Assistant Shift Supervisor

Marvin Composites is hiring an Assistant Shift Supervisor at our Salem, VA plant. We’re looking for a proactive leader with manufacturing experience who is comfortable working around equipment. You’ll support our production team and shift supervisors to keep operations running smoothly. This role focuses on developing people, building a strong team culture, and making sure we deliver safe high‑quality work every day.

6:30 AM – 6:45 PM

• Week 1 (36 hrs):
  Sun, Wed, Thu
• Week 2 (48 hrs):
  Mon, Tue, Fri, Sat

Enjoy a 3‑day weekend every other week! Work just 7 out of every 14 days, giving you more time for family, hobbies, or rest.

Base rate $26‑35/hr.

• + $4.00/hr weekend premium

Effective wage potential (base + weekend premium + OT): $29‑39/hr pay based on experience.

• Support the development of a positive team culture aligned with company values
• Promote a safe work environment and reinforce strong safety habits across the shift
• Coach, train, and mentor your direct reports while encouraging skill growth and self‑sufficiency
• Help lead continuous improvements by supporting SOP updates, post‑crash reviews, and practical process improvements
• Partner with the Shift Supervisor to keep the shift running smoothly and maintain a productive and team‑focused environment

• 3+ years of manufacturing experience preferred
• Technical degree preferred
• Ability to identify root causes and recommend practical solutions
• Experience leading others preferred

Marvin Composites produces custom fiberglass components used in many of the premium windows and doors manufactured by Marvin, a family‑owned and‑led company. Marvin Composites currently has fiberglass production facilities in Fargo, North Dakota and Salem, Virginia. Our 300+ associates enjoy a better living approach to benefits, which support you at work and beyond. From day one you receive health insurance, paid holidays, paid parental leave, a 401(k) retirement savings match and more!

• $300 annual wellbeing account to spend on whatever makes you happy + healthy
• Better Living Day! (a paid day off to go have some fun)
• Annual profit sharing – get rewarded for the role everyone plays in making Marvin a success
• Giving at Marvin – join coordinated volunteer opportunities
• Brighter Days Fund – financial support thanks to your colleagues and the Marvin family should you suffer a personal hardship

Marvin is committed to creating an inclusive environment for all employees and applicants. Employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected status under applicable laws. Applicants requiring reasonable accommodation for any part of the application and hiring process may contact us at