Senior Full Stack Developer

Description

Job Summary: We are seeking a proactive and analytically minded Full Stack Developer to develop and maintain web applications, optimize performance, and collaborate with the team. Key Highlights: 1. Develop and maintain full-stack web applications following TDD principles 2. Work with microservices and distributed architecture 3. Collaborate with the team on continuous improvements and code reviews We are looking for a Full Stack Developer to join our development team at a fintech specializing in contract and investment management. This is a 100% on-site position in Itajaí/SC. LOCATION Rua Osvaldo Reis, Nº 3281, Sala 1005 A\-89 * ZIP Code: 88\.306\-773 \- Praia Brava, Itajaí \- Santa Catarina TECHNOLOGY STACK Frontend: * Next.js 13\+ (App Router) * React 18 with TypeScript * Tailwind CSS \+ Radix UI * React Hook Form \+ Zod/Yup * TanStack Query (React Query) * Zustand (state management) * Socket.IO (real\-time) * Cypress (E2E testing) Backend: * NestJS (Node.js framework) * TypeORM and Prisma ORM * PostgreSQL (primary database) * Redis (caching and queues) * BullMQ (job processing) * WebSockets (Socket.IO) * JWT \+ Passport (authentication) * Swagger (API documentation) * Jest (unit and integration testing) Microservices: * Fastify (Node.js microservices) * Python (Flask/FastAPI) DevOps \& Tools: * Docker \& Docker Compose * Git * AWS S3 * GitHub Actions (CI/CD) * Husky \+ Lint\-staged (pre\-commit hooks) * pnpm REQUIRED QUALIFICATIONS * 3\+ years of experience in Full Stack development * Strong experience with TypeScript * Experience with Next.js and React * In-depth knowledge of NestJS or similar frameworks (Express, Fastify) * Experience with PostgreSQL and ORMs (TypeORM or Prisma) * Knowledge of RESTful APIs and best practices * Familiarity with Docker and containerization * Experience with Git and agile methodologies * Experience with automated testing (unit, integration, E2E) * Experience with TDD (Test\-Driven Development) PREFERRED QUALIFICATIONS * Experience with WebSockets and real\-time applications * Knowledge of queues and asynchronous processing (BullMQ, Bull) * Experience with Redis for caching and sessions * Knowledge of Python (Flask/FastAPI) * Experience with Cypress for E2E testing * Experience with Jest and NestJS testing * Experience in fintechs or financial systems * Knowledge of performance optimization and database indexing * Experience with AWS (S3, EC2\) * Knowledge of CI/CD with GitHub Actions * Experience with code review and pair programming RESPONSIBILITIES * Develop and maintain full-stack web applications following TDD principles * Create and consume RESTful APIs * Implement real\-time features using WebSockets * Write unit, integration, and E2E tests * Optimize database performance and queries * Work with microservices and distributed architecture * Participate in code reviews and pair programming * Collaborate with the team on continuous improvements * Ensure quality through automated testing and CI/CD DESIRED PROFILE * Proactive and analytically capable * Strong communication and teamwork skills * Committed to quality and best practices (Clean Code, SOLID) * Ability to solve complex problems * Willingness to learn new technologies * Organized and detail\-oriented * Experience with agile methodologies (Scrum/Kanban) Employment type: Full\-time Compensation: R$3\.039,40 \- R$9\.737,50 per month