[Job 29232] Senior Node/React Developer, Rio de Janeiro/RJ

Description

Job Summary: Develop scalable technological solutions with a focus on optimal user experience, writing clean code and collaborating to ensure project success. Key Highlights: 1. Focus on creating the best user experience for end users 2. Collaborative work with multidisciplinary teams 3. Solving complex problems and proposing innovative solutions We are specialists in **digital transformation**, combining human expertise with AI to build scalable tech solutions. With over 8,000 CI\&Ters worldwide, we have partnered with more than 1,000 clients throughout our 30-year history. Artificial Intelligence is our reality. **Important**: If you reside in the Metropolitan Region of Campinas, your physical presence at our city offices is mandatory, per our current attendance policy. **Your mission:** * Collaborate with CI\&T to serve a client in the Media industry; * Consistently strive to deliver the best possible user experience for end users; * Write clean, well-tested, easily maintainable code following industry best practices; * Design solutions using appropriate frameworks; * Identify opportunities for improvement; * Collaborate closely with other team members—including developers, designers, and stakeholders—to ensure project success; * Conduct code reviews both as reviewer and author, ensuring quality and functionality of developed features; * Maintain a stable and productive development environment; * Be open to learning widely adopted tools within the technology stack; * Actively participate in solving complex problems, identifying improvement opportunities, and proposing innovative solutions; * Monitor application behavior in production using key health and performance metrics available in monitoring tools. Derive insights for improvements and understand anomalies based on these metrics. **Requirements:** * Availability for hybrid work in Rio de Janeiro/RJ. * Solid knowledge of JavaScript and mastery of its object-oriented and functional paradigms; * Solid knowledge of the Git version control system; * Solid knowledge of HTML and CSS; * Experience with responsive design (media queries, relative properties, flexbox, CSS Grid); * Solid knowledge of NodeJS/npm; * Solid knowledge of REST API design (preferably using the Express framework); * Understanding of design patterns (Creational, Structural, Behavioral); * Mastery of software development best practices (DRY, KISS, TDA, SoC, SOLID); * Understanding of microservice architecture; * Solid knowledge of the React library; * Knowledge of Context API; * Knowledge of the Redux library and its use for state management with React; * Knowledge of SPAs delivered via Server-Side Rendering; * Knowledge and hands-on experience with Unit Testing in JavaScript and Jest; * Experience with a CI/CD tool (preferably GitLab CI); * Familiarity with lint/hint tools (preferably ESLint); * Knowledge of containers, such as Docker; **Our Benefits:** * Health and dental insurance; * Meal and food allowance; * Childcare assistance; * Extended parental leave; * Partnerships with gyms and health & wellness professionals via Wellhub (Gympass, TotalPass); * Profit Sharing Program (PLR); * Life insurance; * Continuous learning platform (CI\&T University); * Discount club; * Free online platform dedicated to promoting physical health, mental well-being, and overall wellness; * Pregnancy and responsible parenting courses; * Partnerships with online course platforms; * Language learning platform; * And many more More details about our benefits here: https://ciandt.com/br/pt\-br/carreiras At CI\&T, inclusion begins at first contact. If you are a person with a disability, it is important to **submit your medical report during the selection process.** *Check which data must be included in the report* *by clicking here.* This way, we can guarantee the support and accommodations you deserve. **If you do not yet have an official disability certification, don’t worry—we can support you in obtaining it.** We have a dedicated Health & Wellness team, inclusion specialists, and affinity groups ready to support you at every stage. Count on us to walk this journey alongside you.