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Summary: Join belo as a Semi-Senior Fullstack Developer to build internal tools and automation for the Finance team, developing end-to-end features and integrating various systems. Highlights: 1. Opportunity to shape Finance operations at a fast-growing fintech platform 2. Hybrid role combining business proximity with technical excellence 3. Join a passionate team focused on innovation, transparency, and impact At belo we are looking for a **Semi\-Senior Fullstack Developer** to join our **Finance team**. We create simple financial products so that people can focus on what really matters to them. Our company is built by industry experts and passionate entrepreneurs who are convinced that, in order to create and preserve value for both current and future generations, it is crucial that everyone around the world has access to the best and simplest financial services. Our core services are built using Node.js, TypeScript, React, PostgreSQL, and MongoDB on top of AWS. We need resourceful engineers to help our Finance team scale through better internal tooling and automation. If you like new challenges and you're looking to get into a new and thriving industry, this is a great chance to join a top\-tier team of passionate people. ### **What You'll Do** * Write clean, well\-documented, and maintainable code in TypeScript across both backend and frontend, participating in code reviews and following testing practices to ensure reliability * Build internal tools, dashboards, and automations that solve real problems for the Finance team, from reconciliation flows to reporting interfaces and operational workflows * Develop fullstack features end\-to\-end: APIs in Node.js/TypeScript on the backend and React\-based UIs on the frontend * Work with PostgreSQL and MongoDB to model, query, and optimize data for financial use cases * Integrate with internal systems and third\-party APIs (payment processors, accounting tools, banking partners, analytics) ensuring secure and reliable connections * Follow the architecture, security, and deployment guidelines defined by the Technology team so that everything you build can be deployed to production with confidence * Collaborate closely with Finance stakeholders to understand requirements, and with Technology to align on standards, CI/CD, and scalability * Contribute to a healthy engineering culture within Finance: bringing dev best practices, raising the bar on internal tooling quality, and being the technical voice in the team ### **What We're Looking For** #### **Must have:** * 3\+ years of professional development experience * TypeScript (backend and frontend) * React * Node.js * Git * PostgreSQL * RESTful APIs * Testing experience (Jest or similar) * English proficiency * Ability to work autonomously and communicate effectively with non\-technical stakeholders #### **Nice to have:** * MongoDB * NestJS * Docker * AWS * Shell scripting * Experience with finance, accounting, or fintech domains * Experience with crypto * Familiarity with CI/CD pipelines and production deployment practices * Portuguese proficiency ### **What We Offer** * The opportunity to shape how Finance operates at a fast\-growing fintech platform through software * A hybrid role that combines business proximity (Finance) with technical excellence (Tech standards) * A passionate team focused on innovation, transparency, and impact * Competitive compensation in USDT * Six weeks of vacation * Flexible hours * A MacBook and an annual budget to invest in your professional development * Mostly remote, with at least one day a week at our Buenos Aires office * A vibrant startup culture with flexibility, autonomy, and a results\-oriented approach At **belo**, we're redefining financial services for LatAm and beyond. Join us to protect the tools people need to thrive in the modern economy.
