Sigma Software

travel and hospitality

SeniorFront-EndDeveloper(React.js)

São Paulo, Brazil FULL TIME
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for mid candidates.

The Brief

“Senior Front-End Developer (React. js) at Sigma Software. Skills: React. js, TypeScript, GraphQL, RESTful APIs. Develop scalable web applications. Maintain scalable web applications”

What You'll Achieve.

high-performance web applications; user-friendly web applications; exceptional vacation experiences

Industry & Context.

travel and hospitality
Problems you'll solve

problem-solving

What They're Looking For.

Must Have

React. js, JavaScript (ES6+), TypeScript, Next. js, HTML5, CSS3, GraphQL (Apollo Client or similar), React Hooks, Context API, Redux, RESTful APIs, component-based architecture, state management, performance optimization, debugging techniques

Nice to Have

CI/CD pipelines, cloud platforms (AWS, Azure, GCP), automated testing frameworks, accessibility standards, travel or hospitality domain projects, Redux-Saga

What You'll Do.

Develop scalable web applications

Maintain scalable web applications

Build responsive UI components

Build user-friendly UI components

Build reusable UI components

Integrate frontend applications with APIs

Integrate frontend applications with backend services

Write maintainable code

How You'll Work.

Team & Collaboration

Collaborate with product teams; Collaborate with backend teams; Collaborate with UX teams; knowledge sharing

Process & Methodology

Support estimations, technical discussions

Full Job Description

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. CUSTOMER Our 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. PROJECT The 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 solutions * Develop and maintain scalable web applications using React.js and TypeScript * Build responsive, user-friendly, and reusable UI components following best practices * Integrate frontend applications with APIs and backend services * Collaborate closely with product, backend, and UX teams to clarify requirements and deliver solutions * Write clean, maintainable, and efficient code with strong testing and debugging practices * Troubleshoot and resolve issues across frontend applications and user flows * Participate in code reviews, knowledge sharing, and continuous improvement initiatives * Support estimations, problem-solving, and technical discussions in a fast-paced environment ## Qualifications * 7+ years of experience in front-end development with React.js * Strong understanding of JavaScript (ES6+), TypeScript, Next.js, HTML5, and CSS3 * Hands-on experience with

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