A LabWindows developer designs, develops, and tests software applications using the LabWindows/CVI programming environment. They use this ANSI C integrated development environment for test and control applications to automate tasks, analyze data, and develop user interfaces. Their responsibilities include writing and debugging code, creating user interfaces, integrating hardware, and managing data. They work on applications for industries like medical, automotive, telecommunications, and aerospace. They also troubleshoot and resolve issues, ensuring the software's reliability and efficiency. Additionally, they may provide technical support and work closely with other software developers and engineers.