Centralized Cryptocurrency Exchange Development

I'm looking for an expert in cryptocurrency exchange development to create a centralized trading platform for me. The exchange should support major cryptocurrencies including Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), DOGE, and potentially others.

Key Features:
- User Authentication and Security: As this is a centralized exchange, robust security measures and user verification systems are paramount to ensure the safety of user funds and data.
- Real-time Trading: The platform should facilitate seamless, real-time trading experiences for users.
- Liquidity Management: The exchange needs to have effective mechanisms in place for managing liquidity.
- Global Trading: This exchange aims to cater to a worldwide audience, hence it must support global trading capabilities.

Ideal Skills and Experience:
- Proven experience in developing centralized cryptocurrency exchanges.
- Strong knowledge in blockchain technology and various cryptocurrencies.
- Expertise in implementing robust security and user authentication systems.
- Familiarity with liquidity management strategies.
- Experience in creating platforms for real-time trading.
- Capability to design for a global user base.