Long-term Stock Prediction Model

I'm seeking a skilled data analyst or machine learning expert to develop a stock price prediction model. The model will be used for long-term investment decisions in international markets.

The ideal candidate should have experience in:

- Time series analysis
- Machine learning algorithms
- Financial market understanding, especially international markets
- Strong proficiency in Python or R
- Data visualization skills

Please provide samples of previous work and a brief outline of your approach.