Tableau Dashboard Development and Enhancement -- 2

I'm in need of an experienced Tableau Developer/Analyst/Designer to help me enhance an existing dashboard, and improve its performance and functionality.

Key Responsibilities:
- Enhancing the existing dashboard by adding new features and functionalities.
- Ensuring that the dashboard has real-time data update and interactive capabilities.

Data Sources:
- The data sources for this project include databases (SQL, NoSQL) and local files (CSV, Excel).

Ideal Candidate:
- Proficient in Tableau with a proven track record of developing and enhancing dashboards.
- Experience working with real-time data sources and interactive dashboard elements.
- Understanding of SQL and/or NoSQL databases.
- Familiarity with data visualization best practices.

I am looking for a professional who is not only skilled in Tableau but also understands the importance of user experience in data visualization. Please provide some examples of your previous Tableau work when bidding.

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We are seeking an experienced Tableau Developer/Analyst/Designer to assist in finalizing a dashboard that has already been designed. The freelancer will be responsible for setting up and integrating the dashboard first with Excel and subsequently ensuring it functions seamlessly with an automated MongoDB database. This project requires a hands-on collaboration approach, with direct and ongoing communication with me.

Objectives:

Excel Integration: Successfully integrate the existing Tableau dashboard with Excel to ensure dynamic data interaction.
MongoDB Integration: Transition from Excel to a fully automated MongoDB setup. Ensure the dashboard effectively reflects real-time data changes from the MongoDB database.
Usability and Functionality Testing: Conduct thorough testing to confirm that the dashboard is user-friendly and operates correctly across different scenarios and data sets.
Final Deliverables: A fully functional, dynamic Tableau dashboard integrated with MongoDB, accompanied by documentation detailing the integration process and any necessary user instructions.
Required Skills:

Proficiency in Tableau dashboard development and data visualization.
Strong experience in data analysis and data integration with Excel and MongoDB.
Proficient in backend programming related to database integration.
Knowledge of UX/UI design principles to ensure the dashboard is intuitive and user-friendly.
Fluency in Arabic, as the dashboard is in Arabic. Communication can be conducted in both Arabic and English.
Collaboration Details:

The freelancer will work closely with me to ensure alignment with the project requirements and timelines.
Regular updates and checkpoints will be scheduled to discuss progress, challenges, and adjustments needed.
The freelancer is expected to be proactive in communication and able to work collaboratively in a dynamic environment.
Application Requirements:

Portfolio of previous work that includes Tableau dashboards, especially those integrated with Excel and MongoDB.
References or testimonials from past clients.
Brief proposal outlining your approach to this project and any initial thoughts or suggestions you might have.