Jobs · Information Technology · Wisconsin

Operations Technology Cybersecurity Analyst

Silgan Containers · Brookfield, WI · 2 mo ago
Information TechnologyFull-time

What We Can Offer You

  • An inclusive and collaborative culture where every team member is valued and recognized.
  • Competitive salary and comprehensive benefits, including health, dental, vision, life, disability, and AD&D coverage.
  • Supplemental benefits such as pet insurance, telemedicine access, and employee perk programs.
  • 401(k) plan with employer match (after eligibility period).
  • Paid time off and holiday schedule.
  • Tuition assistance for professional development and certifications.
  • Opportunity to work in a stable, growth-oriented environment.

What You Will Do

  • Monitor, assess, and respond to cybersecurity threats and vulnerabilities in OT environments, including ICS, DCS, and PLC systems.
  • Coincide OT Intrusion Detection Software (IDS) site implementation and manage consultant deliverables.
  • Administer Claroty and similar monitoring software; escalate IDS alerts to stakeholders and assist with remediation.
  • Implement and maintain OT cybersecurity controls aligned with NIST, ISA/IEC 62443, and related frameworks.
  • Conduct OT risk assessments, threat modeling, and gap analyses for OT assets and networks.
  • Investigate incidents, perform root cause analyses, and coordinate response efforts with relevant teams.
  • Conduct vulnerability assessments and penetration testing while ensuring minimal operational disruption.
  • Support design and maintenance of network segmentation, firewalls, secure remote access, and other OT security controls.
  • Aid with audits, compliance reporting, and documentation for standards such as NERC CIP, SOX, and ISO 27001.
  • Maintain OT asset inventory and documentation of system configurations and cybersecurity controls.
  • Stay current with emerging OT/ICS security threats and technologies.

What You Need To Have

  • A bachelor’s degree in Cybersecurity, Information Technology, Engineering, Automation, or a related field (or equivalent experience).
  • Experience working in manufacturing shop floor environments.
  • Strong analytical, troubleshooting, and communication skills.
  • Ability to work effectively in fast-paced operational environments.
  • Collaboration with Plant Managers to align security activities with scheduled maintenance outages and production cycles.
  • Willingness to travel to manufacturing sites as needed for system implementation and support (up to 25-50%).
  • Experience implementing compensating controls for legacy systems that cannot be patched or upgraded.
  • Experience managing security requirements with third-party automation vendors and OEMs (Rockwell, Siemens, Honeywell, etc.).
  • Preferred but not required: 3+ years of cybersecurity experience, including 1–2 years in OT or ICS environments.
  • Knowledge of industrial protocols (e.g., Modbus, DNP3, OPC, BACnet).
  • Familiarity with frameworks such as NIST 800-82, ISA/IEC 62443, NERC CIP, and MITRE ATT&CK for ICS.
  • Hands-on experience with SIEMs, IDS/IPS, vulnerability scanners, firewalls, and asset discovery tools.
  • Knowledge and support of device networking and manufacturing systems.
  • Certifications such as GICSP, CISSP, CISM, CISA, GRID, or Security+.
  • ICS515 (ICS Visibility, Detection, and Response), ICS612: (ICS Cybersecurity In-Depth).

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