Operations & Manufacturing Manager

Location: Roseville, CA (On-Site)

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About Sinister Diesel

Sinister Diesel is a leading manufacturer of high-performance aftermarket diesel components, known for premium quality, innovation, and strong customer satisfaction. Our products are designed, manufactured, and distributed from our facility in Roseville, CA.

We operate in a fast-paced, growth-focused environment where efficiency, accountability, and continuous improvement are core to how we scale.

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Role Overview

We are seeking an Operations & Manufacturing Manager to take ownership of our production floor and drive operational performance.

This is a hands-on leadership role responsible for improving throughput, building structure, and ensuring production consistently meets demand. The right candidate will not just manage operations, but actively improve them.

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Key Responsibilities

• Oversee daily manufacturing operations, including scheduling, workflow, and staffing

• Manage production planning to align output with demand and minimize delays

• Identify inefficiencies and implement process improvements to increase throughput

• Develop and refine standard operating procedures (SOPs) across production processes

• Lead and develop production teams, ensuring accountability and performance

• Maintain and improve quality control standards

• Coordinate with purchasing and inventory to ensure proper material flow and availability

• Track and report on key metrics such as output, efficiency, and downtime

• Maintain a clean, organized, and safety-compliant work environment

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Qualifications

• Proven experience managing or significantly improving manufacturing operations

• Strong background in production planning, workflow optimization, and process improvement

• Hands-on leadership style with the ability to drive performance on the floor

• Experience building structure in growing or evolving environments

• Solid understanding of quality control and manufacturing best practices

• Strong problem-solving skills with a results-driven approach

• Experience with ERP systems (NetSuite preferred) and production tracking tools

• Highly organized with strong attention to detail

• Effective communication and leadership skills

Preferred:

• Experience in automotive, machining, fabrication, or similar manufacturing environments

• Familiarity with CNC machining, fabrication, or assembly operations

• Degree in Operations Management, Industrial Engineering, or related field

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Compensation

$120,000 – $140,000 DOE + performance-based incentives

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Why This Role

• High level of ownership and direct impact on company performance

• Opportunity to improve systems and drive operational efficiency

• Work closely with leadership on scaling production

• Long-term growth potential within a growing company