We are looking for a Full Stack Developer with strong experience in modern web technologies, capable of building scalable, reliable, and high-performance applications. This role will be key in designing, developing, and maintaining solutions that directly impact our customers and business growth.Responsibilities- Design, develop, and maintain web applications using React.js, TypeScript, Node.js, and Express.js.- Build and optimize RESTful APIs and integrations with internal and external services.- Work with PostgreSQL databases, designing efficient queries and ensuring data integrity.- Collaborate closely with Product, UX/UI, and QA teams to deliver high-quality features.- Ensure code quality through reviews, automated testing (Jest, Cypress, Playwright), and best practices.- Contribute to improving application performance, scalability, and reliability.- Participate actively in Agile ceremonies (daily standups, sprint planning, retrospectives).Requirements- 5+ years of professional experience in software development.- Solid knowledge of JavaScript/TypeScript.- Experience with React.js and modern front-end development (hooks, state management, UI libraries such as Tailwind or Material UI).- Strong background in Node.js with Express.js for backend development.- Hands-on experience with PostgreSQL or other relational databases.- Familiarity with REST APIs and good practices for design and security.- Experience with Git, CI/CD pipelines, and Agile methodologies.- Strong problem-solving, teamwork, and communication skills.Nice to have- Experience with testing frameworks (Jest, Cypress, Playwright).- Familiarity with AWS (Lambda, API Gateway, S3, CloudWatch).- Previous experience in fintech or building digital financial products.What we offer- Opportunity to contribute to innovative products that directly impact users and the company’s growth.- A dynamic and collaborative environment, working with a multidisciplinary team.- Professional growth in a rapidly expanding fintech.- Work mode: 100% remote – Colombia or Argentina.