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Frontend React Developer


Job Location:

Warsaw - Poland

Monthly Salary: Not provided by the employer
Posted: 16 September 2026 (3 hours ago)
Application Deadline: 14 December 2026
Vacancies: 1 Vacancy

Job Summary

Position Summary

We are looking for a passionate and experienced Senior Front-End Engineer to join our engineering team and help build modern scalable and high-performance web applications. You will collaborate with Product Managers UX Designers Architects and fellow Engineers to transform business requirements into intuitive user experiences while contributing to the technical direction of our front-end ecosystem.

This role is ideal for someone who enjoys solving complex technical challenges writing clean and maintainable code and continuously learning new technologies in a fast-paced Agile environment.

Key Responsibilities

Front-End Development

  • Design develop and maintain modern web applications using React and TypeScript.

  • Build reusable scalable and high-performance UI components.

  • Translate business and UX requirements into robust technical solutions.

  • Ensure responsive accessible and user-friendly interfaces.

Architecture & Engineering

  • Contribute to front-end architecture and technical design decisions.

  • Promote clean code principles best practices and coding standards.

  • Optimize application performance scalability and maintainability.

  • Participate in code reviews and mentor less experienced developers.

Testing & Quality

  • Develop automated unit integration and end-to-end tests.

  • Ensure high code quality using modern testing frameworks and CI/CD practices.

  • Identify and resolve technical issues throughout the software development lifecycle.

Collaboration

  • Work closely with Product Owners UX Designers QA Engineers and cross-functional development teams.

  • Participate in Agile ceremonies sprint planning estimation and retrospectives.

  • Contribute to continuous improvement initiatives and technical innovation.

Required Qualifications

Experience

  • 5 years of professional experience developing modern web applications.

  • Strong commercial experience with React and TypeScript.

  • Experience delivering complex front-end solutions in Agile environments.

  • Proven ability to work across multiple projects simultaneously.

Technical Skills

  • Expert knowledge of React.

  • Strong proficiency in TypeScript and modern JavaScript (ES6).

  • Experience with Angular is considered an advantage.

  • Solid understanding of state management (Redux).

  • Experience with and front-end tooling.

  • Hands-on experience with testing frameworks such as Jest Cypress Playwright and Vitest.

  • Familiarity with Vite and modern build tools.

  • Experience with CSS-in-JS and responsive UI development.

  • Understanding of Server-Side Rendering (SSR).

Soft Skills

  • Strong analytical and problem-solving abilities.

  • Excellent communication and stakeholder management skills.

  • Self-driven proactive and eager to learn new technologies.

  • Ability to thrive in a collaborative fast-paced engineering environment.

Preferred Qualifications

  • Bachelors degree in Computer Science or a related field.

  • Experience with Micro Frontend architecture.

  • Knowledge of reactive programming using RxJS.

  • Experience with Webpack Vite and modern front-end build pipelines.

  • Experience working across the full Agile software development lifecycle.

  • Exposure to enterprise-scale web applications.

What Success Looks Like

  • Delivering high-quality scalable and maintainable front-end applications.

  • Driving technical excellence through clean architecture and best engineering practices.

  • Building intuitive user experiences that meet business needs.

  • Collaborating effectively with cross-functional teams to deliver features on time.


About Company

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At Infotree, meeting your career needs is a top priority. Client satisfaction is largely dependent on the resources we can provide, and we take pride in our delivery. We have a supportive team in place to give quality people a chance to grow and challenge themselves in their roles whi ... View more

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