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Backend Challenges

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Want to test your knowledge using real jobs challenges? Here is a public list of open-source challenges from jobs around the world.

Feel free to contribute! Only open-source challenges please!

Company Stack Test
🇬🇮 Addison Global - 1 Java or Scala, Any Framework & REST API Code →
🇬🇮 Addison Global - 2 Java 8+, Akka HTTP or Spring Boot & REST API Code →
🇰🇪 Africa's Talking - 1 Scala, Regex Code →
🇰🇪 Africa's Talking - 2 ASP.NET MVC, REST API, SQL Server Code →
🇭🇰 AfterShip Node.js, PHP, Java or Ruby Code →
🇨🇦 AlayaCare - 1 Python, Flask, SQLite Code →
🇨🇦 AlayaCare - 2 PHP, Silex, MySQL Code →
🇫🇷 AirCall Ruby & Rails Code →
🇺🇸 Ambulnz (Node.js or Ruby) & Any Framework Code →
🇧🇷 AmeDigital Kotlin, Scala, Java Code →
🇧🇷 Anota AI Node.js, Express, Mongo DB Code →
🇬🇧 Apolitical Node.js, Express, Docker Code →
🇧🇷 BCredi Java or Ruby Code →
🇧🇷 B2W Java or Elixir Code →
🇧🇷 Bossabox Any Language & Any Framework & Web API Code →
🇧🇷 Brainn Elixir Code →
🇧🇷 ClickBus Java, Spring Boot, REST API Code →
🇧🇷 CodeRockr Any Language & Any Framework Code →
🇭🇺 CodingSans Node.js, Typescript & Koa, Express or Fastify Code →
🇧🇷 Creditas Ruby, Python or Kotlin Code →
🇧🇷 Cubo Network Any Language & Any Framework Code →
🇧🇷 DevPartner C-Sharp, Entity Framework, Asp.net & Web API Code →
🇧🇷 DinDigital PHP, Laravel, Docker Code →
🇧🇷 DogHero Ruby, API Code →
🇺🇸 Eaze - 1 Node.js or .NET Core Code →
🇺🇸 Eaze - 2 .NET, Quartz & Tests Code →
🇧🇷 Entria Node.js, Koa.js, REST API and GraphQL Code →
🇧🇷 Estante Virtual Ruby, REST API Code →
🇧🇷 FCamara - 1 Java, Rest API Code →
🇧🇷 FCamara - 2 Node.js, React, Rest API Code →
🇧🇷 FCamara - 3 .NET, Entity Framework, Rest API Code →
🇧🇷 Foton Tech Node.js, GraphQL, MongoDB, Typescript Code →
🇧🇷 GetNinjas - 1 Any Language & Docker Code →
🇧🇷 GetNinjas - 2 Ruby, Rails & Any Database Code →
🇩🇪 Gigs Go or Ruby Code →
🇧🇷 Goomer Node.js, REST API, MySQL or Postgres Code →
🇧🇷 HurbCom Any Language & Any Framework Code →
🇧🇷 iCasei Ruby, Rails & JavaScript Code →
🇺🇾 Ingenious Ruby, .Net, Node.js or Python Code →
🇧🇷 Kinvo - 1 C#, REST API Code →
🇧🇷 Kinvo - 2 Typescript, Node.js, REST API or GraphQL Code →
🇧🇷 Olist Python or Go Code →
🇧🇷 Oli Saúde Any Language & Any Framework Code →
🇺🇸 Ontraport Any Language Code →
🇧🇷 Orbital PHP Code →
🇲🇽 ORCA Grc Java, Hibernate Code →
🇺🇸 Origin Financial Any Language Code →
🇧🇷 PagarMe Node.js, REST API Code →
🇨🇦 Paytm Labs - 1 (Machine Learning) Java or Scala & Hadoop or Spark Code →
🇨🇦 Paytm Labs - 2 Any Language Code →
🇧🇷 Perfect Pay PHP, Laravel Code →
🇧🇷 Petlove Ruby, Rails & Any Database Code →
🇬🇧 PhotoBox .NET Code →
🇧🇷 PicPay Java (Spring Boot), PHP (Lumen) & (MySQL or MongoDB) Code →
🇧🇷 RedFoxTech Node.js, REST API & Any Database Code →
🇧🇷 Riderize Node.js & GraphQL Code →
🇳🇬 Rise Vest Node.js (TypeScript & Express) or Go, Postgres, Redis, Docker & S3/Cloud Storage Provider Code →
🇬🇧 SamKnows PHP Code →
🇳🇴 Schibsted Java or Kotlin Code →
🇧🇷 Senior Sistemas Any Language, Any Database, REST API Code →
🇧🇷 Somar Metereologia Python, REST API & AWS or Flask Code →
🇺🇸 StackPath Go Code →
🇧🇷 Stone Payments Elixir Code →
🇳🇱 Travix Any Language Code →
🇺🇸 Uber Any Language Code →
🇧🇷 UOL Host Java & Any Framework Code →
🇸🇪 Volvo Cars Any Language Code →
🇧🇷 Wirecard Brasil Any Language, REST API Code →
🇨🇳 Wiredcraft Node.js, Any Framework, Any Database, REST API Code →
🇧🇷 Zé Delivery Any Language, REST API or GraphQL Code →

Inspiration

Inspired on Felipe Fialho's frontend-challenges. Kudos!

License

MIT © CollabCode