.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 practicesCoaching other team members and new hiresIntegrating user-facing elements developed by front-end developers with server-side logicWriting reusable, testable, and efficient codeDesigning and implementing low-latency, high-availability, and performant applicationsWorking with micro frontendsImplementing security and data protectionWorking with UX and design professionals in the generation of new products and functionalitiesWorking with top front-end technologies such as nextJS and reactWhat skills do I need?Good level of written and spoken English4+ years of software development experience with Javascript applicationsTo have ownership, being proactive and curious to work independentlyStrong knowledge of ReactExperience with Next.JsExperience with testing librariesKnowledge of Gitflow, GitHub flow, and code versioning common issues with merging conflicts and how to solve themUnderstandings ofStatic, server-side side, and client-side rendering and their differencesConcepts behind pure functions, immutability, and flux patternNature of asynchronous programming and its quirks and workaroundsFundamental design principles behind a scalable applicationIs a plusExperience with Git UI tools, such as SourceTree, SmartGit, or any otherKnowledge of React 18 and concurrent featuresKnowledge of React testing libraryKnowledge of TypescriptKnowledge of Node