Software Engineer IV, Viper Engineering

Who we are looking for: ACV Auctions is looking for a Software Engineer to join our ACV Retail - Viper Teams and work on our SaaS Product. The position will focus on backend development & maintenance of Go Lang features & services hosted in AWS and utilizing Postgres and NOSQL. The ideal candidate has a strong background and proven track record of architecting and designing enterprise applications in Go Lang and Node.JS, a penchant for high quality code, and a team minded approach to development. What you will do: Develop Services using modern language stacks like Go Lang , Postgres and NoSQL databases like mongo, SQL Server is nice to have. Design and build complex systems that can scale rapidly with little maintenance, with a strong focus on reliability, performance, and operational excellence. Design, build, and maintain Kafka-based event processing services, including consuming, deserializing, validating, persisting, and reacting to events to drive downstream workflows. Design and implement effective service/product interfaces, including third-party API integrations and extensible handler patterns for new integrations. Develop and maintain application data models, including writing and tuning complex SQL queries, optimizing indexes and performance, and designing schemas that reliably support application workflows Own larger, complex initiatives end-to-end—from discovery and requirements through delivery and production support—driving alignment across engineering a