Generally the Riviera is a place people come to spend money rather than earn it. Unemployment levels are high, casual work hard to come by, and as everywhere, service industry jobs tend to go to those with low wage expectations.
Sophia Antipolis is a huge office/science/tech park 20 minutes outside of Nice, which is the base for many French and multinational companies.
For those with the right qualifications and experience the luxury superyachts of Antibes International Yacht Club have spawned a major industry in crew and boat services which attracts many young English speakers. Connections are equally important as the boats often post signs to deter casual enquiries - "no day-workers required"
Financial service companies abound in Monaco which is readily commutable from Nice.
If you are seeking a career aboard one of the many superyachts in Nice a good place to register and start looking is Crew Central (http://www.crew-central.com)
There are many schools offering courses in French. Perhaps the most reputable are Alliance Française (http://www.alliance-franc...) and EF.
beaches
If you go to Nice for bathing or general lounging on the beach, you may wish to think again. The beaches of Nice consist entirely of large flat stones "gallets". A few private beaches have added a layer of sand, but the free public beaches are a stony experience. Besides towels or mats, you should definitely bring sandals as walking on the stones can be painful, and a cushion, if you want to sit. Showers are provided for free on all public beaches and there is a beach volleyball area that is netted off with white sand.
Although the beaches are mainly pebbles it is important to note that many visitors enjoy the beautiful light blue sea for a swim. If you can bear to walk for few steps on the pebbles it is definitely an opportunity for swimming rather than playing in the water as the beach drops quickly and the tidal pull can be very strong, and not for beginners. Lying on the beach for a sun tan or relaxation is also manageable as long as you rearrange the rocks/pebbles to a comfy surface for sitting and lying. Private beaches offer various services from restaurants/bars to the rental of lounge chairs and towels.
Much nicer beaches exist in other towns close by, such as Villefranche-sur-Mer, Antibes and Cannes, which are far more sandy. Villefranche is a particularly preferred beach choice, especially if travelling with children, only twenty minutes away by the TAM 100 bus.
Guided tours
Open-top Bus Tours
A number of different companies offer open-top bus tours of nice. these are of the "hop-on, hop-off" variety, where you can get on and off at various points of interest around the city. they are pretty good value for money, and almost all offer audio commentary in a variety of major languages. they are a great way to see the city and learn about its history.
Nice Cycle Tours
(http://www.nicecycletours.com/) — discover nice by bike. a guided bicycle tour which covers nice's architectural, historical and cultural landmarks with the best places to eat and drink thrown in. each tour lasts approximately 3 hours. bicycle, cycle helmet and a cool drink included.