Industrial OT Security Specialist – Operational Technology

Raízen

Especialista em Segurança Industrial OT focado em Cyber Security para apoiar operações do Grupo Cosan. Lidera iniciativas de monitoramento de segurança e desenvolve casos de uso de detecção.

Posted 6/9/2026full-timeRemote • 🇧🇷 BrazilMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

Cyber Security

About the role

Key responsibilities & impact

Act as the technical Cyber Security specialist for OT/ICS environments, supporting high-criticality industrial operations across different companies within the Cosan Group;
Lead initiatives to expand OT security monitoring, including onboarding new plants, industrial networks, critical assets, and operational technologies into the monitoring ecosystem;
Develop and refine detection use cases for industrial environments, using OT monitoring platforms, SIEM, EDR and specialized threat detection solutions;
Perform industrial network architecture analyses, evaluating segmentation, zones and conduits, communication flows, and adherence to security best practices for ICS environments;
Participate in defining and reviewing secure architectures for new industrial projects, operational expansions, and OT digital transformation initiatives;
Support identification, analysis and assessment of cyber threats, vulnerabilities and exposures in industrial environments, proposing prioritized mitigation plans based on risk;
Work with Engineering, Automation, Network and Operations teams to implement security controls for OT environments;
Provide technical support for the cyber incident response process involving industrial systems, contributing root cause analysis, containment and corrective actions;
Conduct technical assessments of maturity, hardening, industrial network segmentation and compliance with market frameworks and standards;
Manage vendors and partners specialized in OT security, ensuring technical quality, governance and continuous evolution of contracted services;
Prepare executive reports and presentations for different organizational levels, communicating risks, metrics, progress and investment needs;
Support the definition of the Group's OT Cyber Security strategy, contributing to the advancement of industrial security maturity.

Requirements

What you’ll need

Bachelor's degree in Technology, Information Security or related fields;
Hands-on experience in industrial OT environments, including field visits to assess systems and infrastructure, with the ability to propose improvements;
Experience in security for automation networks (ICS/SCADA) and familiarity with industry standards (NIST, ISA/IEC 62443, ISO);
Risk-oriented mindset with the ability to identify actions and set priorities;
Experience in vulnerability remediation and management;
Experience managing contracts and third-party OT vendors;
Experience with EDR management;
Experience with management of TDDs (Threat Detection Devices);
Basic knowledge of IPS and Firewall functionalities;
Knowledge of IT Governance and Risk Management, metrics and maturity assessment models;
Ability to work collaboratively with diverse technical and multidisciplinary teams;
Knowledge to contribute to discussions on optimal architectures;
Up-to-date and interested in industry best practices on the subject;
Analytical mindset and problem-solving skills;
Clear communication and strong adaptability;
Basic knowledge of SIEM.

Benefits

Comp & perks

All our vacancies are open to people of any sexual orientation, gender identity, race, ethnicity and age, with or without disabilities.

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Applicant Tracking System Keywords

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Hard Skills & Tools

Cyber SecurityOT environmentsICSSCADAEDR managementvulnerability remediationrisk managementnetwork segmentationSIEMIPS

Soft Skills

analytical mindsetproblem-solving skillsclear communicationadaptabilitycollaborationrisk-oriented mindsetability to propose improvementstechnical supportleadershippresentation skills

Certifications

Bachelor's degree in TechnologyBachelor's degree in Information SecurityNIST standardsISA/IEC 62443ISO standards