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Job Title: GCP Architect
6 month contract // Inside IR35 // Onsite London // Must have GCP experience
Job Description
This GCP Architect role supports a strategic cloud transformation programme that is migrating critical workloads onto a cloud-native Google Cloud Platform (GCP) infrastructure. You will act as the primary authority for architecture design and documentation, owning the production of the High Level Design Document (HLDD), driving governance approvals, and supporting the platform through Permit to Operate stages to General Availability. This is an output-driven contract position that requires deep GCP expertise and experience in complex, regulated environments.
Responsibilities
- Lead the end-to-end production of the GCP High Level Design Document (HLDD), covering network topology, landing zone architecture, identity and access management (IAM), data platform services, compute, security controls, and operational tooling.
- Act as the primary architecture design and documentation authority for the programme, ensuring all designs are robust, compliant, and aligned with enterprise standards.
- Contribute to platform architecture design decisions in collaboration with platform engineers, enterprise architects, security teams, and risk stakeholders.
- Maintain and continuously update the Architecture Design Register, ensuring all design decisions, changes, and dependencies are clearly documented and traceable.
- Prepare structured submission packs for Architecture Review Boards and Design Authority forums, presenting and defending design proposals as required.
- Own the design workstream across all Permit to Operate gates, ensuring all architectural requirements and controls are clearly defined and evidenced.
- Produce and maintain detailed design diagrams and supporting artefacts to communicate architecture clearly to technical and non-technical stakeholders.
- Ensure all architecture documentation and governance evidence is complete, reviewed, and approved ahead of each programme milestone.
- Support the platform through the full lifecycle from initial design through governance approvals to General Availability, addressing design-related queries and risks.
- Produce a comprehensive General Availability readiness report, confirming that the platform design, controls, and documentation meet all required standards.
- Coordinate the handover of architecture artefacts and knowledge to operations teams at General Availability, ensuring a smooth transition into steady-state support.
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Essential Skills
- Extensive, hands-on experience with Google Cloud Platform (GCP) in complex, regulated environments.
- Proven track record in designing and documenting cloud-native architectures at enterprise scale.
- Strong expertise in GCP landing zone design, including network topology, segmentation, and connectivity patterns.
- Deep knowledge of GCP Identity and Access Management (IAM), including roles, policies, and access control best practices.
- Experience defining and implementing security controls and guardrails within GCP environments.
- Demonstrable experience producing High Level Design Documents (HLDD) and other formal architecture artefacts.
- Strong background in navigating architecture governance processes, including Architecture Review Boards and Design Authorities.
- Ability to lead a design workstream end-to-end, from initial concept through to production readiness and General Availability.
- Excellent written communication skills for clear, structured documentation and governance submissions.
- Strong stakeholder management skills, with the ability to collaborate effectively with engineers, architects, security, and risk teams.
Additional Skills & Qualifications
- Experience working on large-scale transformation or modernisation programmes.
- Background in designing data platform services and compute workloads on GCP.
- Familiarity with operational tooling and observability solutions in cloud environments.
- Experience working within formal Permit to Operate or similar production readiness frameworks.
- Ability to produce clear, visually effective design diagrams for diverse audiences.
- Comfortable operating in an output-driven contract role with clear deliverables and deadlines.
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Location
London, UK
Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western Road, Bracknell, RG12 1RT, United Kingdom. No. 2876353. Allegis Group Limited operates as an Employment Business and Employment Agency as set out in the Conduct of Employment Agencies and Employment Businesses Regulations 2003. TEKsystems is a company within the Allegis Group network of companies (collectively referred to as "Allegis Group"). Aerotek, Aston Carter, EASi, Talentis Solutions, TEKsystems, Stamford Consultants and The Stamford Group are Allegis Group brands. If you apply, your personal data will be processed as described in the Allegis Group Online Privacy Notice available at https://www.allegisgroup.com/en-gb/privacy-notices.
To access our Online Privacy Notice, which explains what information we may collect, use, share, and store about you, and describes your rights and choices about this, please go to https://www.allegisgroup.com/en-gb/privacy-notices.
We are part of a global network of companies and as a result, the personal data you provide will be shared within Allegis Group and transferred and processed outside the UK, Switzerland and European Economic Area subject to the protections described in the Allegis Group Online Privacy Notice. We store personal data in the UK, EEA, Switzerland and the USA. If you would like to exercise your privacy rights, please visit the "Contacting Us" section of our Online Privacy Notice at https://www.allegisgroup.com/en-gb/privacy-notices for details on how to contact us. To protect your privacy and security, we may take steps to verify your identity, such as a password and user ID if there is an account associated with your request, or identifying information such as your address or date of birth, before proceeding with your request. If you are resident in the UK, EEA or Switzerland, we will process any access request you make in accordance with our commitments under the UK Data Protection Act, EU-U.S. Privacy Shield or the Swiss-U.S. Privacy Shield.
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