Large Data Engineering with Python/R

I'm in need of a skilled data engineer, proficient in Python and R, to handle a large volume of data sourced from external sources.

Key Responsibilities:
- Develop and implement batch processing systems for the large external data.
- Optimize and ensure the efficiency of data processing systems.

The ideal candidate should have:
- Strong programming skills in Python.
- Experience with R for data processing.
- Previous experience with large external data sources.
- Excellent problem-solving and analytical skills.
- A good understanding of data processing and optimization techniques.