The six-month jobs, which include "Outback Adventurer" and "Chief Funster", attracted initial interest from more than 330,000 people from nearly 200 countries before applications closed late on Wednesday.
Applicants were asked to submit a 30-second video explaining why they would be good for the jobs, which come with a stipend of A$100,000 ($105,400).
Among the entries received were a woman snorkeling in stop-motion animation, and a man having a pillow fight with New Yorkers and dancing in his underwear in the subway.
"Getting lost has helped me find who I am. I have encountered all the best parts when I am lost on different journeys," said one woman, who was applying for the job of "Lifestyle Photographer". "Where will I get lost next?"
The campaign was based on a 2009 initiative by authorities in Queensland state seeking an "island caretaker" on the world-famous great Barrier Reef. That campaign attracted almost 35,000 entries and was won by Briton Ben Southall.
The "Chief Funster" will have VIP access to exclusive Sydney parties and festivals, while the Northern Territory's "Outback Adventurer" will get a taste of Australian bush life.
The 18 finalists will be flown to Australia for interviews, with the six winners announced on June 21. Americans topped the list of applicants, followed by Britons.
Queensland's 2009 campaign sparked similar campaigns around the world. Recently, the Chinese city of Hangzhou launched a Facebook campaign to find a "Modern Day Marco Polo".
Since winning the Queensland competition, Southall has married an Australian woman and now lives in the state capital Brisbane, where he works for the Queensland tourism board.
全球各地已经有4万多人申请了澳大利亚的六个“世界最好工作”，澳大利亚旅游局官员不得不担起把名单削减到18名最终入围者的繁重任务。
这些为期六个月的“最好工作”包括“内陆探险者”和“玩乐达人”，到周三晚间申请截止时，已经有近200个国家的33万多人表示感兴趣。
申请人须提交一段时长30秒的视频，解释自己为什么适合这一工作。该工作的薪水高达10万澳元（合10.54万美元）。
收到的参选视频中，有一个视频是一名女子用通气管在定格动画中“潜泳”，还有一个视频是一名男子和纽约人掀起枕头大战，并穿着内衣裤在地铁里跳舞。
一名申请“生活方式摄影师”职位的女性说：“迷路帮助我认识我自己。当我在不同旅途中迷路时，我遇到了生命中最好的部分。接下来我将在哪里迷路呢？”
这一活动基于昆士兰州当局2009年的一项提议——为世界闻名的大堡礁寻找一位“守岛人”。该活动在当时吸引了近3.5万申请人，最终英国人本•绍索尔胜出。
“玩乐达人”将享有参加专属悉尼派对和节日庆祝会的VIP特权，而北领地的“内陆探险者”则能亲身感受澳洲丛林生活。
18名入围者将乘飞机前往澳大利亚接受面试，最终的六名获胜者名单将于6月21日公布。提交申请的美国人最多，其次是英国人。
昆士兰州2009年的活动在世界各地引发了类似的活动。前不久，中国杭州市发起了一个寻找“现代马可•波罗”的Facebook活动。
自从在昆士兰最佳工作竞聘中获胜后，绍索尔如今已经和一位澳洲女子结了婚，现在住在昆士兰州首府布里斯班，在昆士兰旅游局工作。
