DuoLingo is a language-learning platform and mobile application that offers courses in various languages through interactive exercises. It uses gamification to engage users in learning vocabulary, grammar, and pronunciation, providing a structured yet flexible approach to language acquisition.
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About DuoLingo
DuoLingo was launched in 2011 by Luis von Ahn and Severin Hacker. It was created to make language learning accessible and engaging through a free, interactive platform. The founders aimed to provide an effective way for people worldwide to learn new languages without the financial barriers associated with traditional language courses.
DuoLingo's strengths include its user-friendly interface, gamified learning experience, and accessibility as a free app. Weaknesses involve limited depth in advanced language skills and reliance on repetitive exercises. Competitors include Rosetta Stone, Babbel, and Busuu, which offer alternative language learning methods and content.
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How to hire a DuoLingo expert
A DuoLingo expert should have skills in language pedagogy, data analysis, and software proficiency. They should understand language acquisition principles, be able to analyze user data to improve learning outcomes, and possess knowledge of app development or user experience design to optimize the platform's functionality.

Rodrigo D.
Skills
Possesses extensive experience in infrastructure, networking, and database management, with proficiency in Docker and Kubernetes. Demonstrates expertise in various development technologies, including but not limited to React, Ionic, React Native, and Vue.js, as well as Spring Framework, Spring Boot, Flyway, Openshift, and Elastic Search. Additionally, maintains comprehensive knowledge of version control systems such as Git and SVN. Exhibits strong analytical capabilities and possesses substantial experience coordinating teams while adhering to agile methodologies like Scrum, Extreme Programming (XP), and Kanban.

Thiago B.
Skills
Java Developer
Possesses expertise in Java Enterprise Edition, covering technologies such as JPA/Hibernate, JSF, and the Spring Framework including Spring Boot. Demonstrates proficiency in Content Management Systems, with experience in Joomla, WordPress, and Liferay. Well-versed in JavaScript frameworks and libraries including jQuery, Alloy UI, AngularJS, and Angular 4. Competent in front-end development using HTML and CSS. Skilled in managing various Database Management Systems such as MySQL, SQL Server, PostgreSQL, Oracle, and DB2.

Bruno F.
Skills
An Electro-Electronics Technician, graduated from ETEC Pirituba in 2015, with extensive experience in industrial automation and PLC programming foundations. Further academic qualifications were obtained at FATEC São Paulo, where specialization in Analysis and Development of Systems provided robust knowledge in algorithms, logic, and web programming. Compulsory internships during 2018-2019 facilitated practical experience as a Full-Stack Developer, focusing on JavaScript, HTML, CSS, and the Dart 2 framework, along with user support duties. In 2020, participated in the Imersão Web com Ruby on Rails bootcamp, which led to a professional shift towards backend development. Currently employed as an Intermediate Backend Developer with expertise in Ruby on Rails and proficiency in various programming languages, demonstrating a flexible approach to exploring diverse technological stacks.

Gustavo D.
Skills
A novice software developer actively pursuing opportunities for professional growth and career advancement.

Gelson E.
Skills
A seasoned Senior System Analyst with over 13 years of experience specializing in system and project management within the financial sector, covering areas such as billing, CRM, prepaid platforms, mediation, interconnection, accounting, and tax. Expertise includes coordinating and conducting workshops, training teams, and managing user relationships effectively. Proven ability to oversee outsourced teams, ensuring adherence to deadlines and prioritization of demands through meticulous project scheduling. Possesses a comprehensive understanding of technical, functional, commercial, and administrative aspects in financial, accounting, and tax domains. Proficient in programming languages such as Mantis, COBOL, CICS, JCL, TDS, and VASAM.

Rafael D.
Skills
Software Developer with over eight years of experience, demonstrating expertise in programming, Object-Oriented Programming (OOP), C#, Dot.Net MVC, .Net Core, API.Rest, and SQL Server. Proficient in JavaScript, Angular, Flutter, JQuery, React, DevOps, and Mongo DB. Committed to continuous learning and professional growth through engagement with emerging technologies. Actively pursuing remote work opportunities and open to salary negotiations.

Brenno M.
Skills
Web Developer with four years of experience in the field, specializing in Typescript, PHP, and currently focusing on C#. Possesses a robust understanding of Object-Oriented Programming, along with expertise in best practices, SOLID principles, clean architecture, and automated testing. Holds a Bachelor's degree in Information Systems from the University of Pernambuco, awarded in 2019.

Elizeu S.
Skills
Full stack developer based in Araruama, Rio de Janeiro, with a robust background in programming since 2008. Initially focusing on web design, the professional skillset evolved through formal education into a comprehensive mastery of full stack development. Specialization includes the creation of systems and websites for a diverse clientele within Brazil. Known for addressing complex challenges and delivering high-impact projects, leveraging a deep understanding of both fundamental and cutting-edge technologies.
Expertise encompasses a range of technologies and frameworks, including HTML, CSS, JavaScript, PHP, MySQL, PostgreSQL, Yii2, CodeIgniter, Laravel, Angular, Ionic, and Node.js. Dedicated to continuous learning and staying abreast of the latest industry trends to provide innovative and high-quality solutions that meet client expectations.
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