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Principal Platform Engineer – Customer Platforms
Location: London – two days per week
Salary: Up to £140,000
We’re working with an established global enterprise software company that is building a new cloud platform for highly regulated customers.
This is a hands-on senior engineering role combining platform architecture, product engineering and customer delivery. You’ll help shape the platform from its earliest stages, working with enterprise clients and internal engineering teams to solve complex cloud deployment, security and operational challenges.
What you’ll be doing
- Designing and building secure, scalable AWS platform architecture.
- Developing Kubernetes/EKS infrastructure using Terraform, Helm and GitOps tooling.
- Defining approaches to identity, networking, secrets, observability, upgrades and security.
- Working directly with enterprise customers to understand their technical and regulatory requirements.
- Translating customer constraints into reusable platform capabilities.
- Owning delivery from initial architecture and proof of concept through to production.
- Creating repeatable deployment and onboarding patterns for future customers.
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What we’re looking for
- Strong experience as a Principal, Lead or Staff-level Platform/Cloud Engineer.
- Deep hands-on knowledge of AWS, Kubernetes and EKS.
- Strong Terraform and GitOps experience, ideally including Helm and Argo CD.
- Experience designing and delivering greenfield platforms from 0–1.
- A background working directly with enterprise customers and technical stakeholders.
- Strong knowledge of cloud security, IAM, networking and regulated environments.
- Comfortable remaining hands-on with engineering, automation and troubleshooting.
- Python or Go experience would be beneficial.
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This is an opportunity to play a major role in shaping a strategically important platform, solving complex cloud engineering problems while remaining close to both the technology and its customers.
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