Meta Software Engineer Interview Guide

Initial technical screen: Meta describes a 45-minute conversation with a Meta engineer. It is primarily a coding interview, with 5 minutes for introductions, 35 minutes for coding, and 5 minutes for your questions.

If the conversation is not in person, the engineer sends a collaborative editing tool. In person, you use a whiteboard.

Full loop: The Software Engineer loop consists of a coding interview with general coding questions, a design interview, and a behavioral interview about your previous work experience and motivations. The design and behavioral interviews are each 45 minutes. The loop coding interview also follows a 45-minute format, including 35 minutes of coding.

Coding: Meta describes general coding questions. In Software Engineer interviews generally, prepare to apply data structures and algorithms while making correctness, code quality, and communication visible. State assumptions, explain your approach, and check your code against edge cases.

Design: As general Software Engineer practice, clarify requirements before proposing components. Explain data flow, interfaces, tradeoffs, failure cases, and how the design could change as constraints change.

Behavioral: Meta says this conversation covers previous work experience and motivations. Prepare concrete evidence of collaboration and ownership: what you were responsible for, how you worked through disagreement, what you decided, and what changed because of your work.

The Meta Software Engineer format combines coding, design, and discussion of previous work and motivation. Preparation therefore needs to cover more than solving coding exercises.

Interview labels and structures vary across employers. Treat screen, coding, system design, behavioral, and onsite as preparation categories, not as extra Meta round names. Compared with preparation for nonengineering roles, Software Engineer preparation generally requires you to produce working logic, explain technical tradeoffs, and discuss engineering decisions alongside collaboration and ownership.

Meta does not publish how long the process takes. The initial screen is 45 minutes with 35 minutes for coding. The design and behavioral interviews are each 45 minutes, and the loop coding interview uses a 45-minute format with 35 minutes of coding.

The challenge is the combination of time pressure, technical breadth, and communication. In general Software Engineer practice, aim for a solution you can explain and check, and keep design reasoning structured enough that another engineer can follow your choices.

• Rehearse the screen format: Practice a 35-minute coding block inside a 45-minute conversation, leaving room to establish context and ask focused questions.
• Build coding fluency: Review data structures and algorithms, then solve problems aloud. Write readable code, test edge cases, and explain time and space tradeoffs.
• Structure design answers: Begin with requirements and constraints, then cover components, data flow, interfaces, bottlenecks, and tradeoffs.
• Prepare evidence from your work: Choose examples that show collaboration, ownership, decision-making, conflict resolution, and motivation. Be precise about your individual contribution.
• Practice both working surfaces: Become comfortable coding in a collaborative editor and on a whiteboard so the medium does not interrupt your reasoning.
• Combine the skills: Run practice sessions that move through coding, design, and behavioral discussion while keeping your explanations clear and concise.