OpenBorder is seeking a Senior Software Engineer to lead key projects and shape the systems that support global shipping, tax compliance, and merchant services. This is a fully remote position working with a tech stack including Java, MongoDB, PostgreSQL, TypeScript, Next.js, Nest.js, AWS, and GCP. As a senior engineer, you'll take ownership of end-to-end feature delivery, mentor other engineers, and influence technical direction across the stack. The role offers comprehensive benefits including healthcare, 401k, equity, and flexible PTO. This is an excellent opportunity for an experienced engineer looking to make a significant impact while working with modern technologies and leading complex engineering initiatives.