Join a Proven Plastics Team
Proto Plastics in Tipp City, Ohio has delivered high-quality custom injection molding for 50+ years. We never stop improving—and we’re looking for a process-savvy supervisor who leads people and processes with equal skill.
Why This Role Matters
- Uplift team performance through clear guidance and real-time coaching.
- Optimize scientific molding parameters to hit quality and cycle-time targets.
- Translate production data in IQMS into action on the floor.
- Close the loop on customer feedback with cross-functional partners.
What You’ll Do
- Lead by example; supervise operators, material handlers, mold set-up technicians, and process technicians.
- Own complex molding technology: 3-axis robotics; 2- and 3-stage injection profiles; horizontal presses with multiple core pulls/multi-cavity tooling; hot runner systems (hot drop, valve gate); material handling (color feeders, hoppers, Gaylord tippers, dryers); auxiliary equipment (thermolators, chillers, hot runner controls).
- Embed Lean Management principles; drive waste reduction and throughput gains.
- Capture insights from daily production and take them to the core team to resolve issues.
- Recruit, interview, train, counsel, and motivate team members; support corrective action when needed.
- Deliver structured training across roles to upskill the workforce.
- Identify missing or weak processes and implement durable fixes.
- Collaborate daily with Quality, CSR’s, Tooling, Processing, Engineering, and Maintenance to prevent recurrence of issues.
- Use IQMS MRP to manage jobs, materials, and priorities.
- Flex to assist wherever the operation needs you.
What You Bring
- Manufacturing know-how across equipment, processes, systems, and tools.
- Comfort with MRP (IQMS preferred) and data-based decisions.
- Structured troubleshooting, problem-solving, and decision-making.
- Lean manufacturing mindset with continuous improvement experience.
- Ability to follow written/oral/scheduled instructions and turn them into results.
- Experience with process capability studies; strong grasp of scientific molding.
- Ability to develop and document molding processes for new launches.
- Analytical approach—use data to isolate root causes and verify solutions.
- Leadership skills: interview, train, assign, direct, coach, and motivate.
- Read/interpret SOPs, safety rules, maintenance instructions, and procedures.
- Basic HR knowledge appropriate for a people leader.
- Clear written and verbal communication.
- Applied math (ratios, percentages, discounts, area, circumference, volume) plus basic algebra/geometry.
- Team orientation with a bias for accountability and results.
- Time management—prioritize, schedule, and multi-task effectively.
- Software familiarity: database, internet, inventory tools, and MS Office.
- Reliability, self-direction, and minimal-supervision effectiveness.
- Adaptability in a fast-changing production environment.
- Safety and security awareness at all times.
- Professional demeanor; positive, optimistic leadership style.
Experience Profile
- 3+ years of supervisory experience in manufacturing.
- 3+ years working with injection molding processes, equipment, and materials (or equivalent training).
- Experience in Lean Manufacturing and multi-product operations.
Physical Requirements
- Extended periods at a computer workstation.
- Frequent reaching, typing, and mousing.
- Ability to stand, walk, kneel, stoop, crouch, or crawl as operations require.
- Reach and handle parts and tooling.
- Lift/move up to 30 lbs.
- Vision: close, distance, color, peripheral, depth perception.
Core Proficiencies
- Injection molding expertise.
- Injection mold set-up and processing proficiency.
Accommodation Notices (Verbatim)
**Essential Job Functions:
The requirements listed below are representative of the knowledge, skill and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
**Required Qualifications:
To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
**Physical Demands:
The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.