Senior Fullstack (Node/React) Developer

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Fullstack (Node/React) Developer in Brazil.

This role is an opportunity to join a high-performing engineering environment focused on building scalable, cloud-native web applications using modern JavaScript ecosystems. You will work across both frontend and backend layers, contributing to the design and delivery of robust, high-traffic systems. The position emphasizes strong engineering practices, including testing, performance optimization, and clean architecture. You will collaborate closely with cross-functional teams in an agile setup, helping shape technical decisions and product features. The role also involves working with microservices-based architectures and cloud platforms, particularly Google Cloud. Exposure to AI-driven solutions is considered a strong plus. Candidates based in the Campinas Metropolitan Region should be aware that periodic on-site presence is required.

• Develop and maintain scalable web applications using JavaScript, React, and Node.js, ensuring performance, reliability, and maintainability.
• Design and implement RESTful and/or GraphQL APIs, focusing on scalability, security, and efficiency.
• Collaborate with product, design, and engineering teams to define and deliver new features in an agile environment.
• Architect and support microservices-based systems, ensuring smooth integration and communication between services.
• Apply performance optimization techniques such as caching strategies, monitoring, and query tuning.
• Implement and promote automated testing practices (TDD/BDD) and maintain high code quality through reviews and standards.
• Work with Docker, messaging systems (Kafka, RabbitMQ), and cloud environments (preferably GCP) to build scalable infrastructure.

Requirements:

• Strong experience as a Fullstack or Backend Developer with Node.js, combined with solid expertise in React.
• Deep understanding of microservices architecture, API design (REST/GraphQL), and distributed systems.
• Hands-on experience with cloud platforms (GCP, AWS, or Azure), preferably GCP.
• Strong knowledge of databases (SQL and NoSQL such as MongoDB, Redis) and query optimization techniques.
• Experience applying performance tuning, caching strategies, and system scalability practices.
• Familiarity with CI/CD pipelines, Git, and Agile methodologies.
• Knowledge of state management (Redux or similar) and reactive programming concepts (RxJS, Observables).
• Ability to design maintainable systems and solve complex technical problems independently.
• Strong communication skills with the ability to explain technical concepts clearly.
• Nice to have: experience with NestJS, Next.js, Tailwind CSS, Design Systems, and AI-related development.

Benefits:

• Health and dental insurance coverage
• Meal and food allowance
• Childcare assistance
• Extended parental leave policies
• Partnerships with wellness and fitness platforms (Wellhub / TotalPass)
• Profit sharing program (PLR)
• Life insurance coverage
• Continuous learning platform and training resources
• Discounts and partner benefits club
• Online wellness platform supporting physical and mental health
• Parenting and pregnancy support programs
• Language learning platform access
• Additional learning and development opportunities.