{"data":{"featured":{"edges":[{"node":{"frontmatter":{"title":"Vaccination Campaign Management System","cover":{"childImageSharp":{"gatsbyImageData":{"layout":"constrained","placeholder":{"fallback":"data:image/jpeg;base64,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"},"images":{"fallback":{"src":"/static/29fd442d40c0f079f76d91c0f6032117/78b08/vaccinationsystem.jpg","srcSet":"/static/29fd442d40c0f079f76d91c0f6032117/5f1eb/vaccinationsystem.jpg 175w,\n/static/29fd442d40c0f079f76d91c0f6032117/a9586/vaccinationsystem.jpg 350w,\n/static/29fd442d40c0f079f76d91c0f6032117/78b08/vaccinationsystem.jpg 700w","sizes":"(min-width: 700px) 700px, 100vw"},"sources":[{"srcSet":"/static/29fd442d40c0f079f76d91c0f6032117/218dd/vaccinationsystem.avif 175w,\n/static/29fd442d40c0f079f76d91c0f6032117/7fbd3/vaccinationsystem.avif 350w,\n/static/29fd442d40c0f079f76d91c0f6032117/d4d5f/vaccinationsystem.avif 700w","type":"image/avif","sizes":"(min-width: 700px) 700px, 100vw"},{"srcSet":"/static/29fd442d40c0f079f76d91c0f6032117/d5efe/vaccinationsystem.webp 175w,\n/static/29fd442d40c0f079f76d91c0f6032117/b74fb/vaccinationsystem.webp 350w,\n/static/29fd442d40c0f079f76d91c0f6032117/022b4/vaccinationsystem.webp 700w","type":"image/webp","sizes":"(min-width: 700px) 700px, 100vw"}]},"width":700,"height":385}}},"tech":["Django","PostgreSQL","HTML5/CSS3","Media Handling"],"github":"https://github.com/brook1717/vaccination-system","external":null,"cta":null,"category":null},"html":"

Developed a centralized vaccination management system designed to coordinate multiple vaccination centers and track vaccine inventory in real time. I designed a relational database architecture to manage dose availability across multiple geographic locations.

\n

The platform includes a custom scheduling system that prevents over-booking at vaccination centers and ensures balanced appointment distribution. I also implemented secure media handling for managing user health profile uploads within the application.

"}},{"node":{"frontmatter":{"title":"Gym Membership & Payment Management System","cover":{"childImageSharp":{"gatsbyImageData":{"layout":"constrained","placeholder":{"fallback":"data:image/jpeg;base64,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"},"images":{"fallback":{"src":"/static/cde1a4bbf674103dbbe0e012b51c486f/468fb/gym.png","srcSet":"/static/cde1a4bbf674103dbbe0e012b51c486f/b9bb2/gym.png 175w,\n/static/cde1a4bbf674103dbbe0e012b51c486f/aa464/gym.png 350w,\n/static/cde1a4bbf674103dbbe0e012b51c486f/468fb/gym.png 700w,\n/static/cde1a4bbf674103dbbe0e012b51c486f/d75e3/gym.png 1400w","sizes":"(min-width: 700px) 700px, 100vw"},"sources":[{"srcSet":"/static/cde1a4bbf674103dbbe0e012b51c486f/c3835/gym.avif 175w,\n/static/cde1a4bbf674103dbbe0e012b51c486f/cdba5/gym.avif 350w,\n/static/cde1a4bbf674103dbbe0e012b51c486f/c74f5/gym.avif 700w,\n/static/cde1a4bbf674103dbbe0e012b51c486f/e7d8e/gym.avif 1400w","type":"image/avif","sizes":"(min-width: 700px) 700px, 100vw"},{"srcSet":"/static/cde1a4bbf674103dbbe0e012b51c486f/71830/gym.webp 175w,\n/static/cde1a4bbf674103dbbe0e012b51c486f/b0cbb/gym.webp 350w,\n/static/cde1a4bbf674103dbbe0e012b51c486f/f1516/gym.webp 700w,\n/static/cde1a4bbf674103dbbe0e012b51c486f/2f8ab/gym.webp 1400w","type":"image/webp","sizes":"(min-width: 700px) 700px, 100vw"}]},"width":700,"height":333}}},"tech":["Django REST Framework","PostgreSQL","JWT Auth","Chapa API","Docker"],"github":"https://github.com/brook1717/Gym_management","external":null,"cta":null,"category":null},"html":"

A backend system designed to digitize gym membership management and payment processing for fitness businesses in Ethiopia. The platform integrates the Chapa payment gateway to automate membership renewals, payment tracking, and revenue management.

\n

The system implements a robust Role-Based Access Control (RBAC) model to ensure sensitive financial data and administrative functions are restricted to authorized staff. I also built an Activity Logging system to maintain a complete audit trail of administrative actions, improving system transparency and operational accountability.

"}},{"node":{"frontmatter":{"title":"AWS Highly Available Web Architecture","cover":{"childImageSharp":{"gatsbyImageData":{"layout":"constrained","placeholder":{"fallback":"data:image/jpeg;base64,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"},"images":{"fallback":{"src":"/static/2432ceb9746451c43fc050bb8b76e9dd/1c345/architecture-diagram.jpg","srcSet":"/static/2432ceb9746451c43fc050bb8b76e9dd/18003/architecture-diagram.jpg 175w,\n/static/2432ceb9746451c43fc050bb8b76e9dd/587b0/architecture-diagram.jpg 350w,\n/static/2432ceb9746451c43fc050bb8b76e9dd/1c345/architecture-diagram.jpg 700w","sizes":"(min-width: 700px) 700px, 100vw"},"sources":[{"srcSet":"/static/2432ceb9746451c43fc050bb8b76e9dd/dd155/architecture-diagram.avif 175w,\n/static/2432ceb9746451c43fc050bb8b76e9dd/a9ed7/architecture-diagram.avif 350w,\n/static/2432ceb9746451c43fc050bb8b76e9dd/6985e/architecture-diagram.avif 700w","type":"image/avif","sizes":"(min-width: 700px) 700px, 100vw"},{"srcSet":"/static/2432ceb9746451c43fc050bb8b76e9dd/9f4f3/architecture-diagram.webp 175w,\n/static/2432ceb9746451c43fc050bb8b76e9dd/6061d/architecture-diagram.webp 350w,\n/static/2432ceb9746451c43fc050bb8b76e9dd/607fc/architecture-diagram.webp 700w","type":"image/webp","sizes":"(min-width: 700px) 700px, 100vw"}]},"width":700,"height":554}}},"tech":["AWS","Terraform","Auto Scaling","Multi-AZ RDS","GitHub Actions"],"github":"https://github.com/brook1717/ha-scalable-webapp-aws.git","external":null,"cta":null,"category":null},"html":"

Designed and deployed a production-grade, highly available web architecture on AWS. I built a custom VPC spanning multiple Availability Zones to eliminate single points of failure and ensure system resilience.

\n

Traffic is distributed through an Application Load Balancer to Auto Scaling EC2 instances, enabling the system to automatically scale during demand spikes. The database layer uses Amazon RDS in a private subnet to isolate it from public access, secured through strict security group rules and IAM policies.

\n

The entire infrastructure is provisioned using Terraform, enabling reproducible and version-controlled cloud deployments.

"}},{"node":{"frontmatter":{"title":"UniMap: Smart Campus Navigation System","cover":{"childImageSharp":{"gatsbyImageData":{"layout":"constrained","placeholder":{"fallback":"data:image/jpeg;base64,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"},"images":{"fallback":{"src":"/static/47fa2e1f5d5c171aa146e368ba136a96/8d934/unimap.jpg","srcSet":"/static/47fa2e1f5d5c171aa146e368ba136a96/cb333/unimap.jpg 175w,\n/static/47fa2e1f5d5c171aa146e368ba136a96/778c5/unimap.jpg 350w,\n/static/47fa2e1f5d5c171aa146e368ba136a96/8d934/unimap.jpg 700w,\n/static/47fa2e1f5d5c171aa146e368ba136a96/ab3bb/unimap.jpg 1400w","sizes":"(min-width: 700px) 700px, 100vw"},"sources":[{"srcSet":"/static/47fa2e1f5d5c171aa146e368ba136a96/29fb5/unimap.avif 175w,\n/static/47fa2e1f5d5c171aa146e368ba136a96/385c0/unimap.avif 350w,\n/static/47fa2e1f5d5c171aa146e368ba136a96/b016a/unimap.avif 700w,\n/static/47fa2e1f5d5c171aa146e368ba136a96/546dd/unimap.avif 1400w","type":"image/avif","sizes":"(min-width: 700px) 700px, 100vw"},{"srcSet":"/static/47fa2e1f5d5c171aa146e368ba136a96/4ebdb/unimap.webp 175w,\n/static/47fa2e1f5d5c171aa146e368ba136a96/6e30e/unimap.webp 350w,\n/static/47fa2e1f5d5c171aa146e368ba136a96/cf144/unimap.webp 700w,\n/static/47fa2e1f5d5c171aa146e368ba136a96/76e34/unimap.webp 1400w","type":"image/webp","sizes":"(min-width: 700px) 700px, 100vw"}]},"width":700,"height":335.00000000000006}}},"tech":["Django","GeoDjango","PostgreSQL","PostGIS","React","Tailwind CSS","Leaflet","Docker"],"github":"https://github.com/brook1717/unimap-jju-campus","external":null,"cta":null,"category":"deployed"},"html":"

A high-performance GIS-based web and mobile application designed to simplify navigation across Jigjiga University campus. It allows users to locate buildings, explore facilities, and generate optimal walking routes.

\n

šŸŒ Live Site: https://jigjigaunimap.birukkasahun.com/
\nšŸ“± Android App: https://play.google.com/store/apps/details?id=com.birukkasahun.unimap

\n

Built with a mobile-first approach using GeoDjango + PostGIS for spatial data handling and React + Leaflet for interactive maps. The system manages 80+ campus locations using GeoJSON/CSV datasets and provides building details and images.

\n

Containerized with Docker for consistent deployment and scalability.

"}},{"node":{"frontmatter":{"title":"MediFlow Serverless API","cover":{"childImageSharp":{"gatsbyImageData":{"layout":"constrained","placeholder":{"fallback":"data:image/jpeg;base64,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"},"images":{"fallback":{"src":"/static/f6931117ec25726b3d6654ed0341e463/64fa5/architecture-diagram.jpg","srcSet":"/static/f6931117ec25726b3d6654ed0341e463/65c94/architecture-diagram.jpg 165w,\n/static/f6931117ec25726b3d6654ed0341e463/b633e/architecture-diagram.jpg 329w,\n/static/f6931117ec25726b3d6654ed0341e463/64fa5/architecture-diagram.jpg 658w","sizes":"(min-width: 658px) 658px, 100vw"},"sources":[{"srcSet":"/static/f6931117ec25726b3d6654ed0341e463/71566/architecture-diagram.avif 165w,\n/static/f6931117ec25726b3d6654ed0341e463/8cbd6/architecture-diagram.avif 329w,\n/static/f6931117ec25726b3d6654ed0341e463/5b5c8/architecture-diagram.avif 658w","type":"image/avif","sizes":"(min-width: 658px) 658px, 100vw"},{"srcSet":"/static/f6931117ec25726b3d6654ed0341e463/8e595/architecture-diagram.webp 165w,\n/static/f6931117ec25726b3d6654ed0341e463/2889e/architecture-diagram.webp 329w,\n/static/f6931117ec25726b3d6654ed0341e463/3bb3c/architecture-diagram.webp 658w","type":"image/webp","sizes":"(min-width: 658px) 658px, 100vw"}]},"width":700,"height":707.4468085106383}}},"tech":["AWS","Terraform","Lambda","API Gateway","DynamoDB","S3","Cognito","Node.js","GitHub Actions"],"github":"https://github.com/brook1717/mediflow-serverless-api","external":null,"cta":null,"category":null},"html":"

A production-grade serverless backend system built on AWS, designed to demonstrate scalable, secure, and event-driven architecture. The platform leverages AWS Lambda and API Gateway for compute, with DynamoDB and S3 handling data storage and file management.

\n

The system implements a decoupled event-driven pipeline using presigned URLs, enabling direct file uploads to S3 and asynchronous processing via Lambda, improving performance and system resilience.

\n

Infrastructure is fully managed using Terraform with automated CI/CD through GitHub Actions, ensuring reproducible deployments. Security is enforced through JWT-based authentication with Cognito and strictly scoped IAM roles, following best practices for cloud-native applications.

"}}]}}}