Fractional AWS platform engineering for startups and scale-ups
I help companies build, run, and govern AWS platforms — from first account to production at scale.
| Governance & Security | Multi-account structure, SCPs, IAM, permission boundaries, Identity Centre (SSO), TEAM elevated access |
| CI/CD & IaC | CloudFormation, CDK, SAM, CodePipeline, cross-account deployments, self-service pipeline scaffolding |
| Serverless & Orchestration | Lambda, Step Functions, EventBridge, SQS, API Gateway — desktop to production |
| Containers & ML Inference | ECS, ECR, GPU workloads, model deployment, scaling, SageMaker |
| Observability | CloudWatch dashboards, alarms, Slack integration, distributed tracing, incident response |
| FinOps & Cost | Budgets, cost allocation, right-sizing, per-unit cost tracking, Cloud Intelligence Dashboards |
| Build It, Run It | I don't just architect — I implement, deploy, monitor, and operate. Fractional platform lead for teams that need it. |
Designed the cloud architecture and backend infrastructure for a multi-region GPU inference platform. Responsible for orchestration, scaling, observability, and CI/CD across multiple AWS accounts. Collaborated with application developers and ML engineers.
Stack: Step Functions, ECS (GPU), SQS FIFO, API Gateway, SAM, CodePipeline, CloudWatch, EventBridge
Built a pipeline bootstrapper that generates complete cross-account CI/CD pipelines from config — including IAM roles, permission boundaries, deployment stages, and monitoring. 30+ pipelines running across a 20-account AWS Organisation.
Stack: CodePipeline, CloudFormation, Python, cross-account IAM, permission boundaries, StackSets
📝 Blog and detailed case studies coming soon.
I'm R. Cunningham — 20+ years in software engineering, the last several focused on AWS platform architecture. I work as a fractional cloud platform lead, helping small teams get production-grade AWS infrastructure without hiring a full platform team. Based in Belfast, working with companies in the US and UK.
AWS Certified Solutions Architect – Professional | Security – Specialty
Email: ronan@cavehillcloud.com
LinkedIn: linkedin.com/in/rcunningham