Senior Engineer, Full-Stack (Ruby on Rails) in New York at Jobgether

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.

• Build, maintain, and enhance the product across the technology stack, including Ruby on Rails backends, APIs, dealer-facing web applications, and React Native mobile applications.
• Own important architectural decisions and contribute to the long-term technical direction of the platform.
• Design, implement, test, deploy, and maintain reliable backend and frontend features from concept through production.
• Contribute to APIs and SDKs that support the broader developer platform and enable integrations.
• Collaborate directly with customers and dealer groups to understand workflows, identify needs, and translate feedback into practical product improvements.
• Partner closely with product stakeholders to evaluate technical feasibility, provide delivery estimates, and shape feature development.
• Develop and maintain high-quality Ruby and JavaScript/TypeScript code using modern engineering practices.
• Create and maintain integrations with third-party APIs and external services.
• Use data and analytical thinking to evaluate product and technical decisions, balancing customer needs, engineering trade-offs, and business priorities.
• Help improve engineering practices and contribute technical guidance and mentorship within a collaborative, autonomous environment.

• 5+ years of experience building and maintaining production web applications with Ruby on Rails and RSpec.
• Strong proficiency with JavaScript or TypeScript and React, with React Native experience particularly valuable.
• Solid experience working with PostgreSQL and relational data models.
• Familiarity with designing, building, consuming, and maintaining REST APIs.
• Experience taking ownership of technical projects and making architectural decisions across a full-stack environment.
• Comfortable using AI-assisted coding tools to improve development efficiency and productivity.
• Strong analytical and problem-solving abilities, with the judgment to ask the right questions when working through complex requirements.
• Excellent communication skills and the ability to explain technical concepts clearly to product, business, and customer stakeholders.
• Ability to work autonomously in a small, rapidly evolving team while collaborating effectively across functions.
• Experience with React Native or other mobile development is a plus.
• Exposure to GraphQL and experience with B2B SaaS products are advantageous.
• Must be legally authorized to work in the United States; visa sponsorship is not available.

• Annual compensation of $120,000–$130,000.
• Remote work opportunity for candidates located anywhere in the United States.
• 401(k) plan with a 5% employer match.
• Medical, dental, and vision insurance.
• Paid holidays and paid time off.
• Paid parental leave.
• Monthly allowance to support work-related needs and expenses.
• Occasional travel may be required, including team planning activities.
• Opportunity to work with a small, fast-moving team where engineers have significant ownership and influence over product and technical direction.