Kreyco is seeking a qualified, passionate, and dedicated teacher for an on-site high school Environmental/Biomedical Science teaching opportunity for the 2026–2027 school year. The role involves teaching science to students in grades 9–12. Substitutes are encouraged to apply, and applicants may have teaching certification or be without certification; Kreyco assists teachers in obtaining certification while they teach. Kreyco provides a comprehensive curriculum, coaching and mentorship, and professional development at no cost. Compensation varies by teaching project and ranges from $400 to $1,100 per week. The payment structure includes holidays and school breaks. This is a 1099 independent contractor position, with weekday daytime teaching hours and no night or weekend classes.