Microsoft's Surface Software Power and Performance Team is seeking a Software Engineer II to join their Performance Engineering group. This role focuses on system-level optimization at the intersection of software, electrical, mechanical, and thermal systems across the Surface portfolio. The position involves working with the Security Development Lifecycle (SDL), conducting security assessments, and managing vulnerabilities to ensure compliance with privacy regulations. As part of Microsoft's mission to empower every person and organization globally, you'll work both independently and in teams to architect and implement solutions, while guiding others and collaborating with various stakeholders. The role offers competitive compensation ranging from $98,300 to $193,200 USD annually (higher in SF and NYC areas), comprehensive benefits, and the opportunity to work on cutting-edge consumer electronics optimization. The position requires expertise in embedded systems, silicon performance optimization, and thermal mitigation, making it an ideal opportunity for engineers passionate about hardware-software integration and system performance.