Engineering Jobs

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Fixed-Price - Intermediate ($$) - Est. Budget: $40 - Posted
This task involves writing 2 articles (350 words each) on engineering machines. One of them describes "heating-treating oven" and the other is on "pre-treatment plant". ... These articles/descriptions are to be placed in the website of an engineering company. Formal writing style is preferred.
Skills: Content Writing SEO Writing Technical writing
Hourly - Intermediate ($$) - Est. Time: Less than 1 week, 30+ hrs/week - Posted
This is an exciting chance to help a product that has a real shot of improving a space that has become outdated over decades. We hope you can help make this product a reality for everyone who takes pride in their inner city commute, but want to do so in a more stylish and portable way. We need help finding out where traffic originated from some top Kickstarter campaigns. These campaigns are of products that indirectly and directly compete with our product. The purpose of this research is to understand where they get traffic and how they got traffic. The desired outcome will allow us to know which channels to approach, how to approach them, and gain access to more backers to fund our campaign who have an interest in what we offer. Those who we're looking for understand how to find how traffic arrived to a page, discover the source that it came from, the approximate amount of people that came from that source, and what convinced them to come from that source.
Skills: Reverse engineering Advertising Brand Management Brand Marketing
Hourly - Expert ($$$) - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
I am looking to design a pcb that can be used to solder a class D amplifier, an fm radio chip, and an arduino nano chip all on one border with as minimal traces as possible to reduce interference. I have parts that I have used to breadboard this together, but there is a lot of interference that I believe to be due to the cheap and lengthy hookup wire I am using. Here are the parts: Class D amp: https://www.adafruit.com/products/1752 Arduino nano: http://www.digikey.com/product-detail/en/1501/1528-1021-ND/4990770 Fm radio chip: http://www.ebay.com/itm/RDA5802E-FM-Stereo-Low-IF-Digital-Radio-Module-Fo-MP3-MP4-Player-Replace-RDA5807-/331667174047 I'm open to using other parts if the candidate feels there are advantages to others. However, the requirements are that this is as high fidelity as possible, with as little interference as possible, as well as being as low power as possible. I know other classes of amps are better sounding, but class D should be sufficient and to my understanding it is the most power efficient amp. Also, the final design will support audio input from either the fm radio or from aux input jack. The fm radio chip above has an 1/8" jack, however, I'm open to using an smd part that is soldered right in as an audio cord from the amp to the radio could be a possible source of interference. The ideal candidate will have direct experience with audio amps, circuit design, rf interference abatement and wireless broadcast audio transmission. This is the first stage of a large project, so there is room for more work if the project is completed successfully.
Skills: Broadcast Engineering Electrical engineering