An offer that does not require an interview is a massive red flag.

Not if it’s based on known job history, personal connection, or other factors that make a candidate known to the one offering. Interviews are typically a means of getting to know a candidate. If you already know them, there’s no need for interviews. I personally know quite a few devs I’d call up to chat about a job/project and give an immediate offer to if they were interested.

Admittedly, in the context of recruiters, it could be different, but doesn’t have to be. Personal relationships are a strong signal for many people.

It isn't if you know the person hiring you and they know you.

Even then, I would expect to have a at-least a small chat for both of us to understand how each other's plans can fit in before accepting an offer.

That's a completely different situation though.

Red flag warning of what?

I've never heard of a job without an interview.

A red flag regarding the nature of the company. No interview shows lack of diligence. If there is no diligence about who they let in, what else are they not diligent about?

It also depends. The way I look at it is the really good companies know people will seek them out. So to get really good jobs you have to seek them out. I've never really gotten an offer from a good company from a recruiter approaching me.

The really popular companies have people seek them out.

How tightly that correlates to "good" is pretty debatable.

I agree.. it's not at efficient way of going about finding a job. But it is effective, if the goal is to get a job. And at the end of the day, he has a job.

As Drucker used to say.. "focus first on being effective, then on being efficient"

> one offer didn't even require an interview

How does that work? Did they already know about you and/or have direct evidence of your work?

He lives in a world most of us have never heard of and talks like like that is normal.

May I ask for your no. of years of experience ? Also, would you kindly direct me to your LinkedIn profile? Would love to see how you did it ? Would you kindly suggest some Ljnkedin job hunting techniques?

There is no "technique" for LinkedIn job hunting that I know of, other than keeping your profile complete and up to date. Me personally, I'm a specialist with 11 years of experience, mostly in Java programmming and SOA architectures. There is a lot of demand for such specialists in my country, so I get contacted by recruiters quite often.

Regarding the offer that required no interview - turned out hiring manager and me had some mutual friends, so he just reached out to one of them to get an opinion about me.

For the other offer I had an interview, but it was very short - I think my resume speaks for itself, so it was more like loose talk about my previous projects than real evaluation of my technical knowledge.

May I ask for your country name?