A Queensland mother of four says she feels "sick and disgusted" after receiving a couple of suspicious job offerings just hours after posting on Gumtree.

Sunshine Coast woman Jasmine Radovic, 22, posted an ad looking for "any jobs" on the classifieds and community website on Thursday afternoon, and received her first call within hours.

A man, who claimed to be a lawyer running his own business, rang from a private number.

Jasmine Radovic took to Gumtree to look for work this week. ( Supplied: Jasmine Radovic )

He said he was looking for an "all-rounder" to take on tasks such as delivering mail, answering phones and running errands.

The man said Ms Radovic needed no qualifications, and told her the job paid $2,000 a week and came with a company car, a fuel card, and a mobile phone.

"I've got five girls who are jumping at it at the moment, willing to do anything to get this job over anyone else," the man said.

Ms Radovic, who recorded the conversation, said it sounded like a legitimate opportunity up until the final minutes of the call:

Man: So it's up for grabs, it's entirely up to you. I need to make a decision tonight. Ms Radovic: Yep. Man: I'll be ringing one of these girls back, letting you know who is the lucky one. So I need to know from you what do you want to do? Ms Radovic: Well I'd love the job. Man: Sorry? Ms Radovic: I would love to have the job. Man: You'd love to have the job, yeah. And what are you sort of wanting to do to beat these other girls off getting it? How can you convince me that you're really… Ms Radovic: Well I can start immediately. Man: So can they [laughs]. So yeah, it's just depending on what you can offer as well, you know what I mean from your part. Ms Radovic: Well, what have they offered? Man: Pardon? Ms Radovic: I said what have they offered? Man: I mean like I said before, whatever we discuss is strictly confidential and we basically keep it like that. Ms Radovic: Oh, OK. Man: So yeah. Ms Radovic: Well I'm not sure if there's anything else that I can offer at all other than I can start immediately and that I'd be a good worker and I'll do everything I can … like in the workplace and everything, to your standards. Man: Alright. OK, you can just leave it with me and I'll be making a decision tonight. Ms Radovic: OK then, that sounds good. Man: Thank you. Ms Radovic: Thanks, bye. Man: Bye.

Ms Radovic said she believed the man was looking for sexual favours, and the job did not exist.

"I spoke about it with my partner and his mother … they believe as well, full blown, that he was asking me to offer him sexual favours for the job. So they were both disgusted with it," she said.

Ms Radovic's posting to Gumtree. ( Supplied: Jasmine Radovic )

On Friday, Ms Radovic received a second call for a job, this time via Skype.

This time it was a man claiming to be opening a bar and nightclub in her neighbourhood in the coming weeks.

"He told me he's in Melbourne and why he has to do Skype only. He told me he wanted very good looking, young, outgoing girls for his nightclub business," she said.

"He wanted me to Skype with him so he could see what I looked like, to see what I wear.

"He asked me what kind of clothes I wear. He told me he wants me to put on some makeup, put a nice dress on and get on the Skype call.

"So that call ended very quickly."

She said she wanted other women looking for work online through websites such as Gumtree to be cautious.

"After the second call I'm disgusted, I feel sick," Ms Radovic said

"Having guys pretty much push sexual things like that, or act like it's sexual towards me and make me feel like it's a sexual thing, make me feel dirty and sick. So it is sad.

"It's hard, and I don't want anyone else going through this."

'If it's too good to be true it probably is'

Queensland University of Technology's Dr Alan McAlpine, who specialises in careers and employment, said when looking for work online, the old adage "if it's too good to be true, it probably is" was key.

He said legitimate employers would not ask potential employees questions such as "what are you going to give me" to get hired.

Safety tips Double check the validity of the ABN and relevant licences. Go to ABN Lookup to verify an ABN

Double check the validity of the ABN and relevant licences. Go to ABN Lookup to verify an ABN Meet your prospective employer face to face, ideally at the business within working hours, or in a public place

Meet your prospective employer face to face, ideally at the business within working hours, or in a public place Be wary of anyone who asks inappropriate questions or gives vague answers

Be wary of anyone who asks inappropriate questions or gives vague answers You shouldn't have to provide your bank or identification details when applying for a job (this should only be once you've accepted an offer of employment)

You shouldn't have to provide your bank or identification details when applying for a job (this should only be once you've accepted an offer of employment) Avoid 'work from home' jobs which aren't from well-known organisations

Avoid 'work from home' jobs which aren't from well-known organisations Avoid listings which guarantee wealth, financial success or which will help you get rich quick Source: Gumtree

Dr McAlpine said anyone in a similar situation and questioning the validity of a potential employer should seek out as much information as possible.

"I'd be asking for information like a website and a position description," he said.

"A really good rule of thumb is if it's too good to be true, generally it will be too good to be true.

"Be wary of what's being presented to you and asking you some information that gives you an opportunity to see who the employer is."

Dr McAlpine said he recommended other avenues outside Gumtree when looking for work.

"We'd often recommend people looking for work that they network physically, so starting to look through family and friends, and other contacts, just putting out there that they're looking for opportunities and willing to to talk to people and introduce themselves," he said.

"Because people like to get to know people and like to employ people they at least have a level of trust in, and meeting someone often gives a future employer that confidence and level of trust."