Microsoft Interview Guide

Microsoft's interview loop is more balanced and more collaborative than most FAANG-adjacent loops. Coding problems lean toward the practical rather than the abstract, the behavioral bar is high and explicitly scored, and the "as appropriate" final-round interviewer holds extra weight in the hire decision. Understanding those three features changes how you prepare.

The Microsoft loop

A standard Microsoft software engineering loop runs four to five rounds, typically in a single day. Unlike Amazon or Google, Microsoft does not have a separate behavioral-only round or a hiring committee that reviews you without having met you. Instead, each interviewer scores multiple dimensions, and a designated "as appropriate" (AA) interviewer carries extra weight in the final decision.

1. 1

   Recruiter screen

   Filter30 min

   Background, motivation and level calibration. Microsoft levels go from SDE I (level 59) through Principal and Distinguished Engineer. Confirm the target level and role team in this conversation.
2. 2

   Technical phone screen

   1 round45-60 min

   One or two coding problems in a shared editor. Assess for basic coding ability, communication, and approach. Microsoft often uses more practical or applied problems at this stage rather than pure algorithmic puzzles.
3. 3

   On-site coding rounds

   Core2-3 rounds, 45-60 min each

   Medium-difficulty coding problems with a collaborative feel. Interviewers at Microsoft are trained to engage, not just observe - hints and dialogue are common. Scored on problem solving, code quality, and communication.
4. 4

   Design round

   Senior+45-60 min, SDE II+

   System or API design for mid-senior roles and above. Microsoft tends toward practical design scenarios that mirror real product or service challenges - not just abstract large-scale prompts.
5. 5

   Behavioral round

   Core30-45 min

   Explicit behavioral questions in every loop, often woven into coding rounds as well. Microsoft uses growth mindset and collaboration as recurring themes. Stories about learning from failure score particularly well.
6. 6

   As-appropriate round

   Elevated weight30-45 min

   A designated senior interviewer - often a Principal or Partner-level engineer or manager - runs an additional round with extra influence over the hire decision. See the section below for what this means in practice.

The coding bar

Microsoft's coding problems tend toward medium difficulty with a practical slant. You are less likely to encounter abstract puzzle problems and more likely to encounter problems that resemble real engineering challenges - parsing, graph traversal, design of a simple data structure, or algorithmic problems in a realistic context.

A meaningful difference from peers: Microsoft interviewers are explicitly trained to engage as collaborators, not passive observers. A hint or conversational nudge during a coding round is normal and does not mark you down. Taking a hint gracefully and incorporating it well scores better than ignoring it and getting stuck.

The as-appropriate interviewer

The "as appropriate" (AA) designation is Microsoft's equivalent of a senior calibration mechanism. The AA interviewer is a senior employee - typically a Principal Engineer, Partner-level manager, or above - who runs an additional loop round and whose hire/no-hire recommendation carries elevated weight in the debrief.

• The AA round can look like any other round - coding, design, or behavioral - but is typically broader and more exploratory. The AA interviewer often asks questions that probe depth rather than follow a standard template.
• The AA is looking for signals that distinguish a good candidate from a great one: engineering judgment, the ability to discuss trade-offs at a higher altitude, and clear evidence of impact and scope.
• At senior levels (SDE III+), the AA round is often where the level calibration is finalized. A particularly strong AA round can pull you toward a higher-level offer; a weak one can override strong scores from the rest of the loop.

Design and behavioral balance

Microsoft balances coding, design, and behavioral across the loop in a way that is more even than most FAANG-adjacent companies. At Google and Meta, coding dominates at junior and mid levels. At Microsoft, behavioral signals are treated seriously even for SDE I, and design is introduced earlier than at some peers.

Microsoft's collaborative style

Microsoft has invested deliberately in moving away from adversarial interview formats toward a more collaborative model. This reflects the growth mindset culture Satya Nadella introduced company-wide - the interview is as much about how you engage with feedback and uncertainty as about what you already know.

How level changes the loop

Microsoft's leveling system is detailed (59 through 80+ for individual contributors), and the loop structure and scoring bar shift at the main inflection points. Most external hires come in at levels 59-65; distinguished and technical fellow levels are almost exclusively internal promotions.

• SDE I (L59-60): two to three coding rounds, light behavioral, no system design. Clean working code and communication are the primary bar. Behavioral questions focus on teamwork and learning from mistakes.
• SDE II (L61-62): coding plus a design round (API or component level). Behavioral round becomes more substantive. Expected to show impact within your team and adjacent teams.
• SDE III / Senior (L63-64): full system design round with distributed systems depth. Behavioral bar rises significantly - cross-team influence, driving alignment on technical direction.
• Principal and above (L65+): design and behavioral dominate; coding is a check, not the bar. Expected to show organization-level technical judgment and strategic scope.

How to prepare

Microsoft prep should run three tracks in parallel: coding, design, and behavioral. Most candidates invest too little in behavioral, which has caused more declines at Microsoft than many candidates expect.

• Coding: practice mediums with a focus on clean, readable code and consistent narration. Microsoft problems often have a practical flavor - practice implementing data structures, graph problems, and string manipulation in addition to classic algorithms.
• Design (SDE II+): build a repeatable structure for API design and distributed system prompts. Practice making explicit trade-offs out loud. Focus on scenarios that feel like real product or service challenges, not just textbook examples.
• Behavioral: prepare 6-8 STAR stories that include at least two failure or setback stories with genuine learning. Read the Behavioral Questions guide for the themes that recur most across Microsoft loops. Microsoft values growth mindset - own your mistakes cleanly.
• Research the team: Microsoft is large and diverse. Understanding the product area, tech stack, and team mission before your loop helps you connect your experience to what the team actually needs - and the AA interviewer will notice.
• Practice collaborative coding: solve problems while narrating and responding to your practice partner's questions. Adapting your approach mid-problem when given a hint is a skill that requires deliberate practice.

For a broader view of how Microsoft's loop fits into the big-tech landscape, see the FAANG Interview Process guide.