Senior Front-End Engineer

9 hours ago

Bucharest, Bucureşti, Romania ARNIA Full time €40,000 - €80,000 per year

About the Role

We are looking for a Senior / Expert Front-End Developer to join a cross-functional international team working on a large-scale collectors' marketplace platform used by millions of passionate users worldwide. This is a front-end–focused position, ideal for someone who enjoys crafting high-quality, scalable user interfaces and improving existing front-end architecture.

You'll work closely with international engineering teams to modernize and replatform the existing system into a more efficient, maintainable, and visually cohesive experience.

Modern stack:

  • React /
  • TypeScript & JavaScript (ES6+)
  • SCSS / CSS Modules
  • Monorepo architecture
  • Storybook / Chromatic for visual testing
  • Automated unit, accessibility, and end-to-end testing
  • Lighthouse performance analysis

Responsibilities

  • Develop and maintain robust front-end features for a global web platform.
  • Participate in architecture design and code reviews to ensure consistency and high quality.
  • Collaborate with distributed teams (including US- and EU-based colleagues) to enhance platform performance and usability.
  • Build new UI components using a design system while extending it with custom solutions where needed.
  • Contribute to the migration of legacy front-end implementations to a modern React-based stack.
  • Ensure accessibility and performance best practices are applied throughout the front-end codebase.
  • Support automated testing and continuous integration practices.

Required Skills

  • 6+ years of experience in front-end development (React and TypeScript).
  • Strong understanding of component-based architecture and modern web standards.
  • Proven experience working in large-scale, multi-team environments.
  • Excellent collaboration and communication skills in remote/distributed setups.
  • Proactive, quality-focused mindset with attention to maintainable and testable code.

Nice-to-Have Skills

  • Experience with legacy migrations
  • Familiarity with design system implementation and component libraries.
  • Accessibility expertise (WCAG standards).
  • AWS or other cloud experience.
  • Exposure to C#, Java, .NET Core, or event-driven architectures.

Working Setup

  • Occasional sync meetings aligned with US working hours (approx. once every 1–2 weeks).
  • Collaborative international team environment.

Share this job:

relocation package

flexible working hours

performance bonuses

job rotation

referral program

medical benefits

trainings

international work experience

attractive projects

learning through Arnia Academy

competitive compensation packages

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