Security oversight for cloud infrastructure and central engineering services.
    • Security design and review for two re-architecture cycles of the core cloud hub and landing zone infrastructure in Azure.
    • Security design for reusable building blocks to standardise and secure the majority of Azure resources used in the organisation.
    • Security design review for the introduction of Oracle Cloud Infrastructure, Oracle Exadata database hosting, and secure migration of legacy services from a managed on-premises datacentre to an Oracle Cloud VMware Service deployment.
    • Security strategy and alignment in global and regional architecture forums.
  • Sodexo
    Cybersecurity Consultant
    September 2021 - April 2022 (7 months)
    • Azure subject matter expertise (including security architecture, design and configuration) for secure, scalable and resilient cloud architectures.
    • Defining authorisation, granular access control, and data encryption/masking technologies to improve data access control, and enhancing security logging, monitoring, and alerting.
    • Development of secure designs for ADLS Gen 2 data lakes.
    • Security assessments of Azure architectures and services and development of authorised security configurations and secure design patterns for the architecture library.

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Education

  • BSc (1st Class Hons) Intelligence and Information Security Systems
    Staffordshire University
    2016

Certifications

  • Microsoft Certified Cybersecurity Architect Expert
    Microsoft
    2025
  • CISSP – Certified Information Systems Security Professional
    ISC²
    2017

Skill set

Categories