Total employed in the US: 34,700 What they do, according to O*NET: Computer operators monitor electronic data processing equipment in several fields, including science, business, and engineering. Total employed in the US: 11,010 What they do, according to O*NET: Statistical assistants compile data to use in statistical formulas and studies, and put together charts and graphs.Total employed in the US: 630,700 What they do, according to O*NET: Computer-user support specialists provide customer support for computer users, which including answering questions, fixing computer problems, or giving advice on how best to solve an issue.Total employed in the US: 181,360 What they do, according to O*NET: Computer network support specialists test and troubleshoot network systems like LAN and WAN networks. They also perform network maintenance to make sure there are no internet outages.Total employed in the US: 33,200 What they do, according to O*NET: Commercial and industrial designers design products ranging from cars to home appliances to children's toys.Total employed in the US: 127,300 What they do, according to O*NET: Web developers design websites and make sure those sites are up to date, have creative graphics, and can support a large number of users at once. Total employed in the US: 366,250 What they do, according to O*NET: Network and computer-systems administrators install and configure LAN and WAN systems, and make sure the network is able to support several users at once. They may also monitor websites under the network to make sure they operate without any network interruptions. Total employed in the US: 32,430 What they do, according to O*NET: Postsecondary computer-science teachers teach college courses in computer science. If they have a specialty, like design or research, they may teach computer science courses in those fields as well.Total employed in the US: 104,200 What they do, according to O*NET: Operations research analysts apply mathematical modeling to develop decision-making, policy-making, or other managerial strategies. Total employed in the US: 230,470 What they do, according to O*NET: Computer programmers create, modify, and test computer code, and usually work from specifications made by software developers.Total employed in the US: 39,920 What they do, according to O*NET: Statisticians apply mathematical methods to collect data, and then interpret that data for use in agriculture, business, or economics.Total employed in the US: 587,970 What they do, according to O*NET: Computer systems analysts look at data to improve computer system performance. They also look at user requirements, system capabilities, and workflow to upgrade systems.Total employed in the US: 110,090 What they do, according to O*NET: Database administrators implement computer databases and coordinate changes to those databases.Total employed in the US: 381,380 What they do, according to O*NET: This position is made up of all the other computer workers who aren't in any main categories on this list.Total employed in the US: 186,490 What they do, according to O*NET: Electrical engineers research, design, and test electrical equipment for use in commercial, industrial, military, or scientific use.Total employed in the US: 108,060 What they do, according to O*NET: Information security analysts implement and monitor security measures to protect networks and confidential data. They may also respond to computer security breaches and viruses.Total employed in the US: 903,160 What they do, according to O*NET: Applications software developers create computer software and analyze users' needs to fix software issues. They may also supervise computer programmers to make sure the software works effectively.Total employed in the US: 152,670 What they do, according to O*NET: Computer network architects design computer information networks like LAN and WAN and other data communications networks.Total employed in the US: 405,330 What they do, according to O*NET: Systems software developers research, design, and test operating systems-level software, which is usually used in industries ranging from medicine to aerospace to business.Total employed in the US: 60,750 What they do, according to O*NET: Computer hardware engineers research and create computer equipment for a wide range of industries, and also supervise the manufacturing of equipment and components.Total employed in the US: 30,070 What they do, according to O*NET: Computer and information research scientists conduct research and come up with solutions to computer hardware and software problems.Total employed in the US: 391,430 What they do, according to O*NET: Computer and information systems managers plan and coordinate electronic data processing, information systems, and computer programming.