Business Development Manager at Interstate Plastics – Hayward, California

Come build the future with us. Interstate Advanced Materials is seeking a full-time Business Development Manager at our Hayward, CA facility. At Interstate Advanced Materials, we support the professional growth of our employees while providing exceptional service to our customers. We are a wholesale distributor and fabricator of high-performance plastic sheet, rod, tube, and film serving industries such as aerospace, defense, semiconductor, medical, food processing, automotive, agriculture, and more.

Headquartered in Sacramento, CA, our family-owned company employs over 170 team members across seven states. As an environmentally sustainable and award-winning organization, we are committed to solving customer challenges through innovation, dedication, and collaboration. If you’re passionate about doing your best work at a company that values your contributions, we want to hear from you.

Position Overview:
We’re looking for a Business Development Manager (BDM) who thrives on hunting down new opportunities and building lasting relationships. In this role, you’ll spend about 80–90% of your time focused on new business development, with the rest dedicated to growing and expanding existing accounts.

If you’re experienced in industrial or plastics sales, have a self-starter mindset, and are ready for more—more income, more responsibility, more freedom, and more fun—we want to hear from you. Tell us why you’re the one we can’t afford to miss.

Key Responsibilities:
Drive new business by prospecting and landing new accounts
Expand existing accounts through trusted relationship-building
Manage customer projects from kickoff to completion
Sell high-performance plastic solutions, including sheet, rod, tube, and machined parts
Focus on development, not just maintenance—we want growth!

Requirements:
Industrial or plastics sales experience with results to back it up
Willingness to travel and stay overnight as needed to maximize your route
A technical mindset—you’re comfortable talking shop with engineers and manufacturers
Drive, independence, and a hunger to win