Middle developer skill test and interview questions

Use a Middle developer skill test to assess and measure the abilities of Middle-level job applicants. Pick a test from our wide range of frameworks, such as C++, Django, and JavaScript. Make better use of your time and screen applicants with a test to take only the best applicants through to the next stage of the interview process.

TypeScript
MIDDLE
Tested skills
Duration
72 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Typescript

Code gaps

assessing knowledge of Typescript

Programming task - Level: Medium

TypeScript | Redux, Selectors | HR Department Salary - Implement Redux Selectors which will process HR data. Implementation will be tested against snapshot tests.

nunit
MIDDLE
Tested skills
Duration
85 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of .NET, .NET Core, ML.NET, QA, Testing, xUnit, NUnit

Code gaps

assessing knowledge of NUnit, QA

Programming task - Level: Medium

QA | .NET | NUnit | Tests for Document Management System API - Implement an NUnit test that checks business requirements for a Documents API for a Document Management System

junit
MIDDLE
Tested skills
Duration
64 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of JUnit, QA

Code gaps

assessing knowledge of JUnit, JUnit4, QA, JUnit 5, Java

Programming task - Level: Medium

QA | JUnit | ATM Service | Authentication and deposit validation - Write test cases to verify the Automated Teller Machine (ATM) software.

security
MIDDLE
Tested skills
Duration
55 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Math, Probability, Soft Skills, Logical thinking, Sequence, Mathematics, Cybersecurity

Code gaps

assessing knowledge of Cybersecurity, Nmap, Portscan, Hashing, MD5, Password

Testing task - Level: Medium

Cybersecurity | Command Injection | Router - In this challenge the contestant is given a task with a router's coniguration page. This instance is vulnerable to command injection. By finding the right syntax to invoke system commands the contestant has to leak additional information from the filesystem.

MySQL
MIDDLE
Tested skills
Duration
60 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Math, Probability, Soft Skills, SQL

Code gaps

assessing knowledge of MySQL, SQL

Task - Level: Medium

SQL | MySQL | Software House | Devs and their projects - The Head of the development team assigned you a task to create a list of developers with their role in the ongoing projects.

Java
MIDDLE
Tested skills
Duration
75 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Core Java, Java, Serialization, Date and Time, Generics

Code gaps

assessing knowledge of Core Java, Java, Memory Management, Network Communication, Lambda Expressions

Programming task - Level: Medium

Java | Library application - Creating an application allowing the library to manage books and their borrowings. Your current task is to finish the implementation of missing service methods.

java
MIDDLE
Tested skills
Duration
58 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Core Java, Java, Stream API, I/O system, Date and Time

Code gaps

assessing knowledge of Core Java, Java, Network Communication

Programming task - Level: Medium

Java | Azure | Production summarizer - Create an Azure function. Your current task is to finish implementation of production summarizer returning information about how many cars were produced by a particular plant.

React
MIDDLE
Tested skills
Duration
96 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of JavaScript, React,

Code gaps

assessing knowledge of JavaScript, React, ES6

Programming task - Level: Medium

JavaScript | React, Class Components, Enzyme | Contact Form - Finish the implementation of a simple form React application.

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

Choice questions

assessing knowledge of Logical thinking, Sequence, Soft Skills, Cybersecurity

Code gaps

assessing knowledge of Cybersecurity, Hashing, MD5, Password, Nmap, Portscan, Nnetcat

Testing task - Level: Medium

Cybersecurity | SSTI Challenge - In this challenge the contestant is given a task with a microblog engine. The task is to achieve remote execution on the server. The flawed usage of templates enables that

Android
MIDDLE
Tested skills
Duration
41 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Android

Code gaps

assessing knowledge of Android, Kotlin

Programming task - Level: Medium

Android | Kotlin | RecyclerView | To-do List - Create a simple to-do list where each item is a list item in the RecyclerView.

Flutter
MIDDLE
Tested skills
Duration
72 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Asynchronous programming, Dart, Flutter, Futures, Core, InheritedWidget

Code gaps

assessing knowledge of Dart, Extension, Flutter, Theme

Programming task - Level: Medium

Flutter | Simple Employees Catalogue Application - Implement search with filters for list with employees.

Node.JS
MIDDLE
Tested skills
Duration
87 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of JavaScript, Node.JS

Code gaps

assessing knowledge of JavaScript, Node.JS, SQL

Programming task - Level: Medium

Node.JS | Rest API | News backend service - Implement a news backend service created in Node.JS with Vanilla JS including writing authorization and Rest APIs.

Java
MIDDLE
Tested skills
Duration
104 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java, Spring Boot

Code gaps

assessing knowledge of Core Java, Exceptions, Java, Generics, I/O system

Programming task - Level: Medium

Java | Couchbase, Spring Boot | Card Payments - Create a card payment processing microservice. Finish the implementation of saving payment data into Couchbase and communicate with other services.

SQL
MIDDLE
Tested skills
Duration
53 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of SQL, PostgreSQL

Code gaps

assessing knowledge of PostgreSQL, SQL

Task - Level: Medium

SQL | PostgreSQL | Music Store | Time function - Calculate the duration of all songs in each cd and output a list.

python
MIDDLE
Tested skills
Duration
86 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Python 3.x

Code gaps

assessing knowledge of Lambdas, Python 3.x, QA

Programming task - Level: Medium

Python | API Flask - You are working as a member of a Data Science team that is responsible for creating simple linear functions to predict various economic indicators. You are a new member of the Software Development Team and your goal is to expand the current Flask application to let Data Scientists post their models via API, store them in a Database, view them and get some predictions out of them, based on an input value.

Flask
MIDDLE
Tested skills
Duration
106 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Python 3.x

Code gaps

assessing knowledge of Flask, Microservices, Python 3.x

Programming task - Level: Medium

Python | Flask, Matplotlib | Math Models Verifier - Implement an application to assist Data Scientists in storing their models and getting the predictions from them.

python
MIDDLE
Tested skills
Duration
93 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Python 3.x

Code gaps

assessing knowledge of Python 3.x

Programming task - Level: Medium

Python | REST Client for Shipping company - A simple and customizable shipment manager with a client for a REST API of a shipping company uses a simple Basic Auth and uses its own custom, serializable data structures. This task will test practical Python 3 skills as well as basic REST API interaction knowledge. This application uses Python 3 and OAuthLib 3.1.0.

python
MIDDLE
Tested skills
Duration
63 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Python 3.x

Code gaps

assessing knowledge of Python 3.x

Programming task - Level: Medium

Python | Drug Analyzer - You are a member of a biotechnology programming team that is responsible for creating a system for lab technicians, which will assist them with drug analysis. Your 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.

junit
MIDDLE
Tested skills
Duration
66 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of QA, Testing, Unit-Testing, Manual Testing

Code gaps

assessing knowledge of JUnit 5, Java, QA

Programming task - Level: Medium

QA | JUnit | ATM Service | Authentication and deposit validation

Salesforce
MIDDLE
Tested skills
Duration
93 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of SOQL, Salesforce, SOSL, Apex

Code gaps

assessing knowledge of SOQL, Salesforce, Apex

Programming task - Level: Medium

Salesforce | SOQL | Opportunities Counting - Counting Opportunities with Orders in a given fiscal year.

Programming task - Level: Medium

Apex | Record Updater Identification - Your task is to write a method that runs every time Opportunity is updated.

Selenium
MIDDLE
Tested skills
Duration
48 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of QA, Selenium, .NET, C#

Code gaps

assessing knowledge of Java, QA, Selenium

Programming task - Level: Medium

QA | .NET, Selenium | Data extraction - Implement methods in class SeleniumTask.SeleniumExecutor to pass successfully all tests.

azure
MIDDLE
Tested skills
Duration
78 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of CLI, DevOps, SysOps, Terraform, Azure

Code gaps

assessing knowledge of Terraform

Programming task - Level: Medium

DevOps | Terraform, Azure | VMSS - Use Terraform azurerm provider to provison VMSS with single outbound IP

junit
MIDDLE
Tested skills
Duration
73 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java and QA

Code gaps

assessing knowledge of Java and QA

Programming task - Level: Medium

QA | Java, JUnit | Vending Machine - Write unit tests for the verification of a Vending machine.

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