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 → |
| 🇭🇰 | AfterShip | Any Language | Code → |
| 🇭🇰 | AfterShip | Node.js | Code → |
| 🇨🇦 | AlayaCare - 1 | Python, Flask, SQLite | Code → |
| 🇨🇦 | AlayaCare - 2 | PHP, Silex, MySQL | Code → |
| 🇫🇷 | AirCall | Ruby & Rails | Code → |
| 🇫🇷 | AirCall | Any Language/Framework | Code → |
| 🇫🇷 | AirCall | Any Language/Framework | 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 - 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 → |
| 🇳🇬 | Risevest | Node.js, Express, Postgres | Code → |
| 🇳🇬 | Risevest | Node.js (TypeScript & Express) or Go, Postgres, Redis, Docker | Code → |
| 🇳🇬 | Risevest | Node.js, TypeScript, Express, Postgres | 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 → |
| 🇳🇬 | Worksquare | Node.js(Express)/Laravel(PHP)/Django or Flask(Python) | Code → |
| 🇹🇷 | Teknasyon | Golang/Node.js/PHP, Kafka, Docker, Git | Code → |
| 🇧🇷 | Anota AI | Node.js, Express.js, AWS S3, AWS SQS, MongoDB | Code → |
| 🇬🇧 | Reach Industries | Golang, Docker, Kafka | Code → |
| 🇪🇬 | Bosta | Any Language, Docker | Code → |
| 🇬🇧 | Moonpig | Node.js | Code → |
| 🇬🇧 | Moonpig | .NET | Code → |
| 🇺🇸 | Form3 | Golang | Code → |
| 🇺🇸 | Form3 | Golang | Code → |
| :ch: | Fastwork | Golang | Code → |
| 🇵🇹 | Unbabel | Python or Golang | Code → |
| 🇨🇦 | RareCircles | Golang | Code → |
| 🇬🇧 | Cuvva | Golang | Code → |
| 🇸🇬 | GuardRails | Any Language | Code → |
| 🇸🇬 | GuardRails | Node.js | Code → |
| 🇧🇷 | HVAR | Python, FastAPI | Code → |
| 🇧🇷 | HVAR | Any Language | Code → |
| 🇸🇬 | SPH Media | Golang, Docker, SQL/NoSQL | Code → |
| 🇨🇭 | Nanocorp | Node.js, Express, MongoDB, Docker | Code → |
| 🇺🇸 | Ingram | Golang, Docker | Code → |
| 🇩🇰 | Unity Technologies | Golang | Code → |
| 🇨🇦 | Perkuto | Any Language/Framework, MySQL/PostgreSQL, REST, JSON | Code → |
| 🇫🇷 | Tailwarden | Golang, AWS Lambda | Code → |
| 🇺🇸 | Vizion | Typescript, Node.js, Postgres | Code → |
| 🇺🇸 | Pana | Javascript, Node.js | Code → |
| 🇺🇸 | Pana | SQL/NoSQL | Code → |
| 🇬🇧 | Datapane | Python | Code → |
| :gr: | Magicul | Typescript, Node.js | Code → |
| 🇺🇸 | Lana | Golang | Code → |
| 🇬🇧 | BuffUp | Golang, gRPC, Postgres | Code → |
| 🇬🇧 | BuffUp | Golang, gRPC, DynamoDB | Code → |
| 🇮🇳 | Mindship | Golang/Node/Python/Ruby | Code → |
| 🇬🇧 | LifeWorks | PHP/Node/Python | Code → |
| 🇧🇷 | HurbCom | Javascript/Golang/PHP/Node/Python | Code → |
| 🇦🇹 | Fiskaly | Golang | Code → |
| 🇦🇹 | Fiskaly | Node.js | Code → |
| 🇬🇧 | BBC | Java/C++/Python/ | Code → |
| 🇺🇾 | Crunchloop | Any Language/Framework | Code → |
| 🇭🇰 | Lalamove | Golang/Java/Node.js/PHP | Code → |
Inspired on Felipe Fialho's frontend-challenges. Kudos!
MIT © CollabCode