Automated functional tests

Detailed code review scorecard

Project boilerplate

The goal of this challenge is to build the backend of the interactive presentation system with an in-memory datastore. The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and API tests. They submit their solution by creating a Pull Request. The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the target competence.

Interactive Presentation Backend - Level 1

The goal of this challenge is to build the backend of the interactive presentation system. Some of the tasks include: <ul> <li>Designing a scalable database schema that allows to handle occasional spikes in requests to the system (e.g., imagine 30k people all voting at the same time);</li> <li>Making sure that no data can be lost due to a race condition when voting or fast-forwarding slides;</li> <li>Writing unit tests for the provided code;</li> <li>Organizing code in a readable and maintainable way.</li> </ul> The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and API tests. They submit their solution by creating a Pull Request. The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the target competence.

Interactive Presentation Backend - Level 3

The goal of this challenge is to build the backend of the interactive presentation system. Some of the tasks include: <ul> <li>Building a backend service with a SQL datastore;</li> <li>Integrating with an external HTTP service;</li> <li>Writing unit tests for the provided code;</li> <li>Organizing code in a readable and maintainable way.</li> </ul> The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and API tests. They submit their solution by creating a Pull Request. The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the target competence.

Interactive Presentation Polls & Votes Backend - Level 2

The goal of this challenge is to build the backend of the interactive presentation system. Some of the tasks include: <ul> <li>Building a backend service with a SQL datastore;</li> <li>Writing unit tests for the provided code;</li> <li>Organizing code in a readable and maintainable way.</li> </ul> The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and API tests. They submit their solution by creating a Pull Request. The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the target competence.

Interactive Presentation Polls Backend - Level 2

The goal of this task is to build a backend service that implements the Lookup Service REST API and integrate with the Credit Data REST API to aggregate historical credit data.
 
 The main challenge revolves around making several HTTP calls and aggregating the results.
 
 The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and API tests.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the automated functional tests.

Lookup Service - Level 1

The goal of this task is to build a backend service that implements the Lookup Service REST API and integrate with the Credit Data REST API to aggregate historical credit data.
 
 The main challenge revolves around making several HTTP calls, aggregating, and caching the results.
 
 The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and API tests.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the target competence.

Lookup Service - Level 2

The goal of this task is to build a backend service that implements the Lookup Service REST API and integrates with the Credit Data REST API to aggregate historical credit data. The main challenge revolves around making several HTTP calls, aggregating, caching, and serving the results back depending on the responses of a remote microservice. The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and API tests. They submit their solution by creating a Pull Request. The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the target competence.

Lookup Service - Level 3

The goal of this task is to build a backend service with a SQL database that implements a predefined REST API.
 
 The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and API tests.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the target competence.

Transaction Management Backend - Level 1

The goal of this task is to build a backend service with a SQL database that implements a predefined REST API.
 
 In particular, the candidate is expected to:
 <ul> 
 <li>Demonstrate their approach to unit testing;</li>
 <li>Organize code in a readable and maintainable way.</li>
 <ul/>
 The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and API tests.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the target competence.

Transaction Management Backend - Level 2

The goal of this task is to build a backend service with a SQL database that implements a predefined REST API.
 
 In particular, the candidate is expected to:
 <ul> 
 <li>Ensure that the service does not slow down as the database grows;</li>
 <li>Ensure that no data can be overwritten due to a race condition;</li>
 <li>Demonstrate their approach to unit testing;</li>
 <li>Organize code in a readable and maintainable way.</li>
 <ul/>
 The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and API tests.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the target competence.

Transaction Management Backend - Level 3

The goal of this task is to find answers to a list of questions about the crimes committed in Chicago by working with the <a href="https://console.cloud.google.com/marketplace/product/city-of-chicago-public-data/chicago-crime">Chicago Crime Dataset</a>. The candidate is expected to use SQL to query data and Python to manipulate data frames, perform basic statistics, and provide visualizations. The candidate gets access to a private GitHub repository with the task description and a Jupyter Notebook. They are expected to use <a href="https://cloud.google.com/bigquery">BigQuery</a> to complete the SQL part and a <a href="https://jupyter.org/">Jupyter Notebook</a> hosted on <a href="https://colab.research.google.com">Google Colab</a> to complete the Python part of the task. They submit their solution by creating a Pull Request on their repository. To assess the results, use the predefined code review scorecard that has the review instructions along with the reference implementation.

Chicago Crime Analysis - Level 1

The goal of this task is to find answers to a list of questions about the crimes committed in Chicago by working with the <a href='https://console.cloud.google.com/marketplace/product/city-of-chicago-public-data/chicago-crime'>Chicago Crime Dataset</a>. The candidate is expected to use SQL to query data and Python to manipulate data frames, perform more advanced statistics (e.g., t-tests), and provide visualizations. The candidate gets access to a private GitHub repository with the task description and a Jupyter Notebook. They are expected to use <a href='https://cloud.google.com/bigquery'>BigQuery</a> to complete the SQL part and a <a href='https://jupyter.org/'>Jupyter Notebook</a> hosted on <a href='https://colab.research.google.com'>Google Colab</a> to complete the Python part of the task. They submit their solution by creating a Pull Request on their repository. To assess the results, use the predefined code review scorecard that has the review instructions along with the reference implementation.

Chicago Crime Analysis - Level 2

Chicago Crime Analysis - Level 3

The goal of this task is to build a multi-step ticket-ordering frontend app. The candidate is expected to implement well-organized state management. The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and functional tests. They submit their solution by creating a Pull Request. The evaluation is based on the results of the automated functional tests and the code review scorecard.

Multi Step Form - Level 1

The goal of this task is to build a multi-step ticket-ordering frontend app. The candidate is expected to: <ol> <li>Implement handling of user input errors;</li> <li>Implement well-organized state management;</li> <li>Demonstrate what they see as production-ready frontend code;</li> </ol> The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and functional tests. They submit their solution by creating a Pull Request. The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the Frontend competence.

Multi Step Form - Level 2

Project setup

The goal of this task is to implement the business logic of a simple notes app.
 
 The candidate gets access to a private GitHub repository with the task description, a React/NextJS project with the predefined UI, and functional tests.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the automated functional tests.

Notes App React

Notes App Vue

Hosted Transaction Management API

The goal of this task is to build a frontend app that integrates with a REST API.
 
 The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and functional tests.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the target competence.

Transaction Management Frontend - Level 1

The goal of this task is to build a frontend app that integrates with a REST API.
 
 In particular, the candidate is expected to:
 <ul> 
 <li>Implement handling of user input errors;</li>
 <li>Implement handling of unexpected server errors;</li>
 <li>Demonstrate their approach to unit testing;</li>
 <li>Organize code in a readable and maintainable way.</li>
 <ul/>
 The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and functional tests.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the target competence.

Transaction Management Frontend - Level 2

The goal of this task is to build a frontend app that integrates with a REST API.
 
 In particular, the candidate is expected to:
 <ul> 
 <li>Implement handling of user input errors;</li>
 <li>Implement handling of unexpected server errors;</li>
 <li>Demonstrate their approach to unit testing;</li>
 <li>Organize code in a readable and maintainable way;</li>
 <li>Ensure that the app doesn't freeze while handling the server API requests.</li>
 </ul>
 The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and functional tests.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the target competence.

Transaction Management Frontend - Level 3

The goal of this task is to build a fullstack app that implements and integrates with a REST API.
 
 The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and functional tests.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the target competence.

Transaction Management Fullstack - Level 1

The goal of this task is to build a fullstack app that implements and integrates with a REST API.
 
 In particular, the candidate is expected to:
 <ul> 
 <li>Implement handling of user input errors;</li>
 <li>Demonstrate their approach to unit testing;</li>
 <li>Organize code in a readable and maintainable way.</li>
 <ul/>
 The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and functional tests.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the target competence.

Transaction Management Fullstack - Level 2

The goal of this task is to build a fullstack app that implements and integrates with a REST API.
 
 In particular, the candidate is expected to:
 <ul> 
 <li>Implement handling of user input errors;</li>
 <li>Demonstrate their approach to unit testing;</li>
 <li>Organize code in a readable and maintainable way;</li>
 <li>Ensure that the frontend doesn't freeze while handling the server API requests.</li>
 </ul>
 The candidate gets access to a private GitHub repository with the task description, a project boilerplate, and functional tests.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the automated functional tests and the code review scorecard that covers more advanced aspects within the target competence.

Transaction Management Fullstack - Level 3

Hosted Meal API

The goal of this task is to build a mobile app that integrates with a REST/GraphQL API.
 
 The candidate gets access to a private GitHub repository with the task description and a project boilerplate.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the code review scorecard.

Meal Roulette App Mobile - Level 1

The goal of this task is to build a mobile app that integrates with a REST/GraphQL API.
 
 In particular, the candidate is expected to:
 <ul>
 <li>Ensure that the app doesn't freeze while handling the server API requests;</li>
 <li>Demonstrate their approach to unit testing;</li>
 <li>Organize code in a readable and maintainable way.</li>
 <ul/>
 The candidate gets access to a private GitHub repository with the task description and a project boilerplate.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the code review scorecard.

Meal Roulette App Mobile - Level 2

The goal of this task is to build a mobile app that integrates with a REST/GraphQL API.
 
 In particular, the candidate is expected to:
 <ul>
 <li>Ensure that the app doesn't freeze while handling the server API requests;</li>
 <li>Demonstrate their approach to unit testing;</li>
 <li>Organize code in a readable and maintainable way;</li>
 <li>Demonstrate their approach to dealing with large data sets by implementing pagination for the meal list.</li>
 <ul/>
 The candidate gets access to a private GitHub repository with the task description and a project boilerplate.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the code review scorecard.

Meal Roulette App Mobile - Level 3

Hosted Movie API

Movie App Mobile - Level 1

Movie App Mobile - Level 2

The goal of this task is to build a mobile app that integrates with a REST/GraphQL API.
 
 In particular, the candidate is expected to:
 <ul>
 <li>Ensure that the app doesn't freeze while handling the server API requests;</li>
 <li>Demonstrate their approach to unit testing;</li>
 <li>Organize code in a readable and maintainable way;</li>
 <li>Demonstrate their approach to dealing with large data sets by implementing pagination for the movie list.</li>
 <ul/>
 The candidate gets access to a private GitHub repository with the task description and a project boilerplate.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the code review scorecard.

Movie App Mobile Pagination - Level 3

The goal of this task is to build a mobile app that integrates with a REST API.
 
 The candidate gets access to a private GitHub repository with the task description and a project boilerplate.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the code review scorecard.

Transaction Management Mobile - Level 1

The goal of this task is to build a mobile app that integrates with a REST API.
 
 In particular, the candidate is expected to:
 <ul> 
 <li>Implement handling of user input errors;</li>
 <li>Implement handling of unexpected server errors;</li>
 <li>Demonstrate their approach to unit testing;</li>
 <li>Organize code in a readable and maintainable way.</li>
 <ul/>
 The candidate gets access to a private GitHub repository with the task description and a project boilerplate.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the code review scorecard.

Transaction Management Mobile - Level 2

The goal of this task is to build a mobile app that integrates with a REST API.
 
 In particular, the candidate is expected to:
 <ul> 
 <li>Implement handling of user input errors;</li>
 <li>Implement handling of unexpected server errors;</li>
 <li>Demonstrate their approach to unit testing;</li>
 <li>Organize code in a readable and maintainable way;</li>
 <li>Ensure that the app doesn't freeze while handling the server API requests.</li>
 <ul/>
 The candidate gets access to a private GitHub repository with the task description and a project boilerplate.
 
 They submit their solution by creating a Pull Request.
 
 The evaluation is based on the results of the code review scorecard.

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