Senior Front-End Engineer (React & React Native)

About the team: The Developer Experience team is responsible for the publicly available Developer Documentation, SDKs & Libraries, APIs, and other developer tools and processes. Our focus is to offer the best experience for developers and make Trustly the payment option developers prefer and recommend. What you'll do: * Create and maintain features in Web including integration scripts applications and be able to develop unit tests for the same features. * Responsible for investigating problems in applications in collaboration with support teams, backend teams and merchant teams. * Actively troubleshoot and debug production issues directly with customers/merchants and their development teams, including participation in technical calls. * Propose and do refactors. * Estimate efforts for tasks with a high level of accuracy. * Analyze large volumes of data to find possible problems and propose performance improvements. * Identify performance issues and propose solutions. * Participate in technical meetings and propose solutions to problems. * Create alarms in metrics systems used by the company. * Indicate new tools and technologies. * Support new developers on company and train them on the development process, patterns and features * Participate in functional meetings with non-engineering teams with knowledge about all front end features and with skills to propose solutions * Document features in the available tool * Create integrated tests in the tool provided * In refinement meetings, analyze all proposals and be able to define the best solution * Be able to participate in war rooms and create an action plan Who you are: * Experience developing/designing software systems; * Understanding of layout aesthetics, and a drive to create thoughtful UX experiences and pixel-perfect web pages; * Excellent coding skills in Javascript (ES6), HTML and CSS; * Expert in React Framework. * Experience developing with React Native Framework. * Strong ability to interface with and contribute to native modules on iOS and Android. * Ability to implement features in backend services (Java/[Node.js](http://Node.js)) and possess strong knowledge of database systems. * Excellent coding skill and understanding of OO concepts; * Previous experience with source control; * Plus: Ability to communicate with teams outside your country with a high level of proficiency in English. Our perks and benefits: * Bradesco health and dental plan, for you and your dependents, with no co-payment cost; * Life insurance with differentiated coverage; * Meal voucher and supermarket voucher; * Home Office Allowance; * Wellhub - Platform that gives access to spaces for physical activities and online classes; * Trustly Club - Discount at educational institutions and partner stores; * English Program - Online group classes with a private teacher; * Extended maternity and paternity leave; * Birthday Off; * Flexible hours/Home Office - our culture is remote-first! You can work in every city in Brazil; * Welcome Kit - We work with Apple equipment (Macbook Pro, iPhone) and we send many more treats! Spoiler alert: Equipment can be purchased by you according to internal criteria!; * Referral Program - If you refer a candidate and we hire the person, you will receive a reward for that! #LIRemote