Microsoft's Cloud Operations & Innovation (CO+I) is seeking a Critical Environment Senior Mechanical Engineer to join their team. This role is crucial in delivering core infrastructure and foundational technologies for Microsoft's vast network of cloud services. The position is based in Atlanta, working with a global portfolio of over 200 datacenters across 32 countries. The role combines mechanical engineering expertise with cloud infrastructure management, focusing on environmental sustainability and optimization in datacenter design and operations. The position offers competitive compensation ($117,200 - $229,200) and comprehensive benefits. The ideal candidate will have 4+ years of experience, strong technical skills, and the ability to work in a dynamic, fast-paced environment. This is an excellent opportunity to join a world-leading technology company that serves over 1 billion customers and 20 million businesses globally. The role requires a blend of technical expertise, project management skills, and the ability to work collaboratively in a diverse, inclusive environment.