Sr Ruby on Rails Developer - Remote - ONLY MEXICO

About Scalepex Scalepex is a nearshore talent partner that helps global companies scale through high-quality, specialized teams across technology, operations, and customer experience. We focus on delivering exceptional customer service, strong performance, and long-term collaboration. As part of Scalepex, you’ll work with international clients, modern tools, and a supportive team committed to excellence. What You’ll Be Responsible For - Application Development: Build and maintain scalable web applications using Ruby and the Rails framework. - Back-End Logic & APIs: Implement server-side logic, develop RESTful APIs, and manage background jobs. - Database Management: Design and maintain database schemas, optimize queries, and work with PostgreSQL or MySQL. - Integrations: Connect applications with third-party APIs and integrate front-end components with backend processes. - Quality & Testing: Implement automated testing (RSpec, Minitest), participate in code reviews, and ensure code quality. - Troubleshooting: Identify and resolve bugs, bottlenecks, and performance issues. - Collaboration: Work with designers, product managers, and engineering teams in Agile/Scrum environments. - Deployment (Optional/Senior): Support CI/CD pipelines and deployments using AWS, Heroku, or similar platforms. Requirements What We’re Looking For - Strong proficiency in Ruby and Ruby on Rails, including MVC, ORM, and RESTful design. - Experience with relational databases (PostgreSQL, MySQL) and schema design. - Basic knowledge of front-end technologies (JavaScript, HTML5, CSS3) for integration purposes. - Proficiency with Git and version control best practices. - Strong analytical thinking and problem-solving skills. - Effective communication and ability to work in remote, cross-functional teams. - Bachelor’s degree in Computer Science, Software Engineering, or a related field — or equivalent hands-on experience. Nice-to-Haves - Experience with Redis, Sidekiq, or other background job tools - Familiarity with Docker - Experience deploying apps to AWS, Heroku, or other cloud environments - Exposure to CI/CD tools such as GitHub Actions, GitLab CI, or CircleCI Benefits Work Model - Remote role, open to candidates anywhere in Mexico - Contractor scheme - You will be a Scalepex employee working for an international client