One is for a sales position and the second is for a technical engineer position.

一个是销售职位， 第二个是技术工程师职位。

I expect to continue to learn and grow here while contributing to the company's technical research and development position or product process work.

我希望在这里继续学习和成长，同时为公司的技术研发岗位或产品工艺工作做出贡献。