The economy of Australia is a developed, modern market economy with a GDP of approximately $1 trillion USD. In 2009, it was the 13th largest national economy by nominal GDP and the 17th largest measured by PPP adjusted GDP, representing about 1.7% of the World economy. Australia was also ranked the 21st largest importer and 23rd largest exporter.

Australia is a member of the APEC, G20, OECD and WTO organizations. Australia has also entered into free trade agreements with ASEAN, Chile, New Zealand, Singapore, Thailand, and the United States. The ANZCERTA agreement with New Zealand has greatly increased integration with the New Zealand economy and there are now plans to form an Australasian Single Economic Market by 2015.

The Australian economy is dominated by its service sector, representing 68% of Australian GDP. The agricultural and mining sectors (10% of GDP combined) account for 57% of the nation's exports.

The Australian dollar is the currency of the Commonwealth of Australia and its territories, including Christmas Island, Cocos (Keeling) Islands, and Norfolk Island. It is also the official currency of the independent Pacific Island nations of Kiribati, Nauru and Tuvalu.

The Australian Securities Exchange is the largest stock exchange in Australia. Australia is home to some of the largest companies in the world including, BHP Billiton, Rio Tinto Group and News Corp.

Australia is a highly industrialized country with the unique status of the only country which is a "continent". Canberra is a capital city and Sydney, Adelaide, Brisbane and Melbourne are the leading industrial and commercial cities. The increasing focus on high-tech industries, Information Technology and Services Sector has helped to diversify the Australian economy. The predominant sector is service sector followed by agriculture and mining respectively. Economic reform measures taken place in the recent two decades helped Australia grow economically in many sectors. Japan, New Zealand, China, South Korea and Unites States are the major trading partners of Australia.

The service sectors such as education, tourism and financial services contribute largely to the employment development. Banking, hotel, education, financial services, transportation and shipping, legal and consulting services, etc. are the major service sectors providing Job opportunities in Australia. Manufacturing consumer goods, construction, retail, information technology, steel, petroleum, food processing, chemical industries, mining, iron and steel, textile and automobile are the other sectors generate large number of jobs in Australia.

The Yarra River, originally Birrarung, is a river in east-central Victoria, Australia. The lower stretches of the river is where the city of Melbourne was established in 1835 and today Greater Melbourne dominates and influences the landscape of its lower reaches. From its source in the Yarra Ranges, it flows 242 km west through the Yarra Valley which opens out into plains as it winds its way through Greater Melbourne before emptying into Hobsons Bay in northernmost Port Phillip.

The river was a major food source and meeting place for indigenous Australians from prehistoric times. Shortly after the arrival of European settlers land clearing forced the remaining Wurundjeri to neighbouring territories and away from the river. Originally called Birrarung by the Wurundjeri, the current name was mistranslated from another Wurundjeri term; Yarra Yarra.

The river was utilised primarily for agriculture by early European settlers. The landscape of the river has changed dramatically since 1835. The course has been progressively disrupted and the river widened in places. The first of many Crossings of the Yarra River to facilitate transport was built in Princes Bridge. Beginning with the Victorian gold rush it was extensively mined, creating the Pound Bend Tunnel in Warrandyte, and the Big and Little Peninsula Tunnels above Warburton . Widening and dams, like the Upper Yarra Reservoir have helped protect Melbourne from major flooding, The catchment's upper reaches are also affected by logging. Industrialisation ultimately led to the destruction of the marshlands at the confluence of the Yarra and Maribyrnong Rivers in the area around Coode Island in West Melbourne.

Today, the mouth and including Swanston and Appleton Docks are used for container shipping by the Port of Melbourne, the busiest on the continent. The city reach which is inaccessible to larger watercraft, has seen increased use for both transport and recreational boating (including kayaking, canoeing, rowing and swimming). In recent years however recreational use of the river is threatened by high levels of pollution in its lower stretches. The upper reaches remain relatively healthy.

The annual Moomba festival celebrates the Yarra River's increasing cultural significance to Melbourne.

Melbourne is one of the crowded city and is also known as the 'sporting and cultural capital' of this continent. The city is at the forefront of all commercial, industrial and cultural activities.

Manufacturing sector offers quite decent jobs in Melbourne since the city is home to much of Australia's automotive industry. Prominent automobile industries consist of Toyota and Ford manufacturing facilities and the engine manufacturing facility of Holden. Melbourne has an ICT industry that provides employment to professionals from all over the world. Jobs in Melbourne like teachers, professors, assistants etc are available in educational sector since there are many prominent universities in and around the city. Melbourne's financial services industry is commendable with two of the big four banks, NAB and ANZ, which are headquartered here. The tourism sector in Melbourne strongly supports the country's economy.

Perth's geographical location means that it is in the same time zone with many Asian countries, and is contactable with Europe during business hours, making it easier to communicate with major trading partners such as China, India, Japan, Singapore and the United Kingdom.
With rapidly-expanding international business partnerships, Western Australia supplies world class products and services locally and internationally, Jobs can be harder to get in Perth than in Sydney although mining-related jobs are usually easily obtained. All of the typical big city jobs are available in Perth although corporate and financial sector jobs are less common than in Sydney or Melbourne.

Western Australia has huge deposits of metal ores - iron, nickel, cobalt and zinc for example - and coal. It also exports billions of dollars worth of petroleum and petroleum products each year.

Booming Asian economies, particularly China, have sourced many of their raw materials from Western Australia, resulting in high economic growth for the state and its capital, Perth. Many large mining and mineral concerns have their headquarters in Perth. Mining itself is carried on outside Perth but the city is home to many support industries employing engineers and scientists.

There is a large oil refinery at Kwinana, 30 km south of Perth, with associated engineering and chemical manufacturing jobs.

Agriculture and tourism are also large players in the Perth region's economy. It is the foremost destination for entertainment, business, culture nightlife and the arts.

Perth has prospered due to its natural resource industries. Mineral reserves of iron, gold, ore, alumina, nickel, manganese, mineral sands, diamonds, coal, natural gas and oil are found in and around this city. As a result, most of the world's major resource and engineering companies have offices in Perth. The tourism sector and the educational sector are also reasonably well developed thus providing job opportunities in Perth. Perth is also known as a centre for media, arts, communications and transport center. It is the state's financial, commercial, and cultural hub. The construction sector too has started developing in this city.

The economy of Sydney is notable for its importance in the areas of trading, finance and distribution in Australia. Sydney has the largest economy in Australia.

Sydney's CBD is the largest in Australia and also has plenty of surrounding commercial areas which are considered part of Sydney. A notable one is Parramatta, which is bigger than some state capitals.

Sydney city extends over the harbour bridge, forming North Sydney, a continuation of the CBD. North Sydney has a large economy; however it tends to have a high vacancy rate. Just a few kilometres north of North Sydney, is Sydney's third largest commercial area[citation needed], Chatswood. Chatswood's main economy is retail and is home to many highrise buildings, with its own recognisable skyline. 20th Century Fox has large Sydney studios. Sydney is Australia's popular tourist destination since it has long stretches of beaches.

Sydney is a prosperous city in Australia and is known for the advent of corporates owing to the fact that many modern industries are making their presence felt in this city. Job opportunities are available mainly in sector like property services, retail, manufacturing, and health and community services. The service and IT sector have a dominant position in the economy of this city and provide employment to many qualified professionals.

Jobs are available in the finance sector, the largest service business in Sydney. Sydney is enjoying a significant growth in industries such as biotechnology, media and advanced manufacturing thus making this city a 'Beta' global city.

Tourism plays an important role in Sydney's economy since the city is the most preferred holiday destination for tourists from all over the world. Agriculture, mining and construction sectors are also reasonably developed in this city. Sydney is an ideal place for job hunters to seek employment.