Vaco is partnering with a privately held software company that builds mission-critical platforms for building materials distributors across North America. This organization supports customers ranging from single-location operators to large enterprise chains and is continuing to scale following recent expansion. The engineering environment includes multiple agile teams working across a shared platform, with a strong emphasis on reliability, performance, and long-term maintainability. This role is a senior, hands-on individual contributor focused on core platform services, requiring deep expertise in Progress OpenEdge and ABL. The ideal candidate is someone who enjoys solving complex backend challenges, improving legacy systems, and contributing to architectural direction while still writing code daily. What You'll Be Doing Design and build core platform services, shared frameworks, and backend components that support multiple product teams Develop and maintain systems using Progress Ope...