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Software Engineering Online Test

About the test:

The Software Engineer Online Test uses scenario-based MCQs to evaluate candidates on their understanding of core computer science concepts such as data structures, algorithms, databases, programming paradigms, and design patterns. The test also includes a coding question to evaluate problem-solving and hands-on programming ability.

Covered skills:

  • Object-Oriented Programming
  • Algorithms and Data Structures
  • Web Development
  • Code Optimization
  • Database Design
  • Testing and Quality Assurance
  • Software Security

9 reasons why
9 reasons why

Adaface Software Engineering Test is the most accurate way to shortlist Software Engineer (SWE)s



Reason #1

Tests for on-the-job skills

The Software Engineering Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

  • Ability to design and implement object-oriented solutions
  • Proficiency in database design and normalization
  • Knowledge of algorithms and data structures
  • Understanding of testing principles and quality assurance techniques
  • Experience in web development technologies and frameworks
  • Familiarity with software security principles and best practices
  • Ability to optimize code for performance and efficiency
Reason #2

No trick questions

no trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface
Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

These are just a small sample from our library of 10,000+ questions. The actual questions on this Software Developer Test will be non-googleable.

🧐 Question

Medium

Decryptor
Strings
Solve
What does the following pseudo code print?
 image

Hard

Fibonacci codes
Time Complexity
Pseudo Code
Solve
Here are three pseudocodes for calculating the Nth Fibonacci number. Which of the following statements about these codes are true?
 image
A: Time complexity/efficiency of CODE 1, CODE 2, CODE 3 is the same.
B: CODE 2 is more space-efficient than CODE 3.
C: CODE 3 is more space-efficient than CODE 2.
D: CODE 2 is more time-efficient than CODE 1.
E: CODE 3 is more time-efficient than CODE 1.

Hard

Palindrome Test cases
Strings
Solve
Go through the following faulty palindrome detection pseudocode and test cases. For which of the test cases would the code return true?
 image
Testcases
A: a
B: aba
C: aaa
D: aac

Medium

Rewards Activities Order
Database Connection
Solve
A new popular app tracks the activities performed by its users and grants them rewards based on each individual's total activities performed in a year. This data is maintained in a database table (activitesinfo), with the following columns: userid, totalactivities, reward. This year, due to fundraising activity, the company has decided to further reward its users by enhancing the reward as per the following formula: If reward < = 4000, increase it by 2%, If 4000 < reward <= 8000, increase it by 4%, If reward > 8000, increase it by 6%.
The tech team has written three different scripts to calculate increment for each slab, each script is to run as a separate transaction. Here are the three scripts:
Script 1:
For users with reward <= 4000, set reward = reward * 1.02

Script 2:
For users with reward > 4000 and reward <= 8000, set reward = reward * 1.04

Script 3:
For users with reward > 8000, set reward = reward * 1.06
Each script is to be executed separately. Which of the following options will update the rewards as expected:
A: Execute Script 1 followed by Script 2 followed by Script 3
B: Execute Script 2 followed by Script 3; Script 1 running concurrently throughout
C: Execute Script 3 followed by Script 2; Script 1 running concurrently throughout
D: Execute Script 3 followed by Script 2 followed by Script 1
E: Execute Script 2 followed by Script 3 followed by Script 1

Hard

Graph Traversal and Data Storage
Graph Theory
Algorithm Analysis
Solve
Consider the following pseudo code implementing a specific graph traversal algorithm:
 image
What is the order in which the nodes are processed, and which data structure best represents the graph `G` for efficient traversal?

Medium

Implementing a Browser's Back Button
Stack
Data Handling
Solve
You are tasked with implementing the "Back" button functionality in a web browser. This feature allows users to return to previously visited web pages in the order they were viewed. The browser maintains a history of URLs in a data structure. Considering the nature of web browsing, where users can go back multiple steps and then navigate to a new page (at which point the future history should be cleared), which data structure and algorithm would best implement this functionality?
A: Use a heap, add the current URL when navigating to a new page, and remove the top element when the back button is used.
B: Use a queue, enqueue the current URL when navigating to a new page, and dequeue when the back button is used.
C: Use a single stack, push the current URL when navigating to a new page, and pop when the back button is used.
D: Use an array, add the current URL to the end when navigating to a new page, and remove the last URL when the back button is used.
E: Use a linked list, add the current URL to the head when navigating to a new page, and move backwards when the back button is used.
F: Use two stacks, push the current URL to the first stack when navigating to a new page, and use the second stack to store the pages when the back button is used.

Easy

Linked List Element Removal
Linked Lists
Element Removal
Solve
Consider a singly linked list where each node contains an integer value. Write a function `removeElement` that removes all occurrences of a specific value from the linked list. The function should return the head of the modified linked list.

Pseudo code:
 image
What will be the content of the linked list referred to by `result` after executing the above pseudo code?

Easy

Registration Queue
Logic
Queues
Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount.
For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition.
⚠️⚠️⚠️ Note:
- The first line of the input is the length of the array. The second line contains all the elements of the array.
- The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function.
- You need to "print" the final result (not return it) to pass the test cases.

For the example discussed above, the input will be:
5
20 70 -40 30 -10

Your code needs to print the following to the standard output:
20 70 30 -40 -10

Medium

Visitors Count
Strings
Logic
Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. 
Example:

Input:
WWMMWWCCC

Expected Output: 
4W3C2M

Explanation: 
‘W’ has the highest count, then ‘C’, then ‘M’. 
⚠️⚠️⚠️ Note:
- The input is already parsed and passed to a function.
- You need to "print" the final result (not return it) to pass the test cases.
- If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’.
- If any of them have the same count, the output should follow this order - M, W, C.
🧐 Question🔧 Skill

Medium

Decryptor
Strings

2 mins

Technical Aptitude
Solve

Hard

Fibonacci codes
Time Complexity
Pseudo Code

2 mins

Technical Aptitude
Solve

Hard

Palindrome Test cases
Strings

2 mins

Technical Aptitude
Solve

Medium

Rewards Activities Order
Database Connection

3 mins

Technical Aptitude
Solve

Hard

Graph Traversal and Data Storage
Graph Theory
Algorithm Analysis

3 mins

Data Structures
Solve

Medium

Implementing a Browser's Back Button
Stack
Data Handling

2 mins

Data Structures
Solve

Easy

Linked List Element Removal
Linked Lists
Element Removal

2 mins

Data Structures
Solve

Easy

Registration Queue
Logic
Queues

30 mins

Coding
Solve

Medium

Visitors Count
Strings
Logic

30 mins

Coding
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
Decryptor
Strings
Technical Aptitude
Medium2 mins
Solve
Fibonacci codes
Time Complexity
Pseudo Code
Technical Aptitude
Hard2 mins
Solve
Palindrome Test cases
Strings
Technical Aptitude
Hard2 mins
Solve
Rewards Activities Order
Database Connection
Technical Aptitude
Medium3 mins
Solve
Graph Traversal and Data Storage
Graph Theory
Algorithm Analysis
Data Structures
Hard3 mins
Solve
Implementing a Browser's Back Button
Stack
Data Handling
Data Structures
Medium2 mins
Solve
Linked List Element Removal
Linked Lists
Element Removal
Data Structures
Easy2 mins
Solve
Registration Queue
Logic
Queues
Coding
Easy30 minsSolve
Visitors Count
Strings
Logic
Coding
Medium30 minsSolve
Reason #4

1200+ customers in 75 countries

customers in 75 countries
Brandon

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!


Brandon Lee, Head of People, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Software Developer Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests
Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the Software Developer Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

invite candidates
Reason #7

Detailed scorecards & benchmarks

View sample scorecard
Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

test completion rate
Reason #9

Advanced Proctoring


Learn more

About the Software Engineering Assessment Test

Why you should use Pre-employment Software Engineering Online Test?

The Software Developer Test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

  • Understanding of Object-Oriented Programming principles
  • Proficient in designing and implementing databases
  • Solid understanding of algorithms and data structures
  • Experience in testing and quality assurance processes
  • Proficiency in web development technologies
  • Familiarity with software security best practices
  • Ability to optimize code for better performance
  • Knowledge of software development lifecycle
  • Experience with version control systems
  • Understanding of software architecture principles

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the Software Engineering Online Test?

  • Object-Oriented Programming

    Object-Oriented Programming (OOP) is a programming paradigm that organizes software design around the concept of objects, which can contain data and code. It promotes modular and reusable code, and allows for easier maintenance and modification of software systems. This skill should be measured in the test to assess a candidate's ability to design and implement efficient and scalable software solutions using OOP principles.

  • Database Design

    Database Design involves designing the structure and organization of a database system. It includes defining tables, relationships, and constraints to efficiently store and retrieve data. This skill is crucial as it ensures data integrity, performance, and security in software applications that rely on databases for storing and managing information.

  • Algorithms and Data Structures

    Algorithms and Data Structures are foundational concepts in computer science that deal with the design and analysis of efficient algorithms and data organization. Proficiency in this skill allows software engineers to create fast and reliable software systems by choosing appropriate algorithms and data structures that efficiently solve complex problems.

  • Testing and Quality Assurance

    Testing and Quality Assurance (QA) is the process of evaluating software to ensure it meets the desired quality standards. It involves creating and executing test cases, identifying and fixing bugs, and validating software functionality. This skill is important to measure as it determines the reliability, stability, and user satisfaction of software applications.

  • Web Development

    Web Development involves creating and maintaining websites and web applications. It includes front-end development, back-end development, and integration of various technologies to deliver a seamless and interactive user experience. This skill is necessary to assess as web development is a fundamental aspect of modern software engineering.

  • Software Security

    Software Security encompasses measures taken to protect software systems from unauthorized access, data breaches, and other security threats. It involves implementing secure coding practices, encryption, and authentication mechanisms. This skill is essential as it ensures the safety and confidentiality of sensitive information in software applications.

  • Code Optimization

    Code Optimization is the process of improving the efficiency and performance of software code. It involves analyzing and modifying code to reduce its execution time, memory usage, and resource consumption. This skill is important to measure as it demonstrates a candidate's ability to write highly optimized and scalable code, resulting in faster and more efficient software systems.

  • Full list of covered topics

    The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for Software Developer Test to be based on.

    Inheritance
    Polymorphism
    Encapsulation
    Relational Database Design
    Normalization
    Sorting Algorithms
    Linked Lists
    Binary Trees
    Unit Testing
    Integration Testing
    Performance Testing
    Front-end Development
    Back-end Development
    RESTful APIs
    Secure Coding Practices
    Authentication and Authorization
    Code Profiling
    Code Refactoring
    Concurrency
    Agile Methodology
    Version Control
    Software Development Lifecycle
    Object-Relational Mapping
    Transaction Management
    Model-View-Controller (MVC)
    Continuous Integration
    Continuous Deployment
    Defect Tracking
    Cross-site scripting (XSS) prevention
    Buffer Overflow
    Code Smells
    Refactoring Techniques
    Asymptotic Analysis
    Big O Notation
    Hashing
    Graph Algorithms
    Responsive Design
    Cross-browser Compatibility
    Data Encryption
    Secure Session Management
    Code Review
    Static Testing
    Load Testing
    Usability Testing
    Scrum Framework
    Git Workflow
    Distributed Version Control
    Database Indexing
    Database Normalization
    Concurrency Control
    Network Security
    Secure Software Development
    Performance Optimization
    Database Performance Tuning
    Dependency Injection
    Test-driven Development
    User Acceptance Testing
    Continuous Integration/Continuous Delivery (CI/CD)
    Object-Oriented Design Patterns
    Data Structures and Algorithms
    Web Application Security
    Code Debugging
    Agile Testing
    User Interface Design
    E-commerce Development
    Software Configuration Management
    System Integration Testing

What roles can I use the Software Engineering Online Test for?

  • Software Engineer (SWE)
  • Software Developer
  • Full Stack Engineer
  • Web Developer
  • Full Stack Developer

How is the Software Engineering Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

  • Experience in designing scalable and maintainable systems
  • Expertise in database optimization techniques
  • Proficiency in front-end development frameworks
  • Knowledge of system analysis and design
  • Familiarity with server-side programming languages
  • Ability to troubleshoot and debug complex issues
  • Experience in designing user-friendly interfaces
  • Understanding of software testing methodologies
  • Knowledge of multi-threading and concurrency
  • Proficiency in data modeling and normalization
  • Experience in performance tuning and optimization

The coding question for experienced candidates will be of a higher difficulty level to evaluate more hands-on experience.

Singapore government logo

The hiring managers felt that through the technical questions that they asked during the panel interviews, they were able to tell which candidates had better scores, and differentiated with those who did not score as well. They are highly satisfied with the quality of candidates shortlisted with the Adaface screening.


85%
reduction in screening time

Software Engineering Hiring Test FAQs

Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test.

Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Non-googleable questions
  • IP proctoring
  • Screen proctoring
  • Web proctoring
  • Webcam proctoring
  • Plagiarism detection
  • Secure browser
  • Copy paste protection

Read more about the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

Yes, you can sign up for free and preview this test.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

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