Coding Tests

Online coding tests & interview questions

Devskiller’s coding test catalog contains real-life work sample coding and programming tests. Our coding tests are powered by the RealLifeTesting™ methodology which helps you to single out qualified developers with the required skill set.

Browse our range of coding tests that cover over 220+ languages, resources, and skills. Finding your next developer has never been easier with DevSkiller coding tests and interview questions.

Python
JUNIOR
Tested skills
Duration
65 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Python

Programming task - Level: Easy

Python | PySpark | ML Logs Transformer - Complete the implementation of the logs transformation pipeline.

Scala
JUNIOR
Tested skills
Duration
66 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Scala

Programming task - Level: Easy

Scala | Spark | ML Logs Transformer - Complete the implementation of the logs' transformation pipeline.

Java
JUNIOR
Tested skills
Duration
120 minutes max.
Evaluation
Automatic
Test overview

Front End programming task - Level: Easy

JavaScript | TypeScript | Invoice application - frontend - Implement the front-end part for merging and aggregating the invoice data with currency exchange rates.

Back End programming task - Level: Easy

Java | Invoice application - backend - Implement the backend part for searching and aggregating invoice data with the service and the DAO methods.

Ubuntu
SENIOR
Tested skills
Duration
60 minutes max.
Evaluation
Automatic
Test overview

DevOps task - Level: Hard

DevOps | Ubuntu | Ansible Dynamic Inventory plugin - The purpose of this task is to check Ansible plugin writing skills (advanced Ansible skill). To complete this task, candidate must know some programming language.

CentOs
SENIOR
Tested skills
Duration
60 minutes max.
Evaluation
Automatic
Test overview

DevOps task - Level: Hard

DevOps | CentOs | Ansible Dynamic Inventory plugin - The purpose of this task is to check Ansible plugin writing skills (advanced Ansible skill). To complete this task, candidate must know some programming language.

.NET
MIDDLE
Tested skills
Duration
70 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of .NET, C#

Programming task - Level: Medium

.NET | C# | Population Statistical Data Analyzer - The candidate must finish the implementation of 4 methods: two which parse data stored as JSON and prepare correct tree structure; the other two which search tree and return proper information by criteria.