A well-established technology organization is seeking a Ruby-focused contractor to support a time-sensitive modernization initiative. This role centers on upgrading a legacy USPS shipping integration to the latest REST-based USPS API v4. The engagement is fully remote, contract-based, and designed for an engineer who can work independently and deliver within a clearly defined scope. This project is ideal for a seasoned engineer who enjoys short-term, high-impact contract work without long-term o