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Xcede Logo Xcede · IT - Software Development

Freelance Frontend Developer

Hungary, Budapest 250.00 - 350.00 EUR / Day · Job Posted May 27, 2026
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Job Description

A major European telecommunications group is establishing a new technology hub in Budapest to deliver engineering excellence, on-site support, and knowledge exchange across its European programmes. As Lead Frontend Developer, you will own the frontend layer of a modern Java-based microservices platform — setting the standard for UI architecture, leading a team of frontend engineers, and working closely with backend developers, architects, and designers in a mission-critical telco environment. This is a technical leadership role: you will write code, set direction, and raise the bar across the team.

Job Responsibility

  • Lead frontend architecture decisions across Angular and/or React / TypeScript codebases
  • Design and develop responsive, scalable, enterprise-grade UIs
  • Define frontend coding standards, component libraries, and reusable design systems
  • Conduct code reviews and mentor junior and mid-level frontend developers
  • Collaborate closely with backend developers on REST API integration and data contracts
  • Work with UI/UX designers to translate mockups into production-ready interfaces
  • Integrate frontend systems into CI/CD pipelines using GitLab, Jenkins, or equivalent
  • Contribute to sprint planning and technical design discussions within agile Scrum/Kanban teams
  • Ensure frontend solutions meet performance, accessibility, and security standards
  • Drive continuous improvement of frontend tooling, processes, and practices

Requirements

  • Proven experience as a Lead or Senior Frontend Developer in enterprise environments
  • Expert-level Angular (v7–17) and/or React with TypeScript
  • Strong proficiency in JavaScript, HTML, CSS/SCSS
  • Experience building and maintaining component libraries and design systems
  • REST API integration experience — working closely with Java/Spring Boot backends
  • Familiarity with state management: NgRx, NGXS, Redux or equivalent
  • Version control and CI/CD: GitLab, GitHub, Jenkins or equivalent
  • Experience with modern frontend tooling: npm, ESLint, Docker
  • Agile mindset — hands-on Scrum or Kanban experience
  • Telecommunications sector experience — strong advantage
  • Fluent English — written and verbal
  • Interest in and practical exposure to AI-assisted development tooling

Nice to have

  • Figma or equivalent design tool experience
  • Experience with Nx monorepo architecture
  • Familiarity with backend technologies (Java / Spring Boot) — ability to read and understand API contracts
  • Graylog or equivalent observability/logging platform
  • German language skills (beneficial, not mandatory)
  • Experience establishing frontend standards within a newly built team or hub
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