By signing in or creating an account, some fields will auto-populate with your information. Middlesex County Employment Application.Build your career and your community – apply for a position with Middlesex County today. Click here to find new career opportunities. It includes personal information, work history, education, skills, and qualifications, as well as specific prompts to evaluate their suitability for the job. We are dedicated to helping the people who utilize our services. It means you have to fill out an employment application. It's standard procedure. The person who filled out this application must sign this application.