Job Summary: We are seeking a Fullstack Developer with strong expertise in Node.js and React.js to participate in the full development lifecycle and contribute to the evolution of a modern architecture. Key Highlights: 1. Technical autonomy and an innovative environment 2. Data-driven culture and real social impact 3. Accelerated development and direct impact on the product **Fullstack Software Engineer (Node.js \| React.js) \| PJ** **Work Model:** On-site or Hybrid **Salary Range:** R$ 10\.000 to R$ 15\.000 (based on seniority) **Eyecare Health** is a rapidly growing healthtech building scalable digital products to transform eye care across Brazil. We are expanding our technology team to support new architectural, performance, and scalability challenges. We seek a Fullstack Developer with strong expertise in Node.js and React.js who wants to engage in the full development lifecycle and directly contribute to evolving a modern architecture based on microservices, microfrontends, and AWS serverless technologies. If you value technical autonomy, an innovative environment, a data-driven culture, and real social impact, this opportunity is for you. **Position Mission** Develop and evolve scalable, secure, and high-performance web solutions—from frontend to backend—contributing to the evolution of our architecture based on microservices, microfrontends, and infrastructure-as-code, always prioritizing user experience and technical excellence. **️ Tech Stack & Technologies** Frontend: React.js (Hooks, Context API, best practices), Microfrontends (Module Federation / Single\-SPA) Backend: Node.js, TypeScript, RESTful APIs and/or GraphQL Cloud: AWS (Lambda, API Gateway, S3, CloudWatch) Infrastructure: Terraform (Infrastructure as Code) Database: MongoDB (NoSQL) DevOps: CI/CD (GitHub Actions, GitLab CI, Jenkins), Docker Testing: Jest, React Testing Library, Cypress Monitoring: DataDog, New Relic, CloudWatch Methodology: Agile / Scrum **Key Responsibilities** Develop frontend applications using React.js and microfrontend architecture Build and evolve serverless microservices with Node.js \+ TypeScript (AWS Lambda) Design, implement, and document RESTful and/or GraphQL APIs Manage infrastructure-as-code using Terraform Model and optimize MongoDB queries Write automated tests (unit, integration, and end-to-end) Participate in code reviews and continuously improve code quality Monitor production applications and resolve incidents Collaborate with Product and Design teams on technical definitions for new features Actively participate in Agile rituals and sprint planning Use AI tools daily to support development, testing, documentation, and productivity gains Requirements: **What We’re Looking For** **Mandatory Requirements** +3 years of experience with JavaScript / TypeScript Proficiency in React.js Solid experience with Node.js on the backend Experience developing RESTful APIs Experience with Git and Agile methodologies Familiarity with AI tools applied to software development Genuine interest in emerging technologies and continuous learning **✨ Nice-to-Have** Experience with microservice architecture Experience in high-availability and highly scalable environments AWS experience Knowledge of Terraform or other Infrastructure-as-Code tools Experience with Docker and containers Experience with CI/CD pipelines Strong culture of automated testing **Why Join Eyecare?** Strategic involvement in a fast-growing startup/healthtech High level of technical autonomy Data-driven culture and metric-oriented decision making Encouragement to adopt AI and emerging technologies Accelerated professional growth and direct impact on the product ️ Real social impact on eye health for thousands of people Here, you won’t be just another developer—you’ll have space to propose ideas, build solutions, evolve architecture, and see your code generate tangible impact. Benefits **Benefits** Flexible Swile benefit R$1\.350,00 (100% On-site) R$876,80 (Hybrid Model – 3 days on-site \| 2 days remote) ️ Vision Benefit – because caring for your vision is our mission MediPreço – exclusive discounts on medications TotalPass – wellness and gyms 24-hour Telemedicine with digital prescriptions Personal Assistance Program (PAP) Partnership with Open English Paid vacation leave Birthday day-off Collaborative, challenging, and innovative environment