Works with aspects of in-vitro fertilization (IVF) treatment and other programs of assisted reproduction. This includes working with human or animal gametes, i.e., sperm, eggs, and embryos. Duties include oocyte retrieval, semen preparations, fertilization, monitoring of embryo development, cryopreservation, and micromanipulation procedures for ICSI, assisted hatching, and embryo biopsy for pre-implantation genetic diagnosis.