Senior Microsoft Platform Software Engineer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Microsoft Platform Software Engineer based in the United States. Join an engineering team focused on modernizing software development practices for an established on-premises enterprise product. In this hands-on role, you will combine deep C#/.NET expertise with practical experience using AI-powered coding tools and agentic development workflows. You will contribute directly to product development while helping the team integrate AI-assisted approaches into its everyday engineering processes. Your work will help improve development speed, code quality, automated testing, troubleshooting, refactoring, and technical documentation. You will collaborate across engineering, product management, quality assurance, and support to deliver reliable, customer-focused solutions. This opportunity is ideal for an experienced developer who enjoys solving complex technical challenges, mentoring peers, and turning emerging AI capabilities into practical engineering improvements. You will also help shape development standards and best practices within an Agile environment supporting enterprise-grade software.