Carrier

OT Security Engineer

Carrier

full-time

Posted on:

Location Type: Remote

Location: Czech

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Tech Stack

Cyber SecurityFirewalls

About the role

  • Design, implement, and maintain security controls for OT/ICS environments, including SCADA, PLCs, HMIs, engineering workstations, and plant networks
  • Develop OT security architecture aligned with the Purdue Model, ISA/IEC 62443, and company security standards
  • Support secure network segmentation between IT and OT, including firewalls, DMZs, and remote access solutions
  • Deploy and maintain OT monitoring tools (e.g., Nozomi, Claroty, Dragos) to identify anomalous behavior and potential intrusions
  • Investigate security alerts related to industrial assets and support incident response activities within OT environments
  • Analyze OT network traffic and develop detection logic for ICS-specific threats
  • Perform risk assessments on OT systems, control networks, and industrial equipment
  • Identify and prioritize vulnerabilities in OT assets, including legacy systems with limited patching options
  • Maintain accurate inventory of OT assets, communication flows, and dependencies
  • Collaborate with plant/operations engineers on secure configuration baselines for control system components
  • Provide engineering guidance during OT system upgrades, lifecycle replacements, and modernization projects
  • Communicate risks and recommended safeguards to non-technical stakeholders in manufacturing and operational groups.

Requirements

  • 3–7+ years of experience in cybersecurity, industrial control systems, OT engineering, or related technical fields
  • Hands-on experience with ICS/OT technologies such as SCADA systems, PLCs, DCS platforms, 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 one or more OT security platforms (Nozomi, Dragos, Claroty, etc.)
  • Strong troubleshooting skills in operational environments with high availability and safety requirements
  • Experience implementing segmentation, firewalls, and DMZs for OT networks
  • Knowledge of industrial protocols, vendor equipment (Rockwell/Allen-Bradley, Siemens, Schneider, Emerson), or SCADA platforms
  • Experience with incident response in ICS environments
  • Ability to write or review PLC logic (Ladder Logic, Function Block, Structured Text) is a plus
  • Certifications such as GICSP, GRID, ISA/IEC 62443 Cybersecurity Certificates, CCNA/CCNP, or CISSP
  • Strong communication and cross-functional skills; ability to work in safety-critical manufacturing or industrial environments.
Benefits
  • Exciting innovative environment
  • Possibility for further development and international career opportunities
  • High-profile team
  • Daily use of English and other foreign languages
  • Language courses
  • Competitive remuneration and other benefits (meal vouchers, contribution to life or pension insurance, holidays etc.)
  • Flexible working hours
  • Possibility for home office
  • Sick days

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
OT security architectureICS/OT technologiesnetwork segmentationrisk assessmentsdetection logictroubleshootingPLC logicindustrial protocolsincident responsevulnerability assessment
Soft skills
strong communicationcross-functional skillscollaborationengineering guidanceproblem-solvinganalytical skillsstakeholder communicationprioritizationadaptabilityattention to detail
Certifications
GICSPGRIDISA/IEC 62443 Cybersecurity CertificatesCCNACCNPCISSP