EMPLOYMENT APPLICATION Please fill out the form below for all job listings. The Borough of Middlesex is an Equal Opportunity Employer.By signing in or creating an account, some fields will auto-populate with your information. Middlesex County Employment Application. Position(s) applying for. We are dedicated to helping the people who utilize our services. EMPLOYMENT APPLICATION Please print and fill out the form below for all job listings. Welcome to Middlesex Borough School District! To establish a complete pre-employment file, please complete the online application. To complete the online application, use the 'Start an application for employment' link available on this site.