Senior Full Stack Developer - RoR/React (LATAM, Remote)

We are looking for a Lead/Senior Full Stack Engineer to help to build, maintain, and scale its Ruby on Rails backend services, APIs, integrations, and React-based frontend features .

This is a backend-heavy full stack role: approximately 70% backend and 30% frontend . The ideal candidate has 5–7+ years of software engineering experience , strong Ruby on Rails expertise, solid React skills, and the ability to work independently in a fast-paced remote environment.

Responsibilities

• Develop and maintain backend services using Ruby on Rails .
• Build and improve frontend features using React .
• Support third-party integrations, including payment and e-commerce platforms.
• Troubleshoot backend, database, frontend, and integration issues.
• Collaborate with QA on testing and release validation.
• Participate in technical planning, architecture discussions, code reviews, and audits.
• Improve systems through refactoring, upgrades, and performance optimization.
• Use AI-assisted development tools to improve productivity, testing, debugging, and documentation.

Requirements

• 5–7+ years of software engineering experience.
• Strong experience with Ruby on Rails .
• Solid experience with React , JavaScript/TypeScript, HTML, and CSS.
• Strong SQL and relational database fundamentals.
• Experience with REST APIs and third-party integrations like Stripe API and Shopify API .
• Experience with automated testing or TDD practices.
• Strong debugging, analytical, and problem-solving skills.
• Understanding of web application performance and security best practices.
• Familiarity with AI-assisted development tools such as GitHub Copilot, Cursor, ChatGPT, Claude, or similar .
• Excellent communication, self-organization, and remote collaboration skills.