Middle Full Stack Engineer, 3Commas

• 3+ years of commercial experience in full-stack or frontend development
• Expert-level proficiency in React, TypeScript, and Next.js
• Strong experience with Git and version control workflows
• Practical knowledge of responsive design principles and mobile-first development
• Experience with Styled-components or other CSS-in-JS libraries
• Strong skills in state management using Redux Toolkit and RTK Query
• Ability to write robust, maintainable, and well-tested code
• Excellent analytical and problem-solving skills with attention to detail
• Clear and confident communication skills in English (B2 or higher)
• Team-oriented mindset and willingness to collaborate cross-functionally
• Experience with Agile development processes, including story estimation and sprint participation
• Understanding and application of the “shift-left” testing approach

Desirable

• We’re looking for a Middle Full-Stack Engineer (Frontend-Focused) with strong React and TypeScript skills who’s passionate about creating user-centric, scalable applications.
• You'll work closely with product designers, backend engineers, and DevOps to deliver polished features — and have the opportunity to contribute to backend development in Ruby on Rails as you grow
• Develop and maintain responsive applications using React, TypeScript, and Next.js
• Implement intuitive, scalable front-end components based on business requirements and UI/UX designs
• Contribute to end-to-end feature development — including backend implementation in Ruby on Rails (with support for knowledge ramp-up)
• Drive epics from technical design through to production release, ensuring timely delivery
• Provide accurate estimates for tasks, considering dependencies and complexity
• Break down epics into actionable user stories in collaboration with the engineering manager
• Work closely with product designers to implement and maintain consistent, high-quality user experiences
• Ensure integration with backend services and APIs in collaboration with backend engineers
• Utilize Redux Toolkit and Redux Toolkit Query for effective state management and data fetching
• Write clean, maintainable code and comprehensive unit tests using Jest
• Participate in early-stage QA processes to ensure product quality (“shift-left” approach)
• Continuously improve development practices and stay current with modern trends in web development
• You’ll shape not just the UI, but how features function end-to-end — from wireframe to production release
• Expand your backend knowledge, explore DevOps, or mentor junior developers. We support your growth wherever you want to take it