Senior Engineer, Full-Stack (Ruby on Rails)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Engineer, Full-Stack (Ruby on Rails) based in United States. This is an opportunity for a senior, backend-oriented full-stack engineer to take meaningful ownership of a growing B2B SaaS product. You’ll work across backend services, APIs, web applications, and mobile experiences while helping shape technical direction. The role combines hands-on engineering with product thinking, customer collaboration, and architectural decision-making. You’ll have the autonomy to take features from initial concept through production and ongoing improvement. Working within a small, fast-moving team, you’ll help solve complex problems while raising engineering standards. Your work will directly influence tools that help automotive professionals make faster, more informed business decisions.