Lead AWS Platform Engineer

Caspian One; Sheffield; On-site; GBP 85,000 - 110,000; Full time

Job summary

Caspian One in the United Kingdom is seeking a Senior AWS Platform Engineer to join a high-performing platform engineering team. You will design, build and operate large-scale AWS and Kubernetes platforms that support critical production workloads, collaborating with engineers, architects and delivery stakeholders to drive scalable, secure infrastructure.

This role emphasizes Infrastructure as Code, automation, multi-tenant security, observability and CI/CD integration, with hands-on work on AWS

Qualifications

• Extensive hands-on experience with Kubernetes and AWS EKS in enterprise environments.
• Proven Terraform and Infrastructure as Code expertise.
• Experience building automation and supporting CI/CD pipelines.
• Strong troubleshooting and problem-solving skills.

Responsibilities

• Build, operate and enhance large-scale AWS EKS/Kubernetes platforms.
• Develop cloud platform capabilities using Infrastructure as Code.
• Design automation for deployment, management and scalability.
• Support secure multi-tenant environments with IAM and secrets management.
• Improve resilience, observability, monitoring and alerting.
• Contribute to CI/CD pipelines and modern delivery practices.
• Own technical initiatives from design to production.
• Collaborate with engineers, architects, product teams and delivery stakeholders.
• Evolve shared cloud platform strategy.
• Ensure production services are highly available, secure and scalable.
• Experience with monitoring, observability and platform reliability engineering.
• Experience supporting database, caching or platform services.

Skills

Strong communication

Stakeholder management

Troubleshooting

Multi-tenant platforms experience

Problem solving

Tools

AWS EKS

Terraform

Kubernetes

Argo CD

Istio

Docker

Kong API Gateway

Jira

Confluence

Job description

We're partnering with a leading global organisation undergoing a major cloud transformation programme and are seeking a Senior AWS Platform Engineer to join a high-performing platform engineering team.

This is a senior, hands-on engineering role focused on building, scaling and operating enterprise Kubernetes platforms that support critical production services. You'll play a key role in the evolution of a shared cloud platform, helping to deliver secure, resilient and highly automated infrastructure used by thousands of applications and engineering teams.

This opportunity is ideal for an engineer who enjoys solving complex platform challenges and wants to work at significant scale within a cloud-native environment.

The Role

As a Senior AWS Platform Engineer, you'll be responsible for designing, building and enhancing large-scale AWS and Kubernetes platforms that support business-critical workloads.

Working closely with engineers, architects, product teams and delivery stakeholders, you'll help deliver platform capabilities that improve scalability, reliability, security and developer experience across the wider technology estate.

Key Responsibilities

• Build, operate and enhance large-scale AWS EKS/Kubernetes platforms.
• Develop and deliver cloud platform capabilities using Infrastructure as Code.
• Design and implement automation to improve platform deployment, management and scalability.
• Support secure multi-tenant environments through effective IAM, authentication and secrets management practices.
• Improve platform resilience, observability, monitoring and alerting capabilities.
• Contribute to CI/CD pipelines and modern software delivery practices.
• Take ownership of technical initiatives from research and design through to production release.
• Collaborate with engineers, architects, product teams and delivery stakeholders.
• Support the ongoing evolution of a shared cloud platform strategy.
• Ensure critical production services remain highly available, secure and scalable.
• Extensive hands-on experience with Kubernetes and AWS EKS in enterprise environments.
• Strong experience designing, building and operating AWS cloud platforms.
• Proven expertise using Terraform and Infrastructure as Code methodologies.
• Experience building automation and supporting CI/CD pipelines.
• Strong understanding of highly available, resilient production systems.
• Experience with monitoring, observability and platform reliability engineering.
• Solid knowledge of IAM, access controls, authentication and secrets management.
• Experience supporting multi-tenant platforms in large-scale environments.
• Strong troubleshooting and problem-solving skills.
• Excellent communication and stakeholder management abilities.
• AWS Lambda.
• Argo CD or similar GitOps tooling.
• Helm and Docker.
• Service mesh technologies such as Istio.
• API Gateway technologies such as Kong.
• Jira and Confluence.
• Experience supporting database, caching or platform services.

Why Apply?

• Opportunity to contribute to a large-scale cloud and Kubernetes transformation.
• Work on highly complex engineering challenges involving scale, resilience, security and automation.
• Exposure to enterprise-level AWS and Kubernetes environments supporting critical services.
• Ownership of significant platform engineering initiatives from design through to delivery.
• Collaborative environment with experienced cloud, platform and infrastructure engineers.
• Opportunity to influence the future direction of a strategic cloud platform.