Crypto Wallet & Swap Solution & Crypto POS Solution.

I'm seeking a proficient developer or team to create a comprehensive crypto wallet and swap solution, alongside a crypto point of sale (POS) system.

Key Features:
- The crypto wallet should be a mobile app, capable of storing various cryptocurrencies, swapping them, and facilitating purchases at POS.
- The wallet must support Bitcoin, Ethereum, and Litecoin.

Ideal Skills:
- Mobile app development
- Real Skills in Blockchain and crypto currency.
- Blockchain technology understanding
- POS system integration
- Cryptocurrencies knowledge
- UI/UX design ability for smooth user experience

Please demonstrate your relevant experience and provide examples of similar projects you've completed.