Senior Full-Stack Developer, Node.js, React

Role Overview

• Develop and maintain back-end services using Node.js and TypeScript
• Design, implement, and evolve RESTful APIs
• Maintain and extend existing PHP and Laravel services
• Build and maintain complex front-end applications using React
• Collaborate closely with the client’s team on feature development and technical decisions
• Ensure code quality through testing, code reviews, and best engineering practices
• Work with existing and legacy systems, improving stability and maintainability
• Take ownership of features end-to-end, from implementation to delivery
• Contribute to performance, reliability, and scalability improvements across the full stack

Requirements

• Deep, hands-on experience with Node.js in production environments
• Strong knowledge of TypeScript and modern JavaScript
• Experience designing and implementing RESTful APIs
• Understanding of backend architecture patterns (layered architecture, modular design, separation of concerns)
• Solid understanding of asynchronous programming, the event loop, and performance considerations in Node.js
• Experience working with SQL databases, including query optimization, transactions, and migrations
• Knowledge of authentication and authorization mechanisms (JWT, OAuth, role-based access)
• Experience with error handling, logging, and monitoring in back-end services
• Ability to write maintainable and testable code (unit and integration tests)
• Practical experience working with PHP and Laravel in production environments
• Ability to maintain and extend existing Laravel-based services
• Strong experience building complex applications with React
• Confident use of modern React patterns (hooks, context, controlled components)
• Experience with state management solutions (Redux, React Query, or similar)
• Ability to design and implement scalable component architectures
• Strong understanding of front-end performance optimization (memoization, rendering control, code splitting)
• Experience working with forms, validation, and complex UI state
• Knowledge of accessibility (a11y) and cross-browser compatibility
• Experience integrating front-end applications with APIs and handling asynchronous data flows
• Ability to maintain consistent UI/UX in large codebases

Tech Stack

• JavaScript
• Laravel
• Node.js
• PHP
• React
• Redux
• SQL
• TypeScript

Benefits

• Competitive salary, room for development and growth.
• Possibility to work in the Bratislava and Kyiv offices or fully remotely.
• Loyal management, interesting tasks, constant support.
• Medical insurance (optional).
• English courses.
• Technical equipment providing.
• Paid vacations 20 workdays, paid sick leave, regular salary reviews;
• Flexible schedule and ability to manage your working hours;
• Support your personal growth and skills upgrading.
• The great environment inside the team, support of initiatives, and ability to contribute to the common goal.