Sr Software Engineer - APIs & Integrations (Remote)

Firstup is seeking a Sr. Software Engineer to join the team responsible for public APIs, Agentic tools, and enterprise integrations. You will advance scalable architectures, improve availability, and leverage Generative AI in daily workflows. You will work across frontend, backend, and data layers in a multi-tenant cloud environment, contributing to production health and incident response while collaborating with cross-functional partners to deliver customer value.