Markwins Beauty Brands in Tijuana seeks an R&D; Testing Engineer to support development, testing, evaluation, and validation of cosmetic products. You will conduct laboratory tests, evaluate raw materials and finished products, and collaborate with R&D;, Quality, Regulatory, and Production to ensure quality and regulatory compliance.The role requires hands-on lab experience, knowledge of cosmetic testing, stability studies, and packaging integrity testing, plus proficiency in English.#J-18808-Ljbffr