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Frontend React Developer

Frontend Developer

Posted Jul 8 (104 days ago) · Last updated Oct 20 · Open 104 days, longer than the usual 12 for this role

Key facts

Senior React frontend role in Warsaw hybrid; needs 5+ years and strong TypeScript experience.

How this salary compares

Estimated €5,000 - €6,000Benchmarked against senior roles

Too few postings state a salary to show this.

Monthly salary comparison for Frontend Developer
MarketLower bound (25th percentile)MedianUpper bound (75th percentile)
senior roles€5,000 per month€5,500 per month€6,000 per month
This offer€5,000 per month€5,500 per month€6,000 per month

Estimated from 1 comparable listing

Where and how
Warsaw, PolandHybridSenior
Languages required
English
Education
Bachelor
Experience
5 years experience

Original job ad

As published by Infotree Global Solutions Oy

Open the ad
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 Node.js 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 • Bachelor's 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.

This is the employer's own ad. Pay, requirements and the other details on this page are our reading of it, not facts the employer confirmed.

About the role

Summarised by JobCrawls from the job ad above.

Requirements

  • At least 5 years of professional web application development experience
  • Strong commercial React and TypeScript experience
  • Experience delivering complex front-end solutions in Agile environments
  • Ability to work across multiple projects
  • Strong analytical, problem-solving, communication and stakeholder-management skills
  • Self-driven, proactive and eager to learn

Responsibilities

  • Develop and maintain React and TypeScript web applications
  • Build reusable, scalable UI components and accessible interfaces
  • Contribute to front-end architecture and technical decisions
  • Optimize performance and maintainability; review code and mentor developers
  • Develop automated tests and resolve software lifecycle issues
  • Collaborate with cross-functional teams and participate in Agile ceremonies

Skills & technologies

ReactTypeScriptJavaScriptAngularReduxNode.jsJestCypressPlaywrightVitestViteCSS-in-JSServer-side RenderingCI/CDMicrofrontend ArchitectureRxJSWebpackAgile Development

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About Infotree Global Solutions Oy

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Infotree Global Solutions Oy
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About the employer

Infotree Global Solutions describes a supportive team of recruiters and consultant-care representatives and says it helps people grow in their roles. Infotree Poland Sp. z o.o. is part of the group.

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