Python Dev for Dubai Real Estate Market Notifications

We’re a UAE‑based SaaS startup building a wealth management platform for real estate investors (off‑plan focused).
We want to add market activity notifications: investors should be told when something interesting happens in the community/project where their property is located (e.g. new listings, price changes).

This project is not a full valuation system. It’s a small, focused backend service.

1. What You’ll Build
- Lightweight Web Scraper (DXBInteract or similar)
- Python script/service that fetches recent listings for a small, configurable list of Dubai communities / unit types.
- Capture at least: community/project name, unit type (e.g. 1BR), size (sqft), price, listing date, URL/ID.
- Runs on a schedule (daily or weekly) – AWS Lambda + CloudWatch schedule is ideal.

2. Market Activity Detection
- Store simple aggregates per (community, unit_type) like:
-- active listing count,
-- average price per sqft, min/max, etc.
- Compare current vs previous snapshot and detect events such as:
-- “new listings spike”,
-- “average PSF up/down more than X%”.

3. Notification Feed (Backend Only)
- Expose a simple interface (API / Lambda handler) that, given community_id + unit_type, returns recent “events” with ready‑to‑use messages, e.g.:
-- “5 new 1BR listings in Downtown this week.”
-- “Avg price/sqft in your community rose 4% vs last month.”
- We will handle showing these per investor in our Bubble app.

Tech & Requirements
- Strong Python experience (web scraping with requests / BeautifulSoup or similar).
- Experience deploying code on AWS Lambda (or comfortable learning quickly).
- Basic data modelling: store snapshots and compute simple deltas.
- Clean, well‑structured code and clear documentation.

Nice to have:
- Prior work with real‑estate data or market scrapers.
- Experience with rate‑limiting, error handling, and respectful scraping practices.

Payment Terms (Important)
We do not accept proposals that request 100% of the budget as an upfront deposit.
We work on a milestone / “no cure, no pay” style basis: payment is released only for working, demonstrable deliverables.