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Intecfy - Senior Frontend / React Developer - Freelance

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Front-End Developer
💰 Negotiable
📍 Madrid, Spain
Closing date: a month left
Twine Jobs Twine
Based in Manchester, United Kingdom
Last online 4 months ago

Front-End Developer is needed in Madrid, Spain.

Client: Intecfy

Location: Madrid, Madrid, ES

Contract: Contract

Job Description

Intecfy is recruiting a Senior Frontend / React Developer - Freelance for our client based in The Netherlands, a product-focused company building modern web applications that help users manage day-to-day digital workflows with fast, clean, and reliable interfaces. The team ships frequently and is expanding to support new features, improve performance, and scale the platform.

Responsibilities

  • Develop and maintain web interfaces using React and TypeScript
  • Translate UI designs into reusable components with consistent styling and responsiveness
  • Integrate and consume REST APIs, manage client-side state and data flows
  • Optimize performance, accessibility, and cross-browser compatibility
  • Apply best practices, write clean maintainable code, and contribute through unit tests and code reviews
  • Contribute to an established Agile process, participating in daily stand-ups, sprint planning, and retrospectives
  • Investigate and resolve production issues in collaboration with product and support teams when needed

Requirements

  • Minimum 6 years experience as a Frontend Developer
  • Minimum 3 years of hands-on React experience in production environments
  • Strong knowledge of TypeScript, modern JavaScript, and component-based architecture
  • Solid CSS skills and experience with scalable styling approaches and UI component libraries
  • Proven experience consuming JSON REST APIs and managing state in React applications
  • Independent, proactive work style with clear communication skills suitable for remote collaboration
  • Located in Europe and ready to work as a freelance
  • Great communication skills in English, minimum B2 level is required
  • Willingness to travel 2 to 3 times per year to the client’s offices in the Netherlands (expenses covered by the client)
  • Nice to have but not required: accessibility standards (WCAG), performance optimization (Core Web Vitals), Docker

Benefits

  • Competitive hourly rate
  • Long term freelance contract with stable workload
  • Flexible workload 32 or 40 hours per week
  • Remote work within Europe
  • Travel to the Netherlands 2 to 3 times per year with all expenses covered by the client
  • Access to Intecfy’s freelance opportunities
Posted 3 hours ago

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