At belo we are looking for a Backend Developer Senior to join our 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, PostgreSQL, and MongoDB on top of AWS. We need resourceful engineers to take the platform to the next level. 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.

Responsibilities:

• Write clean, well-documented, and maintainable code in TypeScript, conducting code reviews, refactoring code, and implementing testing frameworks to ensure reliability and efficiency
• Build scalable and secure APIs to facilitate data communication between the front-end and back-end systems
• Design architectures that meet security standards to protect user data, focusing on data encryption, authentication, and authorization
• Design, manage, and optimize database schemas to ensure efficient data storage and retrieval. Handle complex queries and database indexing to maintain performance under heavy load
• Work with various third-party APIs and services for financial functions, like payment processing, identity verification, and analytics, ensuring secure and reliable integrations
• Monitor and optimize server performance for high-volume transactions, using techniques such as caching, load balancing, and microservices architecture.
• Work closely with front-end developers to design efficient data flows and DevOps to streamline deployment, CI/CD, and scalability, ensuring continuous and stable performance of the fintech app

Must have:

• TypeScript
• Git
• PostgreSQL
• MongoDB
• RESTful APIs
• Jest
• English proficiency

Nice to have:

• React
• Docker
• AWS
• Shell scripting
• Experience with crypto
• Portuguese proficiency
• NestJs

What we offer:

• The opportunity to architect and implement cutting-edge infrastructure solutions that power the intersection of cryptocurrency and traditional financial systems.
• A passionate team of experts focused on innovation and impact.
• Competitive compensation tailored to experience and performance.
• Six weeks of vacation.
• Flexible hours.
• MacBook Pro.
• Courses and training opportunities.
• 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.