MT5 Indicator - Retail Sentiment Index with Multi-broker API Integration

I am looking for an experienced Metatrader 5 (MT5) developer to create a custom Retail Sentiment Index Indicator. The indicator will pull real-time sentiment data from multiple brokers via their APIs, calculate net sentiment (long – short), and plot each feed as a moving average line directly over the candlestick chart. The indicator must also display a broker feed is visible.

Data Sources & Feeds
The indicator should connect to the following APIs:
- OandaFX (Green)
- Dukascopy (Red)
- Myfxbook (Orange)
- IG Sentiment (Purple)
Average Weighted Line:
 Deep Sky Blue (3× thicker than other lines)

Core Requirements

1. API Integration
    - Pull live sentiment data for the chart’s current        symbol.
    - Calculate Net Sentiment = Long% – Short%.
    - Handle missing/unavailable data gracefully.

2. Plotting
    - Each broker feed = separate customizable color.
    - Moving average type & period configurable.
    - Weighted average line shows only if ≥ 2 feeds          are visible.

3. Display Modes
    - Default: overlay lines directly on candlestick            chart.
    - Optional: separate window/dashboard view.

4. User Settings
    - API keys/endpoints per broker.
    - Enable/disable individual broker feeds.
    - Color selection for each feed.
    - MA type (SMA, EMA, etc.) and period.
    - Toggle weighted average line.
    - Toggle separate dashboard mode.

5. Performance
    - Efficient, non-blocking API calls.
    - Smooth real-time updating using MT5 buffers.

Deliverables
     - .mq5 source file (with full commented code).
     - Setup instructions for API keys.
     - User documentation for all settings.

Skills Required
     - Strong MT5/MQL5 development experience.
     - Proven API integration experience.
     - Chart plotting and buffer handling in MT5.
     - Ability to deliver clean, maintainable code.