JB
LIVE · eu-west-2 · CloudFront

Joshua Barradas

Cloud Engineer · AWS · Terraform · Serverless

"Everything fails, all the time."— Werner Vogels, CTO, Amazon

"In God we trust; all others must bring data."

— W. Edwards Deming

Education & Certifications

University of Leeds

BA (Hons) 2:1

Business Management with Marketing, University of Leeds. Class II Division i.

AWS Certified

Solutions Architect Associate (SAA-C03) & AI Practitioner.

Terraform & Azure

HashiCorp Terraform Associate & Microsoft Applied Skills (Azure).

Project Portfolio

S3 · CloudFront · DynamoDB · GitHub OIDC

Cloud Resume Challenge LIVE · eu-west-2

Serverless static site on AWS with an atomic DynamoDB visitor counter, OIDC-based CI/CD, 5 passing pytest tests and a 100/100 Lighthouse score. Live over HTTPS on a custom domain.

ECS Fargate · VPC · Terraform

ECS Fargate VPC Platform DEPLOYED

Containerised web app on ECS Fargate inside a custom VPC — ~46 Terraform resources, with a live API health check and cost-audit evidence in the repo.

Control Tower · Organizations · Terraform

Secure Multi-Account Landing Zone PARTIAL DEPLOY

64 resources across 6 modules. Security stack deployed live and verified; Organizations and Identity Center layers written and validated — not deployed on the single-account free tier.

OAuth 2.0 · KMS · SQS/DLQ · SNS

JobAdder OAuth Integration IN PRODUCTION

Multi-tenant JobAdder OAuth 2.0 integration built for EfficiencAI — KMS-encrypted token storage, SQS with a dead-letter queue, SNS alerts and 9 tests. Running in production.

Textract · Lambda · DynamoDB · OpenSearch · Cognito

IntelliDoc Engine DEPLOYED · us-east-1

Document-intelligence API — Textract extraction, OpenSearch retrieval and Cognito auth, deployed to us-east-1 with 23 pytest tests and console evidence.

Experience

EfficiencAI

Cloud Engineer · Part-time

Built the multi-tenant JobAdder OAuth 2.0 integration now running in production.

XPX

Cloud / ML · Contract

Explainable risk-decisioning design and prototype (Score · Explain · Act) for a salary-advance fintech.

Pick n Pay

AWS Prototyping · 2025

Piloted three AWS prototypes across two stores (Newmarket and Mulbarton), benchmarking AWS against Azure — simulated five-store load (~950 vs ~500 msg/s) and ~22% stockout reduction. Basis of the undergraduate dissertation.

References

YT

Yunus Tufail

Founder, EfficiencAI · managed directly

HK

Hiresh Kumaran

Noxieun · managed directly

AK

Avvinash Kumanan

COO, Noxieun · worked together

"I can do all things through Christ which strengtheneth me."

— Philippians 4:13