Software Rewrite Completed in Record Time Using AI-Assisted Development

HireRoad, an HR software company, achieved an extraordinary milestone by rewriting one of its oldest software products in just 15 weeks—one week ahead of schedule. The company had originally planned an 18-month rewrite that would have required a 30% surge in engineering headcount. The team took a different approach by reorganizing the engineering department and redefining individual job specifications to maximize the power of off-the-shelf AI tools. This strategy enabled faster development without expanding the workforce; the 30% headcount increase initially planned was redirected to other product development initiatives. Already, the first 34 customers have migrated to the new platform with positive feedback, and the company is on track to complete all migrations and legacy system decommissioning by the end of 2026. This achievement demonstrates how AI tooling can fundamentally accelerate software development velocity while maintaining or even improving team efficiency.