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Senior Ruby on Rails Developer at OnTheGoSystems. Location Information: Anywhere in the World. . . Headquarters:. Remote . URL:. . http://onthegosystems.com. . . We’re looking for a . Senior Ruby on Rails developer. with a curious, hands-on mindset who enjoys building reliable systems, owning meaningful features, solving complex problems, and . using AI tools. to improve development workflows, product quality, and user experience.. . What you’ll be working on:. . . . Building and maintaining Ruby on Rails systems used at scaleOwning features from implementation to production. . . . Writing and maintaining automated tests (unit, integration, E2E). . . . Investigating production issues, debugging complex problems, and helping design practical solutions. . . . Improving performance, reliability, and maintainability. . . . What we’re looking for:. . To succeed in this role, you’ll have:. . . . 4+ years of professional experience with Ruby on Rails. . . . Experience building and running production systems. . . . Strong backend skills, including databases, performance, and API design. . . . Solid experience writing and maintaining automated tests (including E2E). . . . Curiousity about AI technologies and use AI-powered tools to improve productivity, debugging, testing, research, or development workflows.. . . . Nice to have: . . . . Experience with React . . . . CI/CD, background jobs, or AWS experience. . . . Why Join . OTGS. ?. . . . Stable & self-funded: Founded in 2007, profitable, and independent.. . . . Industry leaders: Creators of . WPML. , the #1 multilingual plugin for WordPress, used on 1.5M+ sites. . . . Fully remote, async-friendly: Work from anywhere within EMEA hours. . . . Engineering-driven culture: Ownership, autonomy, testing, and thoughtful problem-solving. . . . Fair compensation and great benefits: Designed to support your well-being both inside and outside of work.. . . . You’ll enjoy this role if you:. . . . Take pride in ownership and accountability. . . . Care about testing and long-term code quality. . . . Are motivated by solving problems in complex systems. . . . Enjoy collaborative environments where kind and experienced people learn, investigate issues, and solve problems.. . . . Want to make a lasting impact on a product used by thousands of real customers? We would love to hear from you.. . To apply:. . https://weworkremotely.com/remote-jobs/onthegosystems-senior-ruby-on-rails-developer-2.