OT Security Architect

Lonza; Hyderabad; On-site; Confidential; Full time

Job summary

The OT Security Architect at Lonza reviews and strengthens security architecture for IT and OT solutions across on-premises, cloud (Azure), and integrations. You will guide project teams to apply secure-by-design principles, assess risks, and tailor controls to OT environments while improving documentation and secure development practices.

Strong knowledge of ICS/SCADA risks, cloud security, IAM, encryption, and data protection is essential for success in this role at Lonza.

Qualifications

• Bachelor's or Master's in CS, Info Security, IT or related field.
• Strong IT and OT security architecture experience across infra, apps, and integrations.
• Experience with Azure cloud and cloud security principles.

Responsibilities

• Review and strengthen security architecture for IT and OT solutions across on-prem, cloud, and integrations.
• Provide security guidance to project teams during design and build phases.
• Review integrations and APIs for secure data exchange and protection.
• Promote secure development practices and ensure security-by-design principles.
• Produce clear architecture documentation and diagrams.

Skills

OT security fundamentals

Security architecture

Network segmentation

Risk assessment

Security-by-design

Cloud security (Azure)

IAM (MFA)

Encryption & data protection

Education

Bachelor's or Master's degree in Computer Science, Information Security, IT

Tools

Azure

SIEM

Job description

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

• Provide security guidance to project teams during design and build phases, ensuring security-by-design principles are applied
• Review integrations and APIs to ensure secure data exchange and appropriate protection mechanisms for services and external connections
• Evaluate and recommend security measures tailored to operational constraints and risk profiles of OT environments

Secure Development Practices

• Provide guidance on secure coding principles and application security controls
• Promote secure handling of data within applications and services
• Support teams in adopting secure development practices across the lifecycle
• Assist teams in producing clear and accurate technical architecture documentation, including diagrams
• Provide guidance, tools, or automation to improve documentation quality
• Collaborate with stakeholders to ensure security concepts are clearly communicated and understood

Critical Job Requirements

• OT Security Fundamentals: Understanding of industrial systems (ICS/SCADA) and their risks
• Security Architecture: Ability to design/review IT and industrial system architectures and identify security risks
• Network Segmentation: Expertise in securing boundaries between IT and OT environments using firewalls and secure connectivity
• Risk Assessment: Skilled in identifying risks while considering operational constraints and availability requirements
• Security-by-design: Proven ability to integrate security controls early in solution design and adapt them to real-world operational limitations
• Cloud Security (Azure): Experience securing cloud services including access, network, and configuration management
• Identity & Access Management (IAM): Managing users, roles, permissions, and multi-factor authentication (MFA)
• 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.