Senior Backend Engineer — .NET & Legacy Modernization

FacilityOS is seeking a Sr. Back-End Engineer to join a hybrid team that meets in the office three times a week. You will ramp quickly, work on legacy systems, and apply strong architectural principles to improve delivery throughput without compromising quality.

The ideal candidate has deep .NET backend experience, strong design patterns, cloud-native SaaS knowledge, and a proactive mindset to deliver high-quality software with minimal supervision.