Real-time Sports Odds API Development

I'm looking for an expert bookmaker developer to build an API for real-time odds fetching on all matches (live and upcoming) for all kinds of sports from multiple betting sources

Key Requirements:
- Real-time odds for various sports (specific sports TBD)
- Primary focus on speed of fetching odds
- Integration with multiple betting sources (TBD)

Ideal Skills and Experience:
- Strong background in API development
- Experience with real-time data fetching
- Familiarity with sports betting and various betting platforms
- Ability to ensure high-speed, reliable data delivery
- Previous projects showcasing similar work

Please provide examples of relevant work and a brief outline of your approach.