S
Shaun AWS Cloud · Dublin, IE
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Open to AWS / Cloud Engineering roles

Designing practical AWS architectures for real workloads.

I build and document AWS solutions end-to-end: static sites on S3 + CloudFront, 3-tier VPC apps, and serverless systems with Lambda, API Gateway and DynamoDB. Everything here is actually deployed and cost-aware.

AWS SAA-C03 AWS Developer Associate (in progress) S3 · CloudFront · WAF · CI/CD
View portfolio ↓ Download CV 📄
Focus Cloud architecture & implementation
Location Dublin, Ireland
Stack AWS · TypeScript · React · Node

Selected AWS projects

Each project is deployed on AWS with notes on architecture, trade-offs and operations.

Static site · Edge

AWS Cloud Portfolio (this site)

Static portfolio hosted on S3, fronted by CloudFront and protected with WAF. GitHub → CodePipeline powers CI/CD with cache invalidations and basic monitoring.

S3 website hosting CloudFront + WAF Route 53 CodePipeline
↗ View code 🧾 Architecture notes
VPC · 3-tier

TaskFlow · Classic 3-tier architecture

3-tier app with public web tier, private app tier and RDS in isolated subnets. Covers routing, security groups, NAT vs IGW decisions and a path to serverless.

ALB + EC2 Private subnets RDS (PostgreSQL) SSM Session Manager
↗ View code 🗺 Network diagram
Serverless · API

Serverless Blog & CRM

Blog platform where posts are created via a CRM frontend. API Gateway + Lambda + DynamoDB on the backend, S3 for media and Cognito for auth.

API Gateway Lambda DynamoDB Cognito
↗ View code 🧠 Design decisions

Skills & focus areas

I care about combining clear architecture thinking with hands-on implementation.

Core AWS stack

VPC · Subnets · Routing ALB / NLB EC2 · Auto Scaling RDS · DynamoDB S3 · CloudFront WAF · Shield IAM · Cognito

Modern patterns

Serverless (Lambda) Event-driven (SQS, SNS) Streaming (Kinesis) Document processing (Textract) AI on AWS (Bedrock) Observability (CloudWatch) CI/CD (CodePipeline)

How I work

  • Architecture first Diagram → decisions → build
  • Security Least privilege, no wildcards by default
  • Cost awareness Right-sized, with trade-offs written down
  • Documentation README + diagrams + troubleshooting
  • Tooling GitHub · VS Code · IaC where it helps

Architecture approach

I focus on patterns: separation of tiers, blast radius reduction and realistic DR for the situation.

Patterns I lean on

  • Static + edge S3 + CloudFront + WAF for low-ops sites
  • 3-tier apps Public ALB, private app, private DB
  • Serverless backends API Gateway → Lambda → DynamoDB/S3
  • Async workloads SQS + DLQ to protect callers
  • Streaming Kinesis for near real-time views

What this portfolio shows

  • End-to-end delivery From idea → deployed workload
  • Troubleshooting DNS, TLS, CI/CD and IAM issues
  • Trade-offs Called out in each README
  • Growth path Room for multi-region, DR, IaC

Let’s talk about AWS and real workloads

If you’re hiring for cloud, platform or AWS-focused roles and want someone who actually builds and documents things end-to-end, I’d be happy to chat.

Email me ✉️ LinkedIn ↗

Based in Dublin, open to remote-friendly or hybrid roles across Ireland and the EU.