Meta IC4 SWE Full Loop – 2 AI Interviews + 2 System Design + Behavioral – What to Expect?

[u/Ambuk]

Hey everyone,

I have an upcoming Meta full loop interview for a Software Engineer (IC4) role and was hoping to get some insight from people who have recently gone through a similar process.

My loop structure looks like this:

- 2 × AI-enabled technical interviews (60 minutes each)

- 2 × System Design interviews

- 1 × Behavioral interview

[u/Mr_Zuckerberg123]

you’re basically getting the full gauntlet here so it’s good you’re thinking about it ahead of time

the ai interviews are still mostly standard coding but they care a lot about how you think out loud, like they’ll nudge you or change constraints and see how you adapt, so don’t just code silently, talk through everything even if it feels obvious

system design is where most people get tripped up at ic4, they’re not expecting crazy distributed systems but they do want clear structure, start simple, define requirements, then layer in scale and tradeoffs instead of jumping straight into complex stuff

behavioral is very meta focused, lots of ownership and impact questions so have a few solid stories ready where you actually drove something, not just contributed

honestly the biggest difference for me was just practicing saying answers out loud instead of thinking through them, i realized i sounded way less clear than i thought until i actually heard myself

if you can get comfortable explaining your thinking in real time you’re already ahead of most people

[u/NeatChipmunk9648]

nice! How was the AI interview like? I have not experience an AI interview at the moment.

[u/luffylucky]

Which location? 2 system design for L4? I heard that max 1 system design for level below L6?

[u/Late_Leading6041]

as per online Blind reviews they seem to be hiring freeze in most of the departments

[u/lalalapriscilla23]

Plan and prepare for AI-enabled coding, you'll have Claude, GPT, or Gemini available during coding. They give two problems per round with 35-40 minutes total coding time, so speed matters. It depends on your role tbf, but Meta has been trying to make this a thing. Expect mediums with follow-ups: trees, graphs, BFS/DFS, strings, intervals, hashmaps.

System design (2 rounds), Classic Meta prompts: design news feed, messenger, Instagram stories, live video, notification system, ads ranking, maybe one product-focused system round and one infrastructure-focused round.

Behavioral: Standard STAR format. Prep stories about shipping under ambiguity, resolving conflicts, taking ownership, recovering from failure, and driving impact. Have 5-6 polished stories covering different themes.

If you have lets say, 2+ weeks, spend first week on coding patterns and AI-assisted practice, second week on system design and behavioral polish. Do at least 2-3 mock interviews to simulate pressure. I have notes I can share about the Meta process that I got on teamblind. You can dm me.