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Demos
Dive into live video demos of real solutions I’ve built. In each walkthrough, I’ll guide you step-by-step through the architecture, code, and deployments - explaining design choices, troubleshooting tips, and best practices so you can see theory turned into working systems.


Embracing Resilience: Why the Circuit Breaker Pattern Is Your Service’s Best Friend
A practical guide to implementing the Circuit Breaker pattern with Resilience4j in AWS Lambda—complete with metrics in CloudWatch and automated alerts—to protect your services from cascading failures and ensure rapid recovery.
Melvin Jones
May 243 min read


Local Kafka-to-FHIR Pipeline for Real-Time ECG Vitals
How to build and run a local Docker Compose-based pipeline that generates synthetic ECG vitals, streams them through Kafka, transforms them into FHIR Observation resources, and stores them in MongoDB to demonstrate a practical healthcare interoperability proof of concept.
Melvin Jones
May 162 min read


Saga Pattern Demonstration: Order System in AWS
This article showcases the use of the Saga pattern in an proof-of-concept I built, an AWS-based order processing system to manage distributed transactions and ensure consistency.
Melvin Jones
May 74 min read


Sentiment Analysis Application and Demo
In this demo, I demonstrate a proof of concept for sentiment analysis using Hugging Face’s sentiment analysis model.
Melvin Jones
May 71 min read
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