Sperm's lifespan. It takes around 10 weeks for the sperm to reach maturity. Once the sperm is inside the woman's body it can live up to 5 days or even longer under favorable conditions. However, when it is outside the body, it can only survive from few minutes to several hours.
The UX developer role is a discipline under the overall user experience umbrella. This means that to become a UX developer you need to have at least a general understanding of the core UX principles, philosophies, and methodologies.
Software developer, one who programs computers or designs the system to match the requirements of a systems analyst. Web developer, a programmer who specializes in, or is specifically engaged in, the development of World Wide Web applications. Video game developer, a person or business involved in video game development, the process of designing and creating games.