OT Cyber Security Engineer

Welcome to Haleon, a purpose-driven consumer health company with a portfolio including Sensodyne®, Panadol®, Advil®, Voltaren®, Theraflu®, Otrivin®, and Centrum®. The company focuses on delivering everyday health through a blend of human understanding and trusted science, operating with an agile, performance-focused culture.

• 3+ years of hands-on engineering experience in operational technology or industrial control system security
• Preferred certifications: CISSP, CISM, GICSP, IEC 62443 Cybersecurity Expert or equivalent
• Technical knowledge of Claroty and/or Cisco industrial security solutions, OT protocols, and secure IT/OT architectures
• Engineering and implementation skills including configuration, integration, scripting, and troubleshooting in OT environments
• Strong problem-solving and analytical skills focused on operational stability, safety, and security
• Ability to translate solution designs into maintainable engineering deliverables in industrial settings
• Stakeholder management and communication skills with OT operations teams
• Understanding of how OT cybersecurity supports operational continuity and risk reduction
• Up-to-date knowledge of current and emerging OT-specific cyber threats and defensive technologies

Nice to have:

• Hands-on expertise with Claroty platforms for OT asset visibility, exposure management, and network protection, and Cisco industrial networking and security solutions
• Experience in OT protocols, segmentation, Purdue Model implementation, and IT/OT convergence environments
• Proven track record in implementing and supporting complex OT security solutions in industrial, large-scale, or critical infrastructure settings
• Experience with scripting and automation relevant to OT environments
• Knowledge of relevant OT standards and regulations (e.g., IEC 62443, NIS Regulations, GDPR)

• Act as subject matter expert for design, build, configuration, integration, and optimisation of OT cybersecurity solutions, especially in Claroty and Cisco industrial security technologies
• Lead technical implementation and deployment of new OT security capabilities across IT/OT environments
• Provide expert engineering support for day-to-day operations, maintenance, troubleshooting, and performance tuning of OT security platforms
• Collaborate with Product Manager, Solution Architects, and delivery teams to ensure effective implementation meeting business, operational, and security requirements
• Develop and maintain technical standards, configuration baselines, automation scripts, and operational procedures for OT security systems
• Lead vulnerability remediation, patching, and security hardening for OT cybersecurity platforms and connected industrial assets
• Support incident response and problem management activities, including root cause analysis and permanent fixes
• Mentor and provide technical guidance to junior engineers and team members on OT security technologies and best practices
• Monitor system performance, availability, capacity of OT security tooling, and drive continuous improvement and automation initiatives
• Contribute to evaluation and selection of new OT security tools or enhancements within the OT domain

Haleon is committed to diversity and inclusion, ensuring all employees feel they belong. Personal information collected during application is confidential and not used in employment decisions. Candidates can request reasonable adjustments during the application process. Communications from Haleon recruitment use official @haleon.com email accounts only.