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Freelance Operational Technology Engineer Jobs (NOW HIRING)

DT Midstream

Senior OT Engineer - Houston, TX

Houston, TX

$99K - $137K/yr

Senior Operational Technology Engineer At DT Midstream, we've got the energy to achieve great things! DT Midstream owns and operates a diverse, integrated portfolio of midstream pipeline, storage and ...

AK Steel

Operations Technology Engineer

Cleveland, OH

$80K - $105K/yr

The Operations Technology Engineer partners closely with operations, maintenance, and leadership to improve equipment performance, develop best practices, and implement continuous and breakthrough ...

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How much do freelance operational technology engineer jobs pay per hour?

As of Jun 21, 2026, the average hourly pay for freelance operational technology engineer in the United States is $47.71, according to ZipRecruiter salary data. Most workers in this role earn between $24.28 and $61.78 per hour, depending on experience, location, and employer.

What is the difference between Freelance Operational Technology Engineer vs Freelance Industrial Automation Engineer?

AspectFreelance Operational Technology EngineerFreelance Industrial Automation Engineer
CredentialsRelevant certifications in OT, cybersecurity, and networkingCertifications in PLC programming, control systems, and automation
Work EnvironmentIndustrial facilities, control rooms, and remote sitesManufacturing plants, factories, and automation systems
Industry UsageUtilities, energy, manufacturing, and process industriesManufacturing, robotics, and process automation
Search & Comparison IntentSeeking OT-specific freelance roles, cybersecurity, or network integrationLooking for automation system design, programming, or troubleshooting

Both roles involve working with industrial systems, but the Freelance Operational Technology Engineer focuses on the integration and security of operational networks, while the Freelance Industrial Automation Engineer specializes in designing and programming automation systems. Understanding these distinctions helps clients find the right expertise for their industrial projects.

What cities are hiring for Freelance Operational Technology Engineer jobs? Cities with the most Freelance Operational Technology Engineer job openings:
What are the most commonly searched types of Operational Technology Engineer jobs? The most popular types of Operational Technology Engineer jobs are:
What states have the most Freelance Operational Technology Engineer jobs? States with the most job openings for Freelance Operational Technology Engineer jobs include:
Freelance Operational Technology Engineer jobs near you
Senior Operational Technology Engineer

Senior Operational Technology Engineer

Cellares

South San Francisco, CA • On-site

$125K - $172K/yr

Full-time

Posted 6 days ago

Job description

Job Summary:
Cellares is the first Integrated Development and Manufacturing Organization (IDMO) focused on mass manufacturing cell therapies. The Senior Operational Technology Engineer will lead and support IT/OT operations in a global cell therapy manufacturing lab environment, ensuring system reliability, scalability, and regulatory compliance across multiple sites.
Responsibilities:
• Manage and deliver OT systems and technology for the company’s industrial and cell manufacturing environments
• Own and maintain a robust OT roadmap, including project objectives, prioritization, and implementation plans
• Ensure OT production environments adhere to security best practices and comply with relevant regulations
• Provide hands-on technical support and troubleshooting for production-related OT/IT issues, ensuring minimal disruption to 24x7 operations
• Implement and monitor OT production systems to guarantee 24x7 uptime and reliability, including network, server, biotech manufacturing lab, and proprietary equipment
• Develop and deliver training programs for new OT staff relating to production environment
• Contribute to creating, maintaining SOPs, Policies, and Process
• Lead and support GMP-related activities, including change control, system validation, qualification (IQ/OQ/PQ), and audit readiness
• Own OT access management processes, including user provisioning, role-based access control, and periodic access reviews to ensure compliance with GxP, data integrity, and cybersecurity requirements
• Ensure compliance with industry regulations, standards, and best practices related to OT and data security
• Provide backup support to Corporate IT as needed to ensure continuity of enterprise IT services
Qualifications:
Required:
• Bachelor's Degree in related field or proper training
• 7+ years of relevant experience
• Proven experience in IT management with a manufacturing or industrial setting, with a strong focus on 24x7 operational support
• Experience with monitoring, server management, and cybersecurity best practices
• Experience with Fortigate firewalls, Hirschmann industrial switches, lab and warehouse equipment
• Experience with various applications such as Nutanix Prism, SharePoint, and JIRA
• Experience working in a biotech regulated environment
• Knowledge of and experience with current Good Manufacturing Practices (cGMP) required
• Ability to independently prioritize work and deliver results effectively in a fast-paced environment.
• Ability to be a strong problem-solving skills and the ability to work under pressure
• Requires availability for on-call support and extended hours during critical system issues to maintain 24x7 operations
• Self-awareness, integrity, authenticity, and a growth/entrepreneurial mindset
Company:
Cellares is an Integrated Development and Manufacturing Organization dedicated to the automated, large-scale production of cell therapies. Founded in 2019, the company is headquartered in South San Francisco, USA, with a team of 201-500 employees. The company is currently Growth Stage.
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About Cellares

Sourced by ZipRecruiter

Industry

Pharmaceutical and medicine manufacturing

Company size

11 - 50 Employees

Headquarters location

South San Francisco, CA, US

Year founded

2019

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