Senior Rails Developer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Rails Developer based in the United States. This role offers the opportunity to build and evolve scalable Ruby on Rails applications in a modern, distributed environment. You will work across multi-tenant architectures and multi-database systems while developing reliable integrations with external platforms. The position combines backend development, data synchronization, background processing, testing, and performance optimization. You will collaborate closely with other developers to deliver new capabilities and solve complex technical challenges. Strong engineering practices, automated testing, code reviews, and continuous improvement are central to the role. This is a strong opportunity for an experienced Rails developer who enjoys solving technical problems and building dependable SaaS applications.

You will be responsible for designing, developing, maintaining, and optimizing Rails applications while contributing to technical quality and reliable integrations across the platform. Design, develop, and maintain scalable Ruby on Rails applications within multi-tenant, multi-database environments. Develop and optimize integrations with external CRM systems and other third-party platforms using APIs and webhooks. Build and maintain background jobs supporting data synchronization, order processing, and outbound workflows. Collaborate with team members to deliver new features and resolve technical challenges. Write and maintain comprehensive automated tests to ensure application reliability and code quality. Apply automated linting and other development quality controls. Participate in code reviews and contribute to architectural decisions. Troubleshoot issues and optimize application performance across the technology stack. Contribute to CI/CD workflows and continuous improvements to development practices. Requirements: The ideal candidate is an experienced Ruby on Rails engineer with strong backend development skills and hands-on experience building scalable applications, integrations, and asynchronous workflows. You should be comfortable working collaboratively, contributing to architectural discussions, and maintaining high standards for testing and code quality. 5+ years of professional experience developing with Ruby on Rails. Experience building and maintaining multi-tenant Rails applications and working with database partitioning. Strong experience integrating external APIs and managing webhook-based data flows. Proficiency with background job frameworks such as ActiveJob and Sidekiq. Familiarity with modern Rails development practices, automated testing, and CI/CD workflows. Experience with frontend build tools and modern web development practices. Strong troubleshooting, analytical, and problem-solving skills. Excellent communication skills and the ability to collaborate effectively with a development team. Experience in event management, e-commerce, or SaaS environments is a plus. Knowledge of email marketing platforms and third-party integrations is advantageous. Familiarity with containerization and cloud deployment technologies. Benefits: Fully remote position based in the United States. Full-time employment opportunity. Opportunity to work on scalable, multi-tenant SaaS applications. Exposure to complex API, CRM, webhook, and data synchronization integrations. Opportunity to contribute to architecture, code quality, testing, and performance optimization. Collaborative environment with opportunities to solve challenging technical problems.

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