**Do you consider yourself a person who is eager to learn, enjoys working in a team, and likes sharing knowledge? Then this opportunity is for you!** We are looking for a Senior Frontend React Developer to work with a global e-commerce client. Present in 45 countries, publishing online classified ads. **Responsibilities and Duties** **In your day-to-day work, you will carry out the following activities:** Develop end-to-end solutions; Collaborate with other engineering teams to build and maintain products, with a focus on our customers; Pursue software excellence by combining your technical knowledge and experience with a proactive attitude; Work autonomously, taking responsibility for delivering software capable of handling massive request volumes, ensuring high availability and generating business impact. **Requirements and Qualifications** **Check below what you’ll need to know to succeed in this opportunity!** **REQUIRED KNOWLEDGE** * React; * Node.js; * TypeScript; * SQL; * REST and SOAP APIs; * WebHooks; * State Management (React Query / TanStack, Redux Toolkit or equivalent); * Next.js (Performance, SEO, caching, SSR/ISR, advanced routing); * Jest + Testing Library (Jest + Testing Library / Cypress/Playwright); * Build/Tooling (Vite/Webpack, pnpm/yarn, monorepo). **DESIRABLE KNOWLEDGE** * MongoDB; * Agile Methodologies; * Open Source Projects; * SOLID. **Additional Information** **Deliver IT will leave its mark on this project and invites you to be part of this construction!** We have a light, relaxed, collaborative, and diverse culture, as well as an enriching environment with many talented colleagues across various fields and plenty of challenges. Here, you’ll find innovative projects, strong connections, and abundant knowledge exchange! We were ranked by GPTW as the 5th Best Company to Work for in Rio Grande do Sul (RS). All our positions follow the CLT employment model, with a 44-hour weekly workload. **OUR BENEFITS** * Work Mode: 100% Remote; * Meal Allowance (VA) and/or Food Allowance (VR); * Well-being Program: psychological support, legal assistance, social support, financial support; * Health Insurance Plan and Dental Insurance Plan; * Life Insurance; * Wellhub (Gympass); * Discounts on courses offered by Assespro-RS and Seprorgs-RS; * Company Anniversary Bonus; * Referral Bonus. The technology universe is vast—just like our career opportunities and the reasons why you should join Deliver IT. Discover and build your future with us. **VALUES WE DELIVER TO YOU** **IT IS TECH** Here, we use technology to strengthen relationships between people and businesses. **IT IS COLLABORATION** Our collaborative spirit fosters a productive, relaxed, transparent, and human-centered environment. **IT IS RESPONSIBILITY** We understand that freedom and autonomy to create innovative solutions require responsibility. **IT IS OPPORTUNITIES** We are valued for our capabilities and receive the necessary encouragement to develop our talents.