Title: Freelance Developer Needed – Build a Sports Betting Odds Matcher (Ongoing Work + Profit Share Option) Description: I’m looking for a skilled freelance developer to build a sports odds matcher that compares live odds between UK bookmakers (e.g. Bet365, SkyBet, William Hill) and betting exchanges (e.g. Smarkets, Betfair, Matchbook). The tool should automatically identify discrepancies between back and lay odds to highlight potential matched betting opportunities. This is an ongoing project — once the initial build is complete, there will be continuous development work available to improve the system, expand features, and maintain integrations. There’s also the option for a profit share percentage for the right developer who wants to stay involved long term. Main Responsibilities: • Integrate bookmaker and exchange APIs (REST or WebSocket) • Scrape odds for sites without API access • Build a real-time odds comparison engine (updates within seconds) • Implement logic to detect and rank profitable matches • Create a web dashboard with filtering and sorting functions Technical Requirements: • Backend: Python (FastAPI, Flask) or Node.js (Express) • Frontend: React or Next.js • Database: PostgreSQL or MongoDB • Hosting: AWS, DigitalOcean, or Render • Optional: Docker setup for deployment and scalability Key Features: • Live odds comparison across multiple sites • Detection of matched or arbitrage opportunities • Sorting by profit percentage, bookmaker, and event • Historical odds data storage • Clean, simple interface to display results Bonus Experience: • Prior work with sports data APIs (Betfair API, OddsAPI, TheOddsAPI, etc.) • Knowledge of real-time data systems and WebSocket connections • Understanding of UK betting markets and matched betting If you’re a solo developer who enjoys data-driven projects and wants to be part of something that can grow, this could turn into a long-term collaboration. When applying, please include: • Examples of relevant projects • Your technical approach • Estimated timeline and budget range • Whether you’d be open to a small profit share for ongoing involvement ⸻