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Manufacturing Operations Manager Jobs in California

Oath

Senior Manager, Manufacturing Operations

Vacaville, CA · Hybrid

$140K - $160K/yr

The Senior Manager, Manufacturing Operations will help build and operationalize the systems, processes, and standards required to scale Oath's manufacturing activities. This role will work internally ...

Vast

Manufacturing Operations Analyst

Long Beach, CA · On-site

Vast is looking for a(n) Manufacturing Operations Analyst , reporting to the Manager of Manufacturing Operations, to support the development of the systems that will be required for the design and ...

Flex

Operations Manager

Milpitas, CA · On-site

Flex is the diversified manufacturing partner of choice that helps market-leading brands design ... The Operations Manager will lead day-to-day manufacturing operations across multiple production ...

Flex Ltd.

Operations Manager

Milpitas, CA · On-site

Flex is the diversified manufacturing partner of choice that helps market-leading brands design ... The Operations Manager will lead day-to-day manufacturing operations across multiple production ...

Novanta

Director of Manufacturing Operations

Irvine, CA · On-site

$178K - $240K/yr

Summary The Director of Manufacturing Operations provides strategic and handson leadership for all ... Ensure reliable production planning and capacity management , aligning labor, equipment, and ...

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How much do manufacturing operations manager jobs pay per year?

As of Sep 14, 2026, the average yearly pay for manufacturing operations manager in California is $100,958.00, according to ZipRecruiter salary data. Most workers in this role earn between $77,500.00 and $126,800.00 per year, depending on experience, location, and employer.

What does a manufacturing operations manager do?

As a manufacturing operations manager, your job is to oversee the production of products at a manufacturing facility. In this role, you manage the repair schedule for machinery and ensure that all employees follow safety guidelines. You also keep tabs on inventory levels to ensure production can continue with few or no interruptions. This is primarily a management position, but because you may need to train new hires, familiarity with all manufacturing equipment and processes at your facility is helpful for this role. Manufacturing operations managers often help set work schedules, review financial statements, coordinate with other managerial staff, and provide strategic input for executives.

What does a manufacturing operations manager do?

A Manufacturing Operations Manager oversees the day-to-day production processes within a manufacturing facility. They are responsible for ensuring that production runs efficiently, safely, and meets quality standards. Their role often involves coordinating staff, managing budgets, optimizing workflows, and implementing process improvements. Additionally, they work closely with other departments to ensure that production goals align with overall company objectives.

What are some common challenges faced by manufacturing operations managers, and how can they be addressed?

Manufacturing Operations Managers often face challenges such as balancing production efficiency with quality control, managing diverse teams, and adapting to changing customer demands or supply chain disruptions. To address these challenges, effective communication and proactive planning are essential, as is fostering a culture of continuous improvement. Leveraging technology and data analytics can also help identify bottlenecks and optimize processes, while strong leadership ensures team alignment and motivation.

What are the key skills and qualifications needed to thrive as a manufacturing operations manager, and why are they important?

To thrive as a Manufacturing Operations Manager, you need expertise in production planning, process optimization, and a solid understanding of manufacturing principles, often supported by a degree in engineering or business management. Familiarity with ERP systems, lean manufacturing tools, and quality assurance certifications like Six Sigma is highly valuable. Strong leadership, problem-solving abilities, and effective communication skills set outstanding managers apart in this role. These competencies are vital for driving productivity, maintaining quality standards, and leading teams to achieve operational goals.
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Manufacturing Operations Manager jobs near you
Infographic showing various Manufacturing Operations Manager job openings in California as of September 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $100,958 per year, or $48.5 per hour.

Senior Manager, Manufacturing Operations

Vacaville, CA • Hybrid

Oath
Non-Profits • 1 - 10 employees
Learn more about Oathexternal

$140K - $160K/yr

Full-time

Medical, PTO

Posted 26 days ago

Key responsibilities

  • Develop and maintain manufacturing SOPs, work instructions, specifications, and process documentation.

  • Support QC and batch release processes by ensuring required testing and documentation are completed prior to release.

  • Establish, track, and report manufacturing KPIs, including yield, success rate, quality, throughput, and operational performance.

Job description

About Oath: 

Oath is a leading microbial sciences company that utilizes natural soil biology to offer innovative solutions to some of the most critical challenges facing our planet - the climate crisis and the shift to sustainable agriculture. We imagine a world where these crises are not just alleviated, but reversed, replenishing Earth's microbiomes.

Our solution has moved beyond the lab and into real-world deployment, focused on improving farmer livelihoods with teams in Rwanda, Europe, the United States, and expanding. When you join Oath, you become part of a collaborative network that prioritizes high quality scientific work. You will be working alongside trained scientists, talented commercial teams, and a broad network of partners-an ecosystem designed to help you do your best work and grow your capabilities.

Position Summary:

The Senior Manager, Manufacturing Operations will help build and operationalize the systems, processes, and standards required to scale Oath's manufacturing activities. This role will work internally across production, quality, supply chain, regulatory, and technical teams and externally with vendors to ensure our processes are well documented, controlled, and ready for reliable execution across internal and external manufacturing partners.

Key Responsibilities:

  • Develop and maintain manufacturing SOPs, work instructions, specifications, and process documentation.
  • Establish and maintain product and raw material specifications and associated documentation.
  • Coordinate preparation and maintenance of SDSs, COAs, COCs, batch records, and release documentation.
  • Support QC and batch release processes, ensuring required testing and documentation are completed prior to release.
  • Drive manufacturing change control and process change management.
  • Coordinate activities across manufacturing, quality, regulatory, supply chain, shipping, and planning.
  • Support technology transfer and operational readiness with external manufacturing partners and CDMOs.
  • Establish, track, and report manufacturing KPIs, including yield, success rate, quality, throughput, and operational performance.
  • Identify operational gaps and implement systems and processes that improve manufacturing reliability and scalability.
  • Audit Oath vendors for compliance with process and procedures 

Qualifications: 

  • BS or MS in biotechnology, biochemical engineering, chemical engineering, microbiology, or a related discipline.
  • 7+ years of experience in biotechnology, biomanufacturing, fermentation, or a related manufacturing environment.
  • Strong experience with manufacturing documentation, SOPs, specifications, and controlled processes.
  • Experience working across manufacturing, quality, supply chain, and technical organizations.
  • Experience working with external manufacturers or CDMOs is a plus.
  • Familiarity with GoogleSuite, Excel, Slack and similar tools is a plus

Location: Hybrid, with regular presence at Oath's Vacaville, California site. Ability to travel 20% of the time (Europe & Africa).

Job Type: Full-time, exempt position in the United States. At this time, Oath, Inc. is not able to provide visa sponsorship or work authorization support.

Compensation: $140,000 - $160,000/year + equity

Benefits:

  • Health insurance
  • Paid time off
  • Stock options

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