Microsoft Certified: Networking (routing/switching, SD-WAN) given the centrality of hybrid connectivity to this role. Data platform and analytics services across the hyperscalers (data lakes, warehousing, streaming).AI/ML cloud services, given the growing overlap between cloud migration and AI platform enablement. Navigates multi-vendor, multi-cloud complexity confidently, translating it into a clear, risk-managed migration roadmap for clients. Communicates cloud strategy and migration risk clearly to both hands-on engineering teams and infrastructure leadership. Comfortable owning migration cutover windows and the associated risk management. Job RequirementsJob DescriptionEnterprise Architect — Cloud (AWS / Azure / GCP)Multi-Cloud, Hybrid & On-Premises Migration ArchitecturePractice AreaEnterprise Architecture — Cloud & MigrationReports ToManager, ES&ALevelEnterprise ArchitectLocationRemote / Client site as requiredTravelUp to 30%, dependent on engagement portfolioRole SummaryWorld Wide Technology is looking for a deeply technical Enterprise Architect who specialises in cloud and is genuinely fluent across AWS, Azure, and GCP, and equally comfortable designing the hybrid architectures and migration programmes that move clients from on-premises infrastructure into the cloud, and operate confidently in between. The successful candidate will own the technical delivery of cloud transformation engagements end to end - landing zone design, migration strategy and execution, hybrid connectivity, security, and cost governance acting as the single point of technical accountability from design through to go-live. While broad, credible depth across hyperscalers and migration methodology is the core requirement, WWT engagements regularly extend into adjacent domains - networking, virtualization, security, and data and experience in these areas is a genuine advantage for this role. Architect multi-cloud solutions spanning AWS, Azure, and GCP across compute, storage, networking, and identity, selecting the right platform and services for each workload. Lead migration strategy and execution for on-premises to cloud programmes: workload assessment against the 6 R's (rehost, replatform, repurchase, refactor, retire, retain), dependency mapping, wave planning, and low-downtime cutover. Design hybrid cloud architectures connecting on-premises data centres to cloud environments, including dedicated connectivity, hybrid identity, and hybrid DNS/name resolution. Define cloud landing zone and foundation architectures: multi-account/subscription/project strategy, guardrails, and policy-as-code. Advise clients on cloud economics and FinOps: cost visibility, commitment-based discounting, and rightsizing strategy. Define cloud security architecture: identity federation, network segmentation, encryption, and compliance alignment across all three hyperscalers. 5+ years working across multiple hyperscale cloud platforms, with demonstrated depth in at least two of AWS, Azure, and GCP and strong working knowledge of the third. AWS (Expert Level)Core services: Experience or knowledge of AWS Outpost. AWS Control Tower and Organizations for multi-account governance. Networking: Transit Gateway, Direct Connect, and VPC peering/segmentation design. Application Migration Service (MGN), Database Migration Service (DMS), and Application Discovery Service. Virtual Machines, Virtual Network, Storage, Entra ID (Azure AD), and Well-Architected Framework application. Networking: ExpressRoute and Virtual WAN for hybrid and multi-region connectivity. Resource Manager hierarchy and Organization Policy design. Networking: Cloud Interconnect and hybrid connectivity design. Migrate to Virtual Machines for workload migration. Migration & ModernizationDeep working knowledge of migration assessment methodology (the 6 R's) and the tooling used to apply itExperience building application dependency maps and translating them into realistic, risk-managed migration wave plans. Data migration strategy for both online (minimal downtime, replication-based) and offline (bulk transfer) approaches. Hands-on experience leading cutover events for production workloads, including rollback planning. Hybrid Cloud ArchitectureDesign of dedicated hybrid connectivity: Hybrid identity architecture: Hybrid DNS and name resolution design across on-premises and multi-cloud environments. Experience with VMware-on-cloud bridge technologies (VMware Cloud on AWS, Azure VMware Solution, Google Cloud VMware Engine) as a migration and coexistence strategy. Workload placement strategy for organisations operating a genuinely long-term hybrid estate, not just a transitional one. Landing Zone, Governance & AutomationMulti-account/subscription/project strategy design and the guardrails (SCPs, Azure Policy, GCP Organization Policy) that enforce it. Security & ComplianceIdentity federation and zero trust principles applied consistently across AWS, Azure, and GCP.Network security design: security groups/NSGs, cloud-native firewalls, and web application firewalls. FinOps & Cost OptimisationPractical experience with cost visibility and management tooling (Cost Explorer, Azure Cost Management, GCP Billing reports).Commitment-based discount strategy: reserved instances, savings plans, and committed use discounts. Experience producing and maintaining architecture decision records (ADRs), design standards, and reference architectures that are actively enforced through ARB/TDA governance. Comfortable presenting and defending architecture decisions to senior client governance bodies, including constructively challenging non-compliant or high-risk designs. able to flex between deep technical detail and C-suite framing on cloud strategy and migration risk.
Enterprise Architect - Security Architecture in London employer: World Wide Technology
World Wide Technology is an exceptional employer, offering a dynamic work culture that fosters innovation and collaboration in the heart of London. With a strong focus on employee growth, you will have access to extensive training and development opportunities while working alongside industry leaders in cloud and AI transformation. The company's commitment to diversity and inclusion, coupled with its strategic partnerships, ensures that you will be part of meaningful projects that drive real change in the financial services sector.
