This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Fullstack Developer Sênior based in Brazil. This role is an opportunity to build and evolve modern digital solutions while working on scalable, high-impact technology projects. You will contribute across the full software development lifecycle, combining front-end expertise with backend development to deliver robust applications. The position focuses on creating high-quality user experiences, designing scalable architectures, and implementing reliable digital products. You will collaborate closely with engineers, designers, and product teams to define technical solutions and drive continuous improvement. The role offers an innovative environment where technology, autonomy, and engineering excellence are key drivers. You will have the opportunity to work with modern frameworks, cloud technologies, and practices that shape the future of digital experiences. ### Accountabilities: As a Senior Fullstack Developer, you will be responsible for designing, developing, and improving scalable digital applications while contributing to technical decisions and engineering practices. Your main responsibilities will include: - Developing and evolving modern web applications using React, Next.js, and TypeScript with a focus on performance and user experience. - Building responsive, accessible, and reusable front-end components following scalable architecture principles. - Designing and maintaining backend services and APIs using Node.js and frameworks such as NestJS, Fastify, and Express. - Contributing to full-stack application development, from interface implementation to backend integrations and data management. - Designing and implementing integrations with cloud storage services and distributed application environments. - Participating in architecture discussions and making technical decisions related to product evolution. - Ensuring software quality through automated testing, code reviews, documentation, and engineering best practices. - Collaborating with product managers, designers, and engineering teams to define solutions that meet business and user needs. - Improving application performance, security, reliability, and overall user experience. - Supporting continuous improvement initiatives related to development processes, infrastructure, and technology adoption. ## Requirements: We are looking for an experienced software engineer with strong full-stack development skills and the ability to contribute to technical decisions in complex environments. The ideal candidate should have: - Strong experience in front-end development with TypeScript, JavaScript (ES6+), React, and Next.js. - Experience building scalable web applications, SPAs, reusable components, and design systems. - Knowledge of state management, API consumption, responsive design, and cross-browser compatibility. - Strong backend development experience using Node.js and frameworks such as NestJS, Fastify, or Express. - Experience designing and maintaining REST APIs and working with distributed application architectures. - Experience with databases and caching technologies such as MongoDB and Redis. - Knowledge of cloud storage solutions including Azure Blob Storage, AWS S3, and/or Google Cloud Storage. - Experience with application configuration, YAML files, and development pipelines. - Understanding of software quality practices, testing strategies, code review processes, and engineering standards. - Ability to collaborate effectively with multidisciplinary teams and communicate technical concepts clearly. - Strong problem-solving skills, autonomy, adaptability, and ownership mindset. Nice-to-have skills: - Experience with Server-Side Rendering (SSR). - Experience developing high-scale applications. - Knowledge of observability, monitoring, and performance optimization. - Experience with event-driven architectures and microservices. - Familiarity with CI/CD practices and cloud environments. - Knowledge of web performance optimization, including Core Web Vitals. - Experience working with microfrontend architectures. ## Benefits: - Meal allowance. - Food allowance. - Home office assistance. - Medical insurance. - Dental insurance. - Life insurance. - Discounts through partner companies and educational institutions. - Continuous training and development opportunities. - Access to internal learning platforms and technical communities. - Agile training and knowledge-sharing initiatives. - Birthday day off. - Wellbeing initiatives and health partnerships. - Opportunity to work in an innovative digital transformation environment. - Collaborative culture focused on autonomy, technology, and continuous learning. How Jobgether works: We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team. We appreciate your interest and wish you the best! [Why Apply Through Jobgether?](https://jobgether.com/how-jobgether-works) Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time. #LI-CL1