After registering for an account on our site, you may apply for jobs. Click the "Apply" button on the posting to get started.Application requirements are provided in the FAQ section of the HR page. Hiring Manager Review. ___ On-Line Application Signature Page – All employees must complete an on-line Collin County. Employment Eligibility Verification Form (I-9). On-Line Application Signature Page – All employees must complete an on-line Collin County. Your application must include relevant experience and education, and you must complete any supplemental questions if required. As an interdisciplinary program, anyone with an interest in Earth science is welcome to apply. DEVELOP accepts participants with skills in a variety of fields.