Fullstack Developer (Node.js / React.js)

Description

Job Summary: We are looking for a Fullstack Developer proficient in Node.js and React.js to participate in the full development lifecycle and evolve modern architectures within a healthtech. Key Highlights: 1. Work at a growing startup/healthtech with technical autonomy 2. Data-driven culture and encouragement to use AI and emerging technologies 3. Real social impact on the ocular health of thousands of people **Fullstack Software Engineer (Node.js \| React.js) \| PJ** **Work Model:** On-site or Hybrid **Salary Range:** BRL 10,000 to BRL 15,000 (based on seniority) **Eyecare Health** is a rapidly growing healthtech that develops scalable digital products to transform ocular healthcare in 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 built on microservices, microfrontends, and AWS serverless infrastructure. If you value technical autonomy, an innovative environment, a data-driven culture, and real social impact, this opportunity is for you. **Role Mission** Develop and enhance scalable, secure, and high-performance web solutions, working across frontend and 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 specifications for new features Actively participate in Agile ceremonies 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 backend experience with Node.js Experience developing RESTful APIs Hands-on 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 role in a growing startup/healthtech High level of technical autonomy Data-driven culture and metrics-based decision making Encouragement to adopt AI and emerging technologies Accelerated professional growth and direct product impact ️ Real social impact on the ocular health of 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 drive tangible impact. Benefits **Benefits** Flexible Swile benefit BRL 1,350.00 (100% On-site) BRL 876.80 (Hybrid Model – 3 days on-site \| 2 days remote) ️ Vision Benefit – because caring for your visual health is our mission MediPreço – exclusive discounts on medications TotalPass – wellness and gyms 24/7 Telemedicine with digital prescriptions Personal Assistance Program (PAP) Partnership with Open English Paid vacation leave Birthday day-off Collaborative, challenging, and innovative environment