OT Security Engineer

Join to apply for the OT Security Engineer role at Carrier Climate Solutions Transportation. Role: OT Security Engineer Location: Monterrey, Mexico Full/Part-time: Full-time Hybrid Scheme: 3 days on-site and 2 days working from home. Schedule: 7 am to 4 pm - Monday to Friday About the Company Carrier Global Corporation, a global leader in intelligent climate and energy solutions, is committed to creating solutions that matter for people and our planet for generations to come. From the beginning, we've led in inventing new technologies and entirely new industries. Today, we continue to lead because we have a world‑class, diverse workforce that puts the customer at the center of everything we do. About the Role As an OT Security Engineer, you will play a critical role in safeguarding the technologies that operate and control Carrier’s industrial environments. Your work will ensure that our manufacturing processes remain safe, reliable, and resilient against cyber threats by designing and implementing robust security controls across OT networks and assets, protecting physical processes and supporting modernization initiatives that drive operational excellence. Key Responsibilities Designing, implementing, and maintaining security controls for OT/ICS environments, including SCADA, PLCs, HMIs, and plant networks. Developing OT security architecture aligned with industry standards such as the Purdue Model and ISA/IEC 62443. Supporting secure network segmentation between IT and OT, including firewalls, DMZs, and remote access solutions. Deploying and maintaining OT monitoring tools (e.g., Nozomi, Claroty, Dragos) to detect threats and anomalies. Performing risk assessments and vulnerability management for OT systems, including legacy equipment. Requirements We are looking for people who are detail‑oriented, collaborative, and passionate about cybersecurity in industrial environments. As a Minimum You Must Have 3–7+ years of experience in cybersecurity, industrial control systems, or OT engineering. Hands‑on experience with ICT/OT technologies such as SCADA systems, PLCs, or industrial automation networks. Understanding of OT networking concepts (Modbus, DNP3, OPC, BACnet, Profinet, EtherNet/IP). Familiarity with OT security frameworks such as ISA/IEC 62443 or NIST 800‑82. Experience with OT security platforms (Nozomi, Dragos, Claroty). Nice to Have Experience implementing segmentation, firewalls, and DMZs for OT networks. Knowledge of industrial protocols and vendor equipment (Rockwell, Siemens, Schneider, Emerson). Incident response experience in IT/ICS environments. Ability to write or review PLC logic (Ladder Logic, Function Block, Structured Text). Certifications such as GICSP, GRID, ISA/IEC 62443 Cybersecurity Certificates, CCNA/CCNP, or CISSP. Benefits Health insurance. Professional development opportunities. Our Commitment to You We provide a great place to work that attracts, develops, and retains the best talent, promotes employee engagement, fosters teamwork, and ultimately drives innovation for the benefit of our customers. Diversity and inclusion are the engine to growth and innovation. Apply Now Join us and make a difference. Equal Opportunity Statement Carrier is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class. Job Applicant's Privacy Notice Click on this link to read the Job Applicant's Privacy Notice. #J-18808-Ljbffr