Profile photo of Mohammad Deen Hayatu - Software Engineer specializing in AI and healthcare technology

Mohammad Deen Hayatu

Software Engineer · Full-Stack Developer · AI/RAG Engineer

I build scalable web applications, APIs, AI/RAG and cloud-deployed systems with a focus on clarity, maintainability, scalability and real-world impact.

3+
Years Experience
15+
Projects Delivered
10+
AI Certifications
🇬🇭🇩🇪
Ghana · Germany
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About Me

I'm a software engineer with a unique background in scientific research that informs my disciplined, systems-level approach to building production-oriented software. My work focuses on creating scalable solutions that address real-world challenges, particularly in West African contexts.

I specialize in full-stack development, AI/RAG systems, and cloud infrastructure. My recent projects demonstrate expertise in building healthcare platforms, agricultural technology solutions, and AI-powered tools using cutting-edge technologies while prioritizing privacy and local-first approaches.

Experience & Background

Founder & Lead Developer

Jan 2025 - Present

Haydeen Technologies

Founded technology company delivering innovative software solutions for West African industries. Leading development of AgriConnect platform and providing website design services to organizations like MPCGhana.org. Focus on mobile-first, culturally appropriate design and industry-specific solutions.

Software Engineer

2023 - Present

Independent Projects

Developed comprehensive Electronic Health Records system (GhEHR) for Ghana healthcare facilities with AI-powered clinical notes. Built multiple AI/RAG systems using LangChain, Ollama, and Mistral 7B for document analysis, data visualization, and natural language SQL queries—all with privacy-first, local-first architecture.

Scientific Research Background

Prior Experience

Background in scientific research providing strong foundation in systematic problem-solving, data analysis, and rigorous methodology. This experience informs my engineering approach with emphasis on clear abstractions, maintainable code, and reliable technology choices.

Philosophy

  • Clear abstractions over clever code
  • Boring, reliable technology that scales
  • Code that is readable six months later
  • Real-world impact over technical showboating

Projects

GhEHR System

Node.js · React · TypeScript · AWS

Comprehensive Electronic Health Records system for Ghana healthcare facilities with AI-powered clinical notes, offline capabilities, and real-time disease detection for malaria, typhoid, TB, and other common conditions.

Haydeen Technologies

React · Node.js · PostgreSQL · Vercel

Digital platform delivering innovative software solutions and website design services for West African industries, featuring AgriConnect and industry-specific solutions with mobile-first, culturally authentic design.

RAG Document Summarizer

Python · Mistral 7B · Ollama · ChromaDB

AI-powered document analysis system using Retrieval-Augmented Generation with local Mistral 7B. Features multi-format support (PDF, DOCX, TXT), semantic search, and interactive Q&A with complete privacy - all processing happens locally.

Data Visual Agent

Python · LangChain · Ollama · Natural Language

Transform datasets into beautiful visualizations using natural language queries. Supports CSV, Excel, JSON with automatic format detection, intelligent code generation, and publication-ready charts - completely local and private.

Local SQL Agents

Python · LangChain · Mistral 7B · MySQL

Natural language to SQL query converter using locally-hosted Mistral 7B via Ollama. Convert plain English questions into SQL commands with robust error handling, query validation, and complete data privacy.

AgriConnect

React · Node.js · PostgreSQL · Mobile-First

Flagship agricultural platform connecting farmers, buyers, and suppliers across West Africa. Features real-time weather data, direct marketplace with fair pricing, supply chain tracking, and educational resources in local languages.

Technical Skills

Frontend

  • HTML, CSS, JavaScript
  • React
  • TypeScript
  • Responsive Design

Backend

  • Node.js & Express
  • Python
  • REST APIs
  • PostgreSQL & MySQL
  • C

DevOps & Cloud

  • AWS (EC2, S3, Elastic Beanstalk)
  • Docker
  • GitHub Actions
  • CI/CD Pipelines

AI/RAG Systems

  • LangChain & LangGraph
  • Ollama & Mistral
  • HuggingFace
  • ChromaDB & FAISS
  • CrewAI

Data Science

  • Bioinformatics
  • Machine Learning
  • Statistical Analysis
  • R & Python
  • Genomic Data Analysis

Languages

  • English (Native)
  • Hausa (Native)
  • Twi (Native)
  • German (Professional)
  • Arabic (Limited)

Certifications & Credentials

🎓

RAG for Generative AI Applications Specialization

IBM via Coursera • November 2025

Comprehensive specialization covering GenAI fundamentals, RAG workflows, embedding models, similarity search, vector databases (ChromaDB, FAISS), and frameworks (LangChain, LlamaIndex). Built integrated interfaces using Gradio.

🤖

Build Multimodal Generative AI Applications

IBM via Coursera • October 2025

Proficiency in building multimodal AI applications integrating text, speech, images, and video. Leveraged Meta's Llama 4, OpenAI Whisper, and DALL-E. Deployed scalable workflows using Hugging Face, LangChain, Gradio, and Flask.

🔍

Advanced RAG with Vector Databases

IBM via Coursera • September 2025

Mastery of advanced retrievers in LangChain and LlamaIndex, semantic similarity search, HNSW algorithm, and building interactive RAG applications with multiple frameworks.

🧠

Fundamentals of Building AI Agents

IBM via Coursera • September 2025

Developed AI agents with reasoning and autonomous task execution. Implemented tool calling and chaining for structured workflows. Applied best practices in prompt engineering and tool orchestration.

☁️

AWS Fundamentals Specialization

Amazon Web Services

Cloud infrastructure, EC2, S3, VPC, security best practices, and deployment strategies.

🐍

Python for Data Science & AI Development

IBM

Python programming, data analysis, NumPy, Pandas, data visualization, and AI application development.

Additional Credentials

Generative AI Essentials (IBM)
Vector Databases for RAG (IBM)
Build RAG Applications (IBM)
Linux Commands & Shell Scripting
R Programming
Develop GenAI Applications (IBM)

Contact

Email: mohammaddeen.hayatu@haydeentechnologies.com

📄 Download Resume