Senior React Developer (m/f)

ARHS Group, part of Accenture, is looking for a Senior React Developer (m/f) to join one of our client teams onsite in Luxembourg within a European institutional environment.

In this role, you will contribute to the development of modern web applications and user-facing platforms, helping deliver intuitive, scalable, and high-quality digital solutions. You will work closely with business analysts, developers, testers, and technical leads in an Agile environment.

THE WORK:

• Design, develop, test, and maintain frontend web applications using React and JavaScript.
• Build reusable components and contribute to the evolution of shared UI libraries and design systems.
• Collaborate with business analysts, technical leads, and development teams to translate requirements into high-quality user interfaces.
• Ensure applications are responsive, accessible, and optimized for performance.
• Develop and maintain automated tests to ensure reliability and quality.
• Participate in code reviews and promote frontend development best practices.
• Deploy, monitor, and support applications running in containerized environments, both on-premises and in the cloud.
• Contribute to continuous improvement initiatives across development and delivery processes.

Onsite at client site: This role requires an onsite presence with our clients and partners to support project delivery and strengthen client relationships.

Our roles require in-person time to encourage collaboration, learning, and relationship-building with clients, colleagues, and communities. As an employer, we will be as flexible as possible to support your specific work/life needs.

HERE’S WHAT YOU’LL NEED:

• Strong experience in frontend development using React and JavaScript.
• Solid knowledge of:

• React (functional components, hooks, Context API)
• JavaScript
• HTML5 and CSS3
• REST APIs and JSON

• Experience building reusable components and contributing to shared design systems.
• Experience with frontend testing tools such as Jest and React Testing Library.
• Familiarity with modern build and package management tools such as NPM and Vite.
• Experience working with CI/CD pipelines, ideally using Azure DevOps.
• Understanding of responsive design principles and modern frontend development practices.
• Strong communication and collaboration skills.
• Fluency in English (written and spoken).

As part of our security and compliance procedures, candidates will be required to undergo a criminal background check prior to employment.