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Roy Python Developer Banner

I'm Roy 😊

Python developer building polished apps, dashboards, and user-friendly tools.

I'm transitioning into software development after years of real-world experience in logistics, data handling, and frontline services. Now I am focusing on creating clean and reliable Python applications that solve problems with thoughtful UI design and solid backend structure.


👨🏽‍🔬 I am currently working on

  • Mini Embedding Explorer
  • A business‑ready analytics tool that transforms raw text into visual insights.
    Upload customer feedback, support tickets, policies, CVs, or any text dataset — the app generates embeddings, reduces them to 2D, clusters them, and reveals hidden patterns.
  • I am also refining my existing apps with better UI Design, improved structure, and more robust testing, including my HuggingFace-based app. Hugging Face Space

🤝 Open Source Contributions

I contribute to the Python ecosystem because I believe the best way to master a tool is to help build it. I'm driven by a developer help mindset. Every PR is an opportunity to solve real-world problems for the global developer community.

  • joke2k/faker:

    • Contribution: Implemented the missing bank() provider for the en_GB locale.
    • Impact: Enabled thousands of developers to generate localized, structurally accurate UK banking data for testing.
    • Status: Merged PR #2332
  • ThomasBury/pyragify:

    • Contribution: Engineered an optimized YAML configuration for high-fidelity repository visualization (Text2Flow).
    • Impact: Reduced LLM context clutter and optimized RAG pipelines by scaling word-count limits to preserve complex flowchart grammars.
    • Status: Merged PR #2
  • joke2k/faker:

    • Contribution: Revitalized the image placeholder service by migrating from the defunct placekitten.com to the active placekittens.com provider.
    • Impact: Restored functionality for millions of developers using image provider generators, preventing broken URL returns across global test suites. (I saved the kittens! 🐈‍⬛)
    • Status: Merged PR #2364

🌿 I'm currently learning
  • PyMongo, MySQL and other backend service patterns
  • Advanced CLI design with menus and persistent data
  • Improving my testing capabilities with Pytest
  • Better UI/UX patterns in Python frameworks

🧑🏽‍🤝‍🧑🏼 I'm looking to collaborate on

Any of my projects - dashboards, apps, tools, or experiments If something you see on my repo does interest you, I am always happy to work together and grow.


😊 I'm looking for help with

Anything that can improve my projects - architecture, testing, UI, or performance. Reach out - don't be shy. 😊 I'm open to feedback and contributions.


🗣️ Ask me about
  • Python application structure
  • Dashboards and UI frameworks
  • Data handling and storage
  • Turning ideas into working tools
  • My projects
  • Basically, ask me anything you like 😊

📧 How to reach me You can reach me through LinkedIn or Email

LinkedIn 📧Email me


👨🏽 Pronouns He/Him
😊 Fun Fact I genuinely enjoy coding and building apps.

🧰 Tech Stack
  • Core Developement and Backend Engineering

Python SQL Git FastAPI Django Django REST Framework Flask Pydantic Redis RQ Swagger Click

  • Data, AI and High Performance Computing

PostgreSQL MySQL SQLite MongoDB DuckDB Polars Pandas NumPy Numba ChromaDB Scikit-Learn XGBoost SentenceTransformers LangChain Reverse Geocoder Scapy

  • UI, Visualisation and Automation

Streamlit Flet CustomTkinter Tkinter Kivy Reflex Plotly Dash NetworkX PyVis Pillow Graphviz Playwright Selenium BeautifulSoup Pytest Faker Faker Contributor


🎯 Current Focus
  • Building interactive CLI tools with menus and persistent data
  • Continually learning about other libraries in Python, e.g., PyMongo and backend service patterns
  • Strengthening testing discipline with Pytest
  • Contributing to open-source projects
  • Refining UI/UX in Python apps

🧑🏽‍💻 About Me
  • Python Developer with a background in logistics, data administration, and data analysis
  • Passionate about building practical, user-friendly applications.
  • Strong attention to detail, structure, and reliability
  • Enjoy turning ideas into polished, working software
  • I do not use Agents I prefer to do the hard work myself so I understand a project from end to end.
  • Always learning and always improving — that's me 😁

If you've got this far, thank you for stopping by. I am always open to collaborate, learn, and grow.

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  1. rag_library_ai rag_library_ai Public

    This project is a Retrieval-Augmented Generation (RAG) application designed to act as an intelligent librarian. By indexing technical Python books, it allows users to ask complex questions and rece…

    Python

  2. Invoice-Fraud-Detector-Service Invoice-Fraud-Detector-Service Public

    An end-to-end Machine Learning microservice that detects high-risk financial transactions using XGBoost. Featuring a real-time Flask API and an interactive risk-dashboard, it demonstrates a complet…

    Python

  3. nhs-performance-dashboard nhs-performance-dashboard Public

    An end-to-end Clinical Intelligence suite that monitors patient wait times and predicts RTT (Referral to Treatment) breaches using a high-performance DuckDB analytical engine.

    Python

  4. uk-population-tracker uk-population-tracker Public

    Interactive UK Population Tracker | A full-stack Data Engineering platform featuring synthetic data generation (Faker/Mimesis), Polars-driven analytics, and Geospatial visualization.

    Python

  5. Pydescope Pydescope Public

    A static analysis tool that maps Python project dependencies into interactive NetworkX graphs.

    Python

  6. finance_app finance_app Public

    FinanceApp is a full‑stack personal finance analytics platform designed to ingest messy real‑world bank CSVs, clean and normalise the data, and present clear financial insights through dashboards, …

    Python