Senior React and React Native Frontend Engineer | Remote

Jobgether; Poland; On-site; PLN 180,000 - 250,000; Full time

Benefits offered by this job

Fully remote work

Office access where available

Flexible schedule

Career development

International team environment

Team events

Job summary

Jobgether is seeking a Senior Frontend Developer (React & React Native) based in Poland to build modern web and mobile experiences. You will own frontend components, refactor code for performance, and collaborate across teams to deliver scalable solutions.

Responsibilities include creating UI components, integrating REST/GraphQL, and building RN SDKs for cross‑platform apps; strong ownership and proactive communication are required.

Qualifications

• 7+ years of professional experience as a Frontend Engineer or JavaScript Developer.
• Strong foundation in pure JavaScript and extensive experience building modern frontend applications.
• Advanced proficiency with React 18+, including hooks, context, and modern React development patterns.
• Expert-level TypeScript experience, including advanced types and strict configuration environments.
• Strong knowledge of state management technologies such as Redux, MobX, Zustand, or comparable solutions.
• Proven experience building Single-Page Applications (SPAs) and Progressive Web Applications (PWAs).
• Strong experience integrating RESTful and GraphQL APIs.
• Familiarity with modern frontend build tools such as Webpack, Vite, and Rollup, as well as CI/CD pipelines.
• Strong understanding of browser rendering behavior and frontend performance optimization.
• Experience with automated testing frameworks such as Jest, Cypress, or equivalent technologies.
• 1-2+ years of professional React Native development experience.
• Hands-on experience developing React Native Software Development Kits (SDKs) for cross-platform applications.
• Upper-Intermediate English proficiency or higher.
• Experience with micro frontends, monorepos, or component libraries such as Storybook or Bit is a plus.
• Knowledge of design systems and technologies such as Material UI, Tailwind, or similar frameworks is a plus.
• Exposure to WebAssembly, WebSockets, or real-time applications is a plus.
• Experience integrating third-party tools and libraries is a plus.
• Ability to understand business requirements and translate them into clear, practical technical requirements.
• Strong adaptability and ability to remain effective when priorities change.
• Proactive communication style, strong ownership, and willingness to take initiative.
• Fast-learning mindset and enthusiasm for acquiring new technical knowledge.

Responsibilities

• Assess business requirements from a technical perspective and determine practical implementation approaches within reasonable timelines.
• Develop new user interface components and enhance existing web applications using modern React and TypeScript patterns.
• Build and maintain responsive, high-quality websites and front-office features.
• Participate in mobile application development using React Native, including cross-platform solutions and reusable software development kits (SDKs).
• Refactor and optimize existing code to improve maintainability, scalability, and overall application quality.
• Optimize frontend components and applications for strong performance across different browsers and devices.
• Identify, troubleshoot, and resolve bugs across existing projects and production environments.
• Work with state management solutions such as Redux, MobX, or Zustand to create reliable and maintainable application architectures.
• Integrate and work with RESTful and GraphQL APIs as part of frontend and mobile application development.
• Implement and maintain automated tests using tools such as Jest and Cypress.
• Contribute to frontend build processes, CI/CD pipelines, and modern development workflows.
• Collaborate proactively with team members and communicate technical considerations, progress, challenges, and solutions clearly.
• Continuously improve development processes and contribute ideas that enhance engineering efficiency and product quality.
• Adapt to changing priorities, learn new technologies quickly, and contribute effectively in a dynamic environment.

Skills

JavaScript

React 18+

React Native

TypeScript

Redux/MobX/Zustand

SPA & PWA

REST/GraphQL

Testing: Jest/Cypress

Webpack/Vite/Rollup

CI/CD

Storybook/Bit

Tools

Jest

Cypress

WebPack

Vite

Rollup

Storybook

Bit

Job description

Jobgether is seeking a Senior Frontend Developer (React & React Native) based in Poland to build modern web and mobile experiences. You will own frontend components, refactor code for performance, and collaborate across teams to deliver scalable solutions.

Responsibilities include creating UI components, integrating REST/GraphQL, and building RN SDKs for cross‑platform apps; strong ownership and proactive communication are required.