Job requirements: 1. College degree or above, major in Purification Environment and Equipment Engineering; 2. Outgoing personality, strong communication skills, able to handle any work pressure in this position; Being upright, honest, conscientious and responsible in work, with good overall quality; 3. More than two years of independent design and construction experience in purification engineering projects, familiar with purification design specifications and construction standards; 4. Proficient in using CAD design software and application software, with the ability to develop, integrate, and budget large-scale purification engineering project plans; 5. Has excellent negotiation skills, can represent the company in external negotiations, can adapt to business trips, and has strong stress resistance.