The Microsoft Software Development Engineer (SDE) Online Assessment is a key stage in the hiring process for both Intern and Experienced roles. It evaluates technical skills, problem-solving ability, and communication to identify candidates who can thrive in Microsoft’s innovative environment. The assessment includes coding challenges, system design tasks, and a video interview, testing both technical expertise and cultural fit.
Update: February 2025
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The Microsoft SDE Online Assessment consists of two primary components:
This dual-format evaluation ensures Microsoft can comprehensively assess a candidate’s technical aptitude and suitability for the role.
The coding portion of the assessment tests your ability to solve algorithmic and data structure-related problems efficiently and accurately. The questions are typically of easy to medium difficulty and are structured to evaluate the following key skills:
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Whether you’re improving runtime complexity, data structure application, or problem simplification, our interactive coding simulations ensure you develop the skills needed to tackle Microsoft’s assessment with confidence.
1. Determine if Two Trees are Identical (Easy)
Given two binary trees, the task is to find if both of them are identical or not.
Example 1:
Input:
1 1
/ \ / \
2 3 2 3
Output: Yes
Example 2:
Input:
1 1
/ \ / \
2 3 3 2
Output: No
2. Kadane's Algorithm (Medium)
Given an array Arr [] of N integers. Find the contiguous sub-array (containing at least one number) that has the maximum sum and return its sum.
Example 1:
Input:
N = 5
Arr[] = {1,2,3,-2,5}
Output: 9
Example 2:
Input:
N = 4
Arr[] = {-1,-2,-3,-4}
Output:
-1
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The Microsoft SDE video interview evaluates your interpersonal skills, teamwork, and cultural alignment with the company. You’ll face questions like “Tell me about yourself,” “Why Microsoft?” and “What’s your favourite Microsoft product and why?”, designed to assess your enthusiasm, understanding of Microsoft’s mission, and ability to collaborate effectively.
Our AI-powered interview feedback provides real-time analysis of both verbal and non-verbal communication, helping you refine tone, clarity, body language, and delivery. With job-specific insights, you’ll learn how to structure responses, project confidence, and align your answers with Microsoft’s expectations—ensuring you stand out in this critical stage of the hiring process.
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Preparation is the key to acing the Microsoft SDE Online Assessment. Here are some essential tips to help you excel:
Refresh your understanding of essential data structures, including arrays, linked lists, trees, stacks, and queues. Additionally, revisit key algorithms like sorting, searching, and traversal. These are frequently tested and form the foundation for solving more advanced problems.
Focus on improving your ability to write code that is both time and space efficient. Practice trading memory usage for execution speed where necessary, as this is a common requirement in technical interviews.
Study advanced data structures such as hashmaps, B-trees, B+ trees, and caches. Understanding these structures will help you solve large-scale problems and demonstrate your technical depth during the assessment.
Gain knowledge of system design concepts like load balancing, distributed computing, microservices, and database sharding. Familiarity with these topics can help you stand out, especially in interviews for experienced positions.
Utilise tools that provide AI-driven feedback to refine your coding skills and practice behavioural interview responses. This targeted feedback can help identify areas for improvement and ensure your answers align with Microsoft’s expectations.
The Microsoft SDE Online Assessment is a challenging yet rewarding opportunity for aspiring software engineers. With thorough preparation and a strong understanding of the assessment’s components, you can increase your chances of success. Our Microsoft SDE PrepPack will help you to hone your skills, refine your answers, and stand out as a top candidate!
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The Microsoft SDE online assessment is a two-part evaluation consisting of a 90-minute coding test and a video interview. It is designed to assess your technical skills, problem-solving abilities, and cultural fit for roles at Microsoft.
The video interview evaluates your soft skills, teamwork, and alignment with Microsoft’s culture. Questions typically focus on your motivations, experiences, and knowledge of the company’s products and mission.
To excel in the coding assessment:
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