Are you passionate about building high-performance, user-friendly web applications? We are looking for a Senior Front-End Developer with expertise in React.Js to join our team and work on cutting-edge solutions for the travel and hospitality domain.This role offers the opportunity to work with modern technologies and contribute to applications used by millions of customers worldwide. At Sigma Software, we value innovation, quality, and collaboration, and we provide an environment where your expertise will make a real impact.CUSTOMEROur client is a global leader in the hospitality and travel industry, operating some of the world's most innovative cruise brands. The company delivers exceptional vacation experiences to millions of guests worldwide and is recognized for its cutting-edge solutions, award-winning service, and commitment to sustainability.PROJECTThe project involves developing and maintaining large-scale distributed systems for high-load, customer-facing environments. The team works on modern digital platforms, personalized guest experiences, mobile applications, and data-driven solutionsJob DescriptionDevelop and maintain scalable web applications using React.Js and TypeScriptBuild responsive, user-friendly, and reusable UI components following best practicesIntegrate frontend applications with APIs and backend servicesCollaborate closely with product, backend, and UX teams to clarify requirements and deliver solutionsWrite clean, maintainable, and efficient code with strong testing and debugging practicesTroubleshoot and resolve issues across frontend applications and user flowsParticipate in code reviews, knowledge sharing, and continuous improvement initiativesSupport estimations, problem-solving, and technical discussions in a fast-paced environmentQualifications7+ years of experience in front-end development with React.JsStrong understanding of JavaScript (ES6+), TypeScript, Next.Js, HTML5, and CSS3Hands-on experience with GraphQL (Apollo Client or similar)Familiarity with React Hooks, Context API, and Redux (Redux-Saga optional)Experience with RESTful APIs and third-party integrationsUnderstanding of component-based architecture and state managementKnowledge of performance optimization and debugging techniquesWILL BE A PLUSExperience with CI/CD pipelinesFamiliarity with cloud platforms (AWS, Azure, GCP)Knowledge of automated testing frameworksUnderstanding of accessibility standards in web developmentExperience in travel or hospitality domain projects