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.
assessing knowledge of Blockchain, Ether, Smart Contracts
assessing knowledge of Blockchain, Ethers
Blockchain | Simple Lottery - Implement the one time blockchain simple lottery.
assessing knowledge of JavaScript, React, JS
assessing knowledge of JavaScript, React
JavaScript | React, React Hooks, Redux, Redux-Toolkit | Simple website builder - Implement an initial version of a WYSIWYG editor that enables users to build a simple website just by picking HTML tags from the widget and filling all the attributes they need.
assessing knowledge of Apex, Salesforce
assessing knowledge of Apex, Salesforce
Salesforce | Apex | Library application - Create an application allowing library to manage books, their borrowings and prepare some
reports about books which were not returned on time. Your current task is to finish implementation of missing service
methods.
assessing knowledge of Dart, Flutter, Isolates, Native, Asynchronous programming, Futures
assessing knowledge of Basic Widgets, Flutter, Flutter Core, Dart, Objective programming
Flutter | Dart | Weather app - Implement new functionalities to the given simple app that displays live weather forecasts for cities in Poland.
assessing knowledge of Ruby
assessing knowledge of Ruby
Ruby | Drug Analyzer - As a member of a biotechnology programming team you are responsible for creating a system for lab technicians, which will assist them with drug analysis. The goal is to create the application that will let them input their findings into the system, provide a meaningful analysis and verify the correctness of the data that they have sent.
assessing knowledge of Apex, Salesforce
assessing knowledge of Apex, Salesforce
Salesforce | Apex | Library application - Create an application allowing a library to manage books and their borrowings. Your current task is to finish the implementation of the missing service methods.
assessing knowledge of Apex, Salesforce
assessing knowledge of Apex, Salesforce
Salesforce | Apex | Library application - Create an application allowing the library to manage their books stock. Finish the implementation of the missing service methods.
assessing knowledge of Angular, JavaScript
assessing knowledge of Angular, JavaScript, Angular CLI
JavaScript | Angular | Car List - Finish displaying the car list and the details.
assessing knowledge of Anonymity, Blockchain, Decentralization
assessing knowledge of Blockchain, Web3
Blockchain | Solidity | Price Calculator - Implement price calculator for incoming manufactory product data with time reset functionality.
assessing knowledge of Ruby, Ruby on Rails
assessing knowledge of Ruby, Ruby on Rails
Ruby | Ruby on Rails | Search-Engine Application with Rails - Add ordering, tags, price and name filtering endpoint for online shop application.
assessing knowledge of Apex, Salesforce
assessing knowledge of Apex, Salesforce
Salesforce | Apex | Operation method - Implement a method to sum up the numbers from a given list of strings. Please remember that at the beginning of this task 20% of verification test are already resolved.
assessing knowledge of Accounts, Blockchain, Ethereum
assessing knowledge of Blockchain, Ethers
Blockchain | OpenZeppelin Contracts - FT with OpenZeppelin contracts functionalities.
assessing knowledge of Apex, Salesforce
assessing knowledge of Apex, Salesforce
Salesforce | Apex | Orders Analyzer | Find an average order value for every weekday - Implement OrdersAnalyzer#averageDailySales method that returns a map of days of a week and rounds the average value to the nearest integer.
assessing knowledge of Apex, Salesforce, data types
assessing knowledge of Apex, Salesforce
Salesforce | Apex | Find duplicates - Implement findDuplicates method that returns a new list containing duplicates which occured N-times.
assessing knowledge of Apex, Salesforce
assessing knowledge of Apex, Salesforce
Salesforce | Apex | Implement REST API for handling Product Reviews - Implement Http GET and POST REST API requests that let get existing reviews and insert new ones.
assessing knowledge of R, R Fundamentals
assessing knowledge of R, R Fundamentals
R | Base R | Matrix and Vector Operations - Implement a function that calculates a few mathematical and statistical procedures.
assessing knowledge of Angular, JavaScript
assessing knowledge of Angular, JavaScript
JavaScript | Angular | Static Pages Editor - Complete the static pages form implementation
assessing knowledge of Apex, Salesforce
assessing knowledge of Apex, Salesforce
Salesforce | Apex | Flights manager - Finish the implementation of an MVP of an application responsible for managing flights data.
assessing knowledge of Anonymity, Blockchain, Decentralization, DLT, Leger
Blockchain | Solidity | Staking - A smart contract with a staking functionality.
assessing knowledge of Python 3.x, Logical thinking, Sequence, Soft Skills
Python | NumPy | Graph Convolutional Networks - Implement a simple Graph Convolution Network.
assessing knowledge of Python 3.x
assessing knowledge of Python 3.x
Python | Class Programming, Customer Relationship Management App - Implement a REST API client with OOP techniques using Python 3.
assessing knowledge of Python
assessing knowledge of Python
Python | Django | Books CRUD Application - This application uses Python 3 and Django 1.11. It contains a Books module for managing book entities.
assessing knowledge of Python
assessing knowledge of Python
Python | Pandas | Spreadsheet to HTML table - Process the input file and generate HTML with "general classification" table as a result.
assessing knowledge of Python
assessing knowledge of Python
Python | Flask | Split Expenses App - Write a simple app to split expenses among your friends.
We have coding tests available for a range of roles and positions at every level. Without naming all of them, here are just a handful of positions you can test for with our code tests:
All DevSkiller coding tests are powered by the RealLifeTesting Methodology™. This form of testing is totally unique to DevSkiller and provides valuable insight into the candidate’s skills. It works by testing with real-world problems and tasks that they are likely to face on the job. This methodology will not only provide a clear understanding of the candidate’s coding skills but also their critical thinking, problem-solving ability, and time management skills.
Want to start testing your developer candidates using your own codebase? No problem! With DevSkiller and our online task wizard, building your very own custom tests has never been easier. Choose the languages, resources, and skills you want to test, set the test difficulty and duration, plus loads more. Finding the right candidate today with DevSkiller and our coding test catalog.
We understand that it’s important to think carefully before making financial decisions for your company. Rather than listening to us, why not have a read about what one of our many satisfied customers have to say about DevSkiller code tests.
Plutora
Plutora is a leading player in value stream management, with release, test environment, and analytics solutions for enterprise IT. Prior to implementing DevSkiller, Plutora used phone interviews to preselect their candidates. Those who passed were invited to a technical interview which was followed by a behavioral interview. The lack of automation in this process meant that it required a lot of manual work on their side. Also, the effectiveness of phone screening was insufficient and meant many candidates progressed to the interview stages.
The decision was made to introduce DevSkiller coding tests to help automate the technical screening process, limit the number of interviews, and identify the right candidates before the interview stage. With the successful implementation of DevSkiller code tests, Plutora was able to save approximately 8 hours per candidate of their internal development team. That’s because they don’t have to spend time interviewing weak candidates.
“Thanks to automating the screening stage, we were able to reduce the interview rate by 50%. At the same time, the quality of candidates who make it to the interview stage is now much greater. DevSkiller adds an extra layer of quality to our technical hiring process” – Richard Williams – VP of engineering at Plutora
The RealLifeTestingTM methodology serves as the basis of all DevSkiller coding tests. This form of testing is unique because unlike other methods of screening like games or algorithmic puzzles, RealLifeTestingTM provides a 360-degree view of a developer’s skills. The central belief of this methodology is that the most accurate way to evaluate the developmental skills of a candidate is through work sample tests that mirror the actual work they’ll be doing on the job. DevSkiller coding tests task candidates with building full project apps or adding features to existing apps, just like they’ll be doing after being hired. To be successful, candidates must display their knowledge of coding and resources such as Stack Overflow to come up with solutions and problem solving for any issues they encounter. The results will provide insight into the candidate’s academic knowledge, coding skill, decision making, code cleanliness, and problem-solving ability.
The DevSkiller platform gets to work as soon as the candidate finishes their test. The results are automatically generated into a report that even a non-techncial recruiter can understand. Candidates are graded on whether the solution would run (an essential factor in all software development), whether or not there are any errors in the code, code quality, and how it works in edge cases. DevSkiller coding tests are also subject to a series of robus plagiarism features that compare results to previous solutions from other candidates.
DevSkiller code tests are fully remote and can be sent anywhere in the world. All the recruiter needs to do is send the candidate a test invite. DevSkiller code tests can be set to be available for a specific amount of time, for example, within 3 days. Candidates can elect to start the test at a time of their choosing, and they have the option of using our state of the art in-browser IDE or completing the project on their favorite IDE and then cloning the project to GIT. As candidates are taking the test, they can elect to run unit tests to make sure their solutions work as they’re supposed to. DevSkiller predefined coding tests have a set time limit. Once the time expires, the code test is automatically evaluated and the report is sent to the recruiter.
