I'm looking for C# developer

Hi,

I'm looking for a C# developer with trading indicator experience to build a custom indicator for the ATAS platform.

About ATAS:

ATAS is a professional order flow and footprint charting platform, similar to NinjaTrader in that indicators are built in C#. It has an open source SDK here: github.com/AtasPlatform/ATAS-Indicators — if you've built NinjaTrader indicators, the structure will feel familiar.

What I need built:

A custom indicator called "Rectangle Delta Analyzer."

How it works:

1. - User draws a rectangle on a footprint chart

2. - The indicator reads every footprint price ROW inside the rectangle's exact price AND time boundaries

3. - It then displays two numbers inside the rectangle:

4.   ✅ Buyers: +X,XXX (sum of only positive delta rows)

5.   🔴 Sellers: -X,XXX (sum of only negative delta rows)

6. - Calculates once when the rectangle is drawn (static, not live updating)

7. - Multiple rectangles on the chart should each show their own independent values

Critical requirement:

Positive and negative delta rows must NEVER be netted against each other. They must always display as two completely separate numbers.

Why row-level matters:

ATAS stores bid/ask volume at each individual price level inside a candle (footprint data). I need the indicator to read THAT data — not the candle-level delta. A candle can span 10+ price levels and I only want the rows that fall inside my rectangle's price range.

I have a full technical spec with C# logic ready to share if you're interested.

Please only reply if you're comfortable with C# and have experience with trading platform indicators. Knowledge of ATAS is a bonus but not required if you're willing to review the SDK.

What's your experience with this type of work?