At this level the loop is calibrated for potential rather than track record: expect clean fundamentals, a coding round you narrate out loud, and behavioural questions about collaboration rather than leadership.
Engineering loops are the most structured of any discipline, and the most predictable. Expect a recruiter screen, one or two technical rounds, a system design conversation at mid-level and above, and a behavioural round that is usually underestimated.
The technical rounds are rarely won on the answer. They are won on narration — whether the interviewer can follow your reasoning while you work, and whether you say the trade-off out loud instead of silently picking one.
MockLive AI runs a spoken Software Engineer mock interview — behavioral, live coding, system design and technical deep-dive rounds — with an AI interviewer who asks questions like “Walk me through a project you built end to end. What did you own?”, follows up on what you actually say and scores you on a fixed rubric; the first 7-minute interview is free. How it compares with other AI interview tools →
Each round is run by the interviewer built for it, with its own scoring axes — not one generic interviewer asked to change subject.
A balanced round across experience and role-specific topics.
Scored on: Technical communication · Engineering depth · Ownership & collaboration
Past experience, STAR stories, collaboration, and conflict.
Scored on: Technical communication · Engineering depth · Ownership & collaboration
Solve a coding problem in the editor, out loud.
Scored on: Problem-solving communication · Engineering correctness · Adaptability & craft
How the live coding round works →Architecture, scale, data models, and trade-offs.
Scored on: Technical communication · Engineering depth · Ownership & collaboration
Drill into your resume projects and domain fundamentals.
Scored on: Problem-solving communication · Engineering correctness · Adaptability & craft
Six you can expect, in the register interviewers actually use. Answer them out loud before you read the next section — reading a question and answering one are different skills, and only the second is marked.
The gap between these two is most of your score, and it is easier to see than to be told.
“Tell me about a bug that took you far too long to find.”
Naming the bug and the fix. "There was a null pointer, I added a check." It answers the question and demonstrates nothing.
The hunt, in order: what you saw, what you assumed, the thing that disproved the assumption, and what you changed afterwards so it could not happen silently again. The debugging process is what is being assessed, not the defect.
The post-mortem nobody sends you. These are specific to this loop rather than general interview advice.
For Software Engineer roles, a general round runs with Kai — system design, trade-offs, and war stories from production. It is the fastest way to find out which round you actually need to work on. The first session is free.
Practise a Software Engineer interview →Before you practise, it is worth reading how the common rounds are marked: tell me about yourself, behavioural questions and STAR, and system design.
Questions like these: “Walk me through a project you built end to end. What did you own?” “Tell me about a bug that took you far too long to find.” “How would you store and look up ten million key-value pairs?” “When have you disagreed with a code review comment?” “What would you change about the last codebase you worked in?” “How do you decide when a piece of code is done?”
Expect General / Mixed (A balanced round across experience and role-specific topics), Behavioral (Past experience, STAR stories, collaboration, and conflict), Live Coding (Solve a coding problem in the editor, out loud), System Design (Architecture, scale, data models, and trade-offs) and Technical Deep-Dive (Drill into your resume projects and domain fundamentals). At this level the loop is calibrated for potential rather than track record: expect clean fundamentals, a coding round you narrate out loud, and behavioural questions about collaboration rather than leadership.
Silent coding. Working out the answer without narrating is scored as if you had no reasoning at all — the interviewer cannot mark what they cannot hear. Jumping to code before restating the problem or asking about constraints, then solving a different question from the one asked. Behavioural answers with no 'I' in them. At this level interviewers are calibrating for potential, and a candidate who only says 'we' gives them nothing to calibrate.
Out loud, with someone who follows up. MockLive AI's interviewer for this role asks these questions, pushes back on thin answers and scores you on a fixed rubric, with the transcript and every answer replayable. The first 7-minute interview is free and needs no card.