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DavidCdev/README.md

🏆 Best Quality. On Time. Every Time. ➜ Verified Commitment | Trusted by Leading Clients

🚀 About Me

Are you looking for best-in-class, clean, and scalable solutions to bring your ideas to life?
You've come to the right place!

With 10+ years of experience in building robust Python backend systems, advanced AI agents, data science applications, cross-platform desktop apps and cutting-edge IoT & embedded firmware, I strive to create impactful, production-ready solutions.

  • 💡 Product Thinker – UI & UX awareness; not just a coder
  • 🎯 Business-Aligned Mindset – I focus on your project’s real goals
  • 🛡️ Enterprise-Ready Security & QA
  • 💬 Clear Communication – Transparent processes, fast turnaround

💼 What I Work On

  • AI & Data Science:
    RAG chatbots, AI agent development, model training & evaluation, computer vision, NLP & audio, data dashboards & visualization

  • Python Backend Development:
    FastAPI, Django, Flask APIs, scalable & optimized database-driven systems

  • Desktop Applications:
    PyQt, PySide, Tkinter, Kivy, Electron — cross-platform desktop GUI apps

  • IoT & Firmware Engineering:
    End-to-end embedded solutions using Raspberry Pi, ESP32/8266, Arduino, STM32, LoRa, BLE, and more.
    Sensor integration (temperature, motion, camera, etc.), wireless protocols (MQTT, HTTP, WebSockets), and real-time data streaming.
    Custom firmware design, device-cloud connectivity, and robust edge AI/ML deployments.


⚙️ Tech Stack

  • Embedded & IoT/Firmware:
    Raspberry Pi, ESP32/ESP8266, Arduino, STM32, MicroPython, C/C++, PlatformIO, FreeRTOS, NodeMCU, CircuitPython
    Sensors: DHTxx, BMP/BME280, DS18B20, MPU6050, Camera modules, etc.
    Protocols: MQTT, HTTP(S), WebSocket, BLE, LoRa, Zigbee, CAN
    Remote update, OTA/DFU, and secure device provisioning.

  • AI & Data Science:
    HuggingFace, PyTorch, TensorFlow, scikit-learn, LangChain, AutoGen, LlamaIndex, spaCy, NLTK, OpenCV, Tesseract, XGBoost, LightGBM, Prophet, DVC

  • Data Visualization:
    Matplotlib, Seaborn, Plotly, Bokeh, PowerBI, Tableau, Google Charts, Dash, Streamlit

  • Desktop Apps:
    PyQt, PySide, Kivy, Electron, Tkinter, wxPython

  • Backend:
    FastAPI, Django, Flask, Celery, SQLAlchemy, Tortoise ORM, GraphQL, DRF

  • Databases:
    PostgreSQL, MySQL, SQLite, MS SQL Server, Oracle, MongoDB, Redis, Cassandra, Neo4j, DynamoDB, Firebase

  • Cloud & DevOps:
    AWS (EC2, Lambda, S3, RDS, DynamoDB, SageMaker, ECS, EKS),
    GCP (Compute, App Engine, BigQuery, Firebase, Vertex AI, Cloud Functions),
    Azure (VMs, Azure ML, Blob, CosmosDB),
    Heroku, DigitalOcean, Cloudflare, Docker, Kubernetes, Helm,
    GitHub Actions, Jenkins, MLflow, Airflow, Prefect

  • Testing & Quality:
    Pytest, Unittest, Selenium, JMeter, Locust, Mocha, Chai, Jest, Enzyme, Coverage.py
    Embedded: PlatformIO Unit Testing, Unity, Ceedling

  • Collaboration & Version Control:
    Git (GitHub, GitLab, Bitbucket, SVN),
    Jira, Trello, Asana, Notion, ClickUp, Confluence

  • Documentation & Other Tools:
    Jupyter Notebook, Google Colab, VS Code, PyCharm, Databricks, Anaconda,
    Sphinx, MkDocs, DBeaver, Robo 3T, PgAdmin

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