It fades, but usually not by you becoming confident — it fades by the comparison becoming less interesting to you. And the specific distortion driving it is worth naming: you're comparing your inside experience (every doubt, every gap, every thing you googled) to everyone else's outside performance (their finished sentences in a meeting). That comparison is structurally unfair and will always produce the same verdict.
What's actually true in most engineering teams:
- The people who sound authoritative are speaking about their specialism. You're hearing each person's strongest area, back to back, and unconsciously assembling one impossible composite colleague who knows all of it. Nobody in the room is that person.
- Almost everyone is googling constantly. Senior developers look up syntax they've used for a decade. The visible confidence is about process, not recall.
- Several of the people you're intimidated by feel the same way. Imposter syndrome is extremely common among competent people; it's approximately absent in the genuinely incompetent, which is a darkly reassuring pattern.
What actually helps, beyond reassurance:
1. Keep a written record of what you've done. A running file of problems solved, bugs fixed, things learned. Imposter syndrome is a memory problem as much as a confidence one — you genuinely forget your own progress. Reading last quarter's entries is more convincing than anything anyone tells you.
2. Ask questions openly. The instinct is to hide gaps, which prevents the learning that would close them, and it's also how the fear sustains itself. Asking a clear question reads as engaged, not weak — and you'll notice senior people asking basic questions constantly, because they stopped associating not-knowing with inadequacy.
3. Compare to your own past self, on a monthly scale. Against colleagues with eight years more experience you'll lose forever, which is arithmetic, not judgement.
4. Say it out loud to one trusted colleague. The near-universal response is 'oh, me too', and that single conversation deflates a lot of it.
5. Separate feeling from evidence. You were hired by people whose job is assessing this. If your work is landing and your reviews are fine, the feeling is a bad narrator, not data.
The long view: the field is genuinely enormous and permanently changing, so the sensation of not knowing enough is a permanent feature of the job rather than a phase you pass through. Experienced developers still feel out of their depth regularly — they've just stopped concluding that it means they don't belong. That reinterpretation is the actual endpoint, and it's reachable a lot sooner than 'knowing everything'.