Senior Fullstack Developer
Role Overview
As a Senior Fullstack Developer, you will design, develop, and maintain web applications using React.js, TypeScript, Node.js, and Express.js, while building and optimizing RESTful APIs and PostgreSQL databases. You will collaborate with Product, UX/UI, and QA teams in an Agile environment to deliver high-quality features that directly impact customers and business growth. This role involves ensuring code quality through reviews and automated testing, and contributing to application performance and scalability.
Perks & Benefits
This role offers 100% remote work based in Colombia or Argentina, with a dynamic and collaborative environment working in a multidisciplinary team. You will have opportunities for professional growth in a rapidly expanding fintech company, contributing to innovative products that impact users and company success. While time zone expectations are not specified, typical remote roles may involve flexibility with some overlap for team collaboration.
Full Job Description
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.
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