.Why should you join dLocal? dLocal enables the biggest companies in the world to collect payments in 40 countries in emerging markets. Global brands rely on us to increase conversion rates and simplify payment expansion effortlessly. As both a payments processor and a merchant of record where we operate, we make it possible for our merchants to make inroads into the world's fastest-growing, emerging markets. By joining us you will be a part of an amazing global team that makes it all happen, in a flexible, remote-first dynamic culture with travel, health, and learning benefits, among others. Being a part of dLocal means working with 900+ teammates from 25+ different nationalities and developing an international career that impacts millions of people's daily lives. We are builders, we never run from a challenge, we are customer-centric, and if this sounds like you, we know you will thrive in our team. What's the opportunity? We are looking for a Senior Front End Developer who would like to build high-performing, scalable, enterprise-grade applications and is interested in becoming a technical referent of a front-end team. You will be part of a talented software team that works on mission-critical applications with big customers like Netflix, Amazon, Nike, Facebook & more. What will I be doing? Focusing on product quality and best practices Coaching other team members and new hires Integrating user-facing elements developed by front-end developers with server-side logic Writing reusable, testable, and efficient code Designing and implementing low-latency, high-availability, and performant applications Working with micro frontends Implementing security and data protection Working with UX and design professionals in the generation of new products and functionalities Working with top front-end technologies such as nextJS and react What skills do I need? Good level of written and spoken English 4+ years of software development experience with Javascript applications To have ownership, being proactive and curious to work independently Strong knowledge of React Experience with Next.Js Experience with testing libraries Knowledge of Gitflow, GitHub flow, and code versioning common issues with merging conflicts and how to solve them Understandings of Static, server-side side, and client-side rendering and their differences Concepts behind pure functions, immutability, and flux pattern Nature of asynchronous programming and its quirks and workarounds Fundamental design principles behind a scalable application Is a plus Experience with Git UI tools, such as SourceTree, SmartGit, or any other Knowledge of React 18 and concurrent features Knowledge of React testing library Knowledge of Typescript Knowledge of Node