The OT Security Architect is responsible for reviewing, assessing, and strengthening the security architecture of IT and Operational Technology (OT) solutions across on-premises, cloud, and integration environments. The role ensures that systems are designed and implemented according to security standards, hardening guidelines, and industry best practices. By supporting project teams during design and build phases, the OT Security Architect helps ensure secure implementation from the outset, while adapting controls to the unique operational constraints and risk profiles of OT environments. The position also contributes to improving technical documentation practices and promotes secure development principles throughout the lifecycle.
Key Skills for This Role
azure
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Summary
The OT Security Architect is responsible for reviewing, assessing, and strengthening the security architecture of IT and Operational Technology (OT) solutions across on-premises, cloud, and integration environments. The role ensures that systems are designed and implemented according to security standards, hardening guidelines, and industry best practices. By supporting project teams during design and build phases, the OT Security Architect helps ensure secure implementation from the outset, while adapting controls to the unique operational constraints and risk profiles of OT environments. The position also contributes to improving technical documentation practices and promotes secure development principles throughout the lifecycle.
What You Will Do
Security Architecture Reviews
Conduct Security Architecture Reviews for new and existing IT and OT solutions, including infrastructure, cloud (Azure), applications, and integrations
Assess and validate security controls for solution architectures (authentication, logging, encryption, API security, secure integration patterns)
Identify security risks and recommend mitigation measures to ensure solutions meet required protection levels before deployment
Project & Solution Support
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Encryption & Data Protection: Protecting sensitive data at rest and in transit
What We Are Looking For
Bachelor’s or Master’s degree in Computer Science, Information Security, IT, or related field (or equivalent experience)
Strong experience in IT and OT security architecture across infrastructure, applications, and integrations
Experience with cloud environments, particularly Microsoft Azure, and cloud security principles
Knowledge of security controls for on-premises infrastructure (system hardening, network segmentation, identity management, logging)
Experience reviewing integrations and APIs with secure authentication and data protection practices
Understanding of application security and secure development principles
Skills
Strong analytical and problem-solving skills for complex technical environments
Ability to work autonomously and manage priorities across multiple reviews and projects
Excellent written and verbal communication skills for technical and non-technical stakeholders
Strong organizational and coordination skills (scheduling, follow-ups, tracking outcomes)
Team-oriented mindset with a collaborative approach
Positive attitude, adaptability to new technologies, and evolving security challenges
Strong attention to detail in reviewing documentation and designs
About Lonza
At Lonza, our people are our greatest strength. With more than 30 sites across five continents, our globally connected teams work together every day to manufacture the medicines of tomorrow. Our core values—Collaboration, Accountability, Excellence, Passion, and Integrity—reflect who we are and how we work together. Everyone’s ideas, big or small, have the potential to improve millions of lives. Innovation thrives when people from all backgrounds bring their unique perspectives to the table. Lonza is committed to creating an inclusive environment for all employees.
About Lonza
Pharmaceuticals & Biotech10,001+Founded 1897
Lonza is a global supplier to the pharmaceutical, biotech, and nutrition markets, providing contract development and manufacturing services, specialty ingredients, and advanced technologies.
