R&D engineer, production engineer, sales representative and project manager. According to the future recruitment information of Hainan Huanyineng Environmental Protection Equipment Co., Ltd., the positions of the company mainly include R&D engineer, production engineer, sales representative and project manager. You can choose the corresponding positions according to your professional ability. Hainan Huanyineng Environmental Protection Equipment Co., Ltd. is an enterprise engaged in solid waste treatment, R&D and environmental protection equipment manufacturing. Its main business scope includes incinerators, rotary kilns, landfills and garbage sorting equipment.