Flagstone

Flagstone

London

Senior Cloud Engineer

Contract£72,000 - 97,000 per yearavant-hierUnited Kingdom
IT

Job Description

Salary: £72,000 - 97,000 per year

Requirements:
  • We are looking for a senior cloud or infrastructure engineer with credible experience across Azure platform delivery, networking, and infrastructure-as-code.
  • We need hands-on Azure platform experience across landing zones, networking, identity, and storage.
  • We need practical infrastructure-as-code experience with Terraform and/or Bicep in a production context, including migration between them.
  • We need practical experience with hub-and-spoke networking, private endpoints, DNS integration, and hybrid connectivity.
  • We need experience building end-to-end CI/CD pipelines with automated security and compliance gates.
  • We need a solid grasp of Entra ID, RBAC, managed identities, and the Azure subscription and management group hierarchy.
  • We need someone comfortable owning both migration delivery and the operational support that runs alongside it.
  • We need the ability to communicate design decisions and trade-offs clearly through engineering briefs and architectural decision records.
  • We value a growth mindset and genuine curiosity to keep learning.
  • Relevant Azure certifications such as AZ-104 or AZ-305 are preferred.
  • Experience hosting AI workloads, including AI gateways, observability, and model access through AWS Bedrock, is preferred.
  • Experience building golden paths or internal developer platforms is preferred.
  • Experience working in a similar fintech or financial services environment is preferred.
Responsibilities:
  • Migrate live services onto our new Azure cloud with no disruption to current production systems.
  • Absorb day-to-day operational support and incident response to relieve pressure on the permanent team and keep migration cadence up.
  • Author and maintain production-grade Terraform and Bicep modules, including testing, validation, versioning, and automated drift detection and remediation.
  • Design landing zones, hub-and-spoke network architectures, private endpoint patterns, and hybrid connectivity through ExpressRoute and VPN gateways.
  • Build the shared integration front door that lets partners and AI tooling integrate quickly and safely.
  • Define and roll out golden paths that cut delivery cost and speed up our engineering squads.
  • Stand up our AI platform foundations, including an AI gateway, an observability stack, and hosting for AI tools such as Flagstone Concierge, with model access through AWS Bedrock.
  • Build and maintain infrastructure pipelines with security scanning, plan validation, and approval gates.
  • Implement RBAC using Entra ID, managed identities, and service principals.
Technologies:
  • AI
  • AWS
  • Azure
  • CI/CD
  • Cloud
  • Support
  • Network
  • RBAC
  • Security
  • Terraform
  • VPN
  • DevOps

More:

We are Flagstone, an online savings platform reinventing how individuals, businesses, and charities manage, protect, and grow their cash. We are a diverse, collaborative, and profitable business where smart people do their best work, and our culture of kindness, respect, and growth is a key part of our competitive advantage. Our Cloud Engineering team builds and runs our new Azure cloud, which underpins our security tooling, observability, and AI hosting. This is a contract role based in our London office, working in a hybrid setup within our Engineering department. We welcome applicants from all backgrounds and encourage everyone to apply if the role could be a fit.

last updated 34 week of 2026

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About Flagstone

Flagstone

Flagstone

London

IT

Skills & Technologies

GoAWSAzureTerraformCI/CDAIDevOpsUI

Inferred from job description

Salary Insight

£84,500

This role

£75,000

UK median

This salary is 13% above the UK median for Senior roles75,000/yr).

Based on 2024–2025 UK technology sector benchmarks

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