Position Overview: We’re seeking a Senior Full Stack Developer with solid experience in React and Ruby on Rails to join our team. You’ll play a key role in developing the front-end and back-end of our platform, technical integrations, working on complex UI features, ensuring responsive design, and integrating with backend logic to deliver a seamless experience. This is a hands-on role where you'll directly contribute to the product’s success. Key Responsibilities: Front-End Development: Build complex UI components using React, Redux, Webpack, and Sass, ensuring responsive, high-performance designs. Back-End Development: Implement server-side logic using Ruby on Rails, work with relational databases (PostgreSQL), perform background processing, and optimize backend performance. Feature Development: Consistently plan, prototype, and deliver complex features that enhance both UI and server-side interactions. Legacy Code: Maintain, upgrade, and refactor existing Ruby on Rails code for better performance and scalability. Testing & Quality: Write comprehensive tests for front-end and back-end functionality, ensuring 100% coverage of code delivered. Collaboration: Work closely with product managers, designers, and fellow developers to align on feature delivery and technical specifications. Code Reviews: Participate in peer code reviews and adhere to SignWell’s coding standards to ensure clean, maintainable code. Qualifications: Experience: 5+ years of full-stack development with Ruby on Rails and modern JavaScript frameworks like React. Hands-on experience with SQL, relational databases (PostgreSQL preferred), and background/parallel processing. Strong understanding of responsive design, HTML5, CSS, and Sass. Experience maintaining and upgrading legacy code in a production environment. Proficiency in testing frameworks and ensuring high-quality code through automated testing. Skills: Proven ability to deliver elegant, concise code through well-structured pull requests. Excellent communication skills with experience working in remote teams. Problem-Solving: Strong analytical and debugging skills with a proactive approach to identifying and solving issues. Communication: Excellent written and verbal communication skills in English. Bonus Skills: Knowledge of cloud platforms (AWS) and DevOps practices. Why SignWell? Impact: Contribute to a fast-growing platform that simplifies e-signing for thousands of businesses. Culture: Work with a close-knit, innovative, and remote-first team. Growth: Opportunity for professional development in a rapidly evolving SaaS company. Flexibility: Enjoy the benefits of a fully remote position in Latin America, Mexico, or Canada. Job Type: Full-time Pay: $106,000.00-$120,000.00 per year Benefits: Paid time off Schedule: Monday to Friday Application question(s): Do you have experience with startups? Experience: Full-stack development: 5 years (required) Work Location: Remote