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Jaefer-Kemal/README.md

Jaefer Kemal

Software Engineer · Backend & Systems · Ethiopia 🇪🇹

Building scalable backend systems, cloud-native applications, and AI-powered products.

LinkedIn · GitHub · LeetCode · Email


👨‍💻 About

Computer Science & Engineering graduate ('26) from Adama Science and Technology University.

I enjoy designing backend architectures, building reliable APIs, and turning complex workflows into scalable software.

Currently focused on:

  • Backend & Cloud Infrastructure
  • High-concurrency Distributed Systems
  • AI / RAG Applications
  • Clean Architecture

⚡ Quick Facts

🎓 ASTU — BSc CSE
🏆 CGPA: 3.78 / 4.00 (Great Distinction)

💻 400+ DSA problems solved

🏅 ECPC 2025
Top 19 / 90+ national teams

🚀 A2SV Hackathon Quarterfinalist


🛠 Engineering Stack

Backend
Go, Gin
FastAPI
NestJS, Express.js
Django REST

Frontend
Next.js
React
TypeScript
Tailwind CSS

Infrastructure
Docker
Google Cloud Run
GitHub Actions
Cloudflare, Vercel

Databases
PostgreSQL
MongoDB
Redis
pgvector

AI Systems
RAG Architectures
Vector Search
OpenAI Embeddings
LLM Integrations

Practices
Clean Architecture
REST API Design
RBAC Schemas
CI/CD Pipelines


🚀 Featured Projects

🏥 Hospital Referral System

High-concurrency healthcare platform enabling hospitals to safely route and track critical patient transfers.

Engineering Highlights:

  • Go & Gin REST APIs
  • Leveraged Redis caching & PostgreSQL transaction locks to prevent scheduling race conditions
  • Strict JWT & RBAC authorization

🔗 View Source Code

🤖 Oracle AI Knowledge Base

Enterprise RAG platform for intelligent document search, contextual semantic querying, and AI assistance.

Engineering Highlights:

  • FastAPI & Next.js architecture
  • High-speed vector retrieval using pgvector
  • Embeddable asynchronous AI chatbot widget
  • Secure admin knowledge management

🔗 Explore Live Demo

🎓 University Project Hub

Academic governance API managing the complete, immutable lifecycle of student proposals and projects.

Engineering Highlights:

  • Built using Go and Clean Architecture
  • Custom Finite State Machines (FSM)
  • Immutable history and audit trails

📊 GitTracker

Developer productivity platform tracking local and remote Git repository analytics and commit patterns.

Engineering Highlights:

  • NestJS, MongoDB, & Electron
  • Custom Node.js parser engine
  • Full CI/CD automation via GitHub Actions

💼 Experience

Freelance Software Engineer — Bravo Trading and Engineering PLC

Architected and deployed production business technology infrastructure:

  • Developed and launched the corporate enterprise platform (bravoethiopia.et) using Next.js.
  • Built a custom CMS and modular administrative dashboard for internal record management.
  • Optimized performance and security via Cloudflare CDN, DNS routing, and SSL configurations.

Backend Engineering Intern — Impact Makers Foundation

Led backend architecture within an agile 5-person development sprint team:

  • Engineered robust, optimized REST APIs using NestJS and MongoDB.
  • Designed secure JWT authentication flows and granular Role-Based Access Control (RBAC).
  • Containerized application microservices using Docker to eliminate configuration drift.

🏆 Achievements

Competition / Milestone Result
Ethiopian Collegiate Programming Contest (ECPC) 2025 Top 19 / 90+ National Teams (Top 5 ASTU)
A2SV National Hackathon 2024 Quarterfinalist out of 100+ teams
Competitive Programming 400+ algorithmic problems solved on LeetCode/Codeforces
ALX Africa Back-End Web Development Specialization Certificate

Pinned Loading

  1. oracle-ai-backend oracle-ai-backend Public

    The mission-critical RAG (Retrieval-Augmented Generation) engine. Powered by Grok-3 and Cohere, featuring a robust vector-ingestion pipeline, session-based intelligence, and high-performance JWT se…

    Python

  2. Grand-Climax/Hospital-Referral-System Grand-Climax/Hospital-Referral-System Public

    A digital infrastructure backend for the Ethiopian healthcare ecosystem. Orchestrates complex patient referrals, enforces role-based security, and maintains immutable audit trails of the patient jo…

    Go

  3. oracle-ai-frontend oracle-ai-frontend Public

    A premium Next.js 16 dashboard and universal AI widget. Managed by an edge-native security proxy, designed for seamless enterprise knowledge administration and cross-domain AI integration.

    TypeScript

  4. django-rent-predictor django-rent-predictor Public

    A Django-based web application that uses a machine learning model to predict house rent prices based on user input.

    Python