Senior Frontend Engineer

Senior Frontend Engineer Freelance Must have an EU passport

Your Missi

onJoin a dynamic and agile squad of skilled professionals and contribute to the continuous enhancement and modernization of high-impact web applications for a prominent international public institution based in Luxembourg. This is a unique opportunity to be involved from day one in a strategic initiative driven by modern technologies, innovative methodologies, and a strong engineering mindse

t.As a (Senior) Frontend Engineer, you will play a key role in delivering high-performing, responsive, and user-centric web platforms. You will be responsible for designing, developing, and maintaining robust frontend components, working closely with backend engineers, UI/UX designers, business analysts, and product owners to build scalable, secure, and intuitive solution

s.If you thrive in collaborative environments and are eager to grow within a technically driven team, this opportunity is for yo

u.Key Responsibiliti

• esFeature Developme
• ntDevelop scalable and high-performance web applications using modern JavaScript frameworks, particularly Reac
• t.Code Quality & Architectu
• reEnsure frontend components are reusable, maintainable, and thoroughly tested, following industry best practice
• s.Agile Collaborati
• onActively contribute to agile ceremonies including daily stand-ups, sprint planning, and code reviews, demonstrating ownership, adaptability, and initiativ
• e.Technical Alignme
• ntWork closely with both technical and non-technical stakeholders to ensure alignment on architecture and a shared understanding of frontend requirement

s.Technology Stack & Experien

• ceSignificant professional experience in software engineering with a strong focus on frontend/UI developme
• ntAdvanced hands-on experience with JavaScript and React, including state management, hooks, and the modern ecosyst
• emSolid knowledge of core web technologies (HTML5, CSS3, responsive design, performance optimizatio
• n)Experience with modern development workflows, including Git, build tools, and package manage
• rsStrong understanding of RESTful APIs and integration patter
• nsFluent English is requir

edNice to Ha

• veExperience with frontend testing frameworks such as Jest, React Testing Library, or Cypre
• ssFamiliarity with CI/CD pipelines and DevOps tools (e.g., Azure DevOps, Docke
• r)Experience in developing accessible (WCAG-compliant) interfaces, particularly for public-facing or institutional platfor